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{{Timeline}}
{{Timeline}}


'''2552''' was the penultimate year in the [[Human-Covenant War]], during which the [[Human]]s of the [[United Nations Space Command]] nearly saw utter defeat and extinction, though the tide turned, and with the help of the [[Sangheili]], won the Human-Covenant War. The [[Covenant Empire|Covenant]] were at the peak of their power and reach in 2552, with major assaults on the Human [[Inner Colonies]] and an invasion followed by a [[Battle of Earth|prolonged engagement]] on their home planet, [[Earth]].<ref>'''[[Halo 2]]''', campaign level, ''[[Cairo Station (Level)|Cairo Station]]''</ref><ref>'''[[Halo: Ghosts of Onyx]]'''</ref><ref>'''[[Halo 3]]''', campaign level, ''[[The Storm (Level)|The Storm]]''</ref> During the [[Battle of Installation 04|battle]] at [[Installation 04]], the galaxy found its first large outbreak of the [[Flood]] threat in over a hundred thousand years.<ref>'''[[Halo: Combat Evolved]]''', campaign level, ''[[343 Guilty Spark (Level)|343 Guilty Spark]]''</ref><ref>'''[[Halo: Combat Evolved]]''', campaign level, ''[[The Library (Level)|The Library]]''</ref> Over two months later, an even larger outbreak occurred at [[Installation 05]].<ref>'''[[Halo 2]]''', campaign level, ''[[Sacred Icon (Level)|Sacred Icon]]''</ref>
'''''2552''''' was the penultimate year in the [[Human-Covenant War]], during which the [[Human]]s of the [[United Nations Space Command]] nearly saw utter defeat and extinction, though the tide turned, and with the help of the [[Sangheili]], won the Human-Covenant War. The [[Covenant Empire|Covenant]] were at the peak of their power and reach in 2552, with major assaults on the Human [[Inner Colonies]] and an invasion followed by a [[Battle of Earth|prolonged engagement]] on their home planet, [[Earth]].<ref>'''[[Halo 2]]''', level ''[[Cairo Station (Level)|Cairo Station]]''</ref><ref>'''[[Halo: Ghosts of Onyx]]'''</ref><ref>'''[[Halo 3]]''', level ''[[The Storm (Level)|The Storm]]''</ref> During the [[Battle of Installation 04|battle]] at [[Installation 04]], the galaxy found its first large outbreak of the [[Flood]] threat in over a hundred thousand years.<ref>'''[[Halo: Combat Evolved]]''', level ''[[343 Guilty Spark (Level)|343 Guilty Spark]]''</ref><ref>'''Halo: Combat Evolved''', level ''[[The Library (Level)|The Library]]''</ref> Over two months later, an even larger outbreak occurred at [[Installation 05]].<ref>'''Halo 2''', level ''[[Sacred Icon (Level)|Sacred Icon]]''</ref>


The war finally drew to a close at [[Installation 00]], known more commonly as the "''Ark''", with the Humans and Sangheili attempting to assassinate the [[Prophet of Truth]], before he could activate the remaining Halo Installations.<ref>'''[[Halo 3]]''', campaign level, ''[[The Ark (Level)|The Ark]]''</ref><ref>'''[[Halo 3]]''', campaign level, ''[[The Covenant (level)|The Covenant]]''</ref> The alliance was successful in their mission against the Covenant.
The war finally drew to a close at [[Installation 00]], known more commonly as the "''Ark''", with the Humans and Sangheili attempting to assassinate the [[Prophet of Truth]], before he could activate the remaining Halo Installations.<ref>'''Halo 3''', level ''[[The Ark (level)|The Ark]]''</ref><ref>'''Halo 3''', level ''[[The Covenant (Level)|The Covenant]]''</ref> The alliance was successful in their mission against the Covenant.


==Events==
==Events==


===January===
===January===
'''January 8th'''
'''January 8'''
*A team of [[ODST]]'s (Including [[Kojo Agu]] and [[Taylor H. Miles]]) descend onto [[Ariel]] (a small science colony) in response to a distress call on the planet in [[Operation: FIRESIDE]].<ref>[[Halo: Helljumper Issue 1]], ''page 3'' "''UNSC Operation 2552-JA-8 Codename: Fireside''"</ref>
*A team of [[ODST]]'s (Including [[Kojo Agu]] and [[Taylor H. Miles]]) descend onto [[Ariel]] (a small science colony) in response to a distress call on the planet in [[Operation: FIRESIDE]].<ref>[[Halo: Helljumper Issue 1]] page 3 "''UNSC Operation 2552-JA-8 Codename: Fireside''"</ref>


===February===
===February===
*[[Insurrectionist]]s on [[Harmony]] disable the planet's primary communications relay and steal two drydocked [[freighter]]s.<ref>'''[[Halo: Reach]]''', campaign level, ''[[Noble Actual]]''</ref>
*[[Insurrectionist]]s on [[Harmony]] disable the planet's primary communications relay and steal two drydocked [[freighter]]s.<ref>'''[[Halo: Reach]]''' level ''[[Noble Actual]]''</ref>


===April===
===April===
'''April 22nd'''
'''April 22'''
*[[Battle of the unidentified human colony]]: [[Noble Team]] member [[Thom-293]] destroys a {{Class|CCS|battlecruiser}} but kills himself in the process. [[Catherine-B320]] loses her right arm.
*[[Battle of the Unidentified Human Colony]]: [[Noble Team]] member [[Thom-293]] destroys a [[CCS-class Battlecruiser]] but kills himself in the process, and [[Catherine-B320]] loses her arm. She subsequently receives a robotic prosthetic.


==May==
===May===
'''May 10th'''
'''May 10'''
*[[SPARTAN-B312]] participates in a counter-insurgency operation on [[Mamore]]. The SPARTAN exhibits great skill as a [[YSS-1000 Sabre]] pilot, garnering the approval of [[Colonel]] [[Urban Holland]] and leading to the SPARTAN's assignment to Noble Team.<ref>''Halo: Reach'' instruction manual</ref>
*[[SPARTAN-B312]] takes place on a counter-insurgency operation on [[Mamore]]. The SPARTAN's skills as a [[Sabre]] pilot are exhibited during the op, prompting [[Urban Holland|Colonel Urband Holland]] to have the SPARTAN transferred to Noble Team.


===July===
===July===
'''July 17th'''
'''July 17'''
*Slipspace probes from the ''[[Archimedes]]'' encounter Covenant ships sent to attack [[Sigma Octanus IV]].
*The Slipspace probes from the [[Archimedes]] encounter the [[Covenant]] ships sent to attack [[Sigma Octanus IV]]
*The {{UNSCShip|Iroquois}} is tasked with patrolling the Sigma Octanus system.
*The {{UNSCShip|Iroquois}} is tasked with patrolling the Sigma Octanus Star System.
*The [[Battle of Sigma Octanus IV]] begins.
*The [[Battle of Sigma Octanus IV]] begins.


'''July 18th'''
'''July 18'''
*The UNSC win a victory during the battle at Sigma Octanus IV. [[Commander]] [[Jacob Keyes]] of the ''Iroquois'' plays a critical role in this success, destroying multiple Covenant vessels with the eponymous "[[Keyes Loop]]". Keyes is subsequently promoted to [[Captain (Navy)|Captain]] by [[Vice Admiral]] [[Hieronymus Michael Stanforth|Michael Stanforth]]. Unknown to the UNSC, the Covenant place a tracker on the hull of the ''Iroquois''. The importance of [[Reach]] to the UNSC is revealed to the Covenant when the ''Iroquois'' returns to that world.
*The UNSC win a victory during the battle at Sigma Octanus IV. [[Jacob Keyes|Commander Jacob Keyes]], of the {{UNSCShip|Iroquois}}, plays a critical role in this success when he devises the [[Keyes Loop]]. Keyes is subsequently promoted to [[Captain]] by [[Michael Stanforth|Vice Admiral Michael Stanforth]]. Unknown to the UNSC, the Covenant place a tracker on the hull of the ''Iroquois''. The importance of [[Reach]] to the UNSC is revealed to the Covenant when the ''[[Iroquois]]'' returns to that world.


'''July 23rd'''
'''July 24'''
*[[3 Charlie]], a [[UNSC Army]] fireteam, is sent on patrol in [[Longhorn Valley]] on Reach. They receive orders to investigate a disturbance at the [[Visegrad Relay]].<ref>'''[[Patrol]]'''</ref>
*Two months after the death of Thom-293, SPARTAN-B312 joins Noble Team as Noble Six.
*Noble Team is sent by Colonel Urban Holland on a mission to investigate a downed [[Visegrad Relay|communication relay]] on Reach.
*The Covenant begin their [[Fall of Reach|invasion of Reach]].
*Noble Team discovers the Covenant's presence on Reach for the first time, learning that it was they who sabotaged the relay at Visegrad. Planetary directive [[WINTER CONTINGENCY]] is declared.


'''July 24th'''
'''July 26'''
*Two months after the death of [[Thom-293]], [[SPARTAN-B312]] joins [[Noble Team]] as Noble Six.
*[[Sword Base]], a ONI research facility comes under attack by a [[Covenant corvette]]. The [[UNSC Army]] with the help of Noble Team successfully repel the attack and the Corvette is destroyed by orbital support.
*[[SPARTAN Program|SPARTAN]] [[Noble Team]] is sent by [[Colonel]] [[Urban Holland]] on a mission to investigate the disabled Visegrad Relay. Holland and the SPARTAN believe that the relay has been sabotaged by [[insurrectionist]]s. Instead, Noble Team discovers the presence of a Covenant strike force. [[WINTER CONTINGENCY]] is declared on Reach.
 
'''July 26th'''
*[[Sword Base]], an Office of Naval Intelligence research facility, comes under attack by a [[Covenant corvette]]. UNSC Army forces, with the help of Noble Team, successfully repel the attack. The corvette is destroyed by orbital support.


===August===
===August===
'''Unknown date'''
'''Unknown date'''
*After discovering Reach, the Covenant move on to glass the other planets in the system, including [[Tribute]], resulting in the prolonged [[Battle of Tribute]].
*After discovering Reach, the Covenant move on to glass the other planets in the system, including [[Tribute]], resulting in the prolonged [[Battle of Tribute]].
*During the Battle of Tribute, [[SPARTAN-II]] [[Team Black]] is sent to [[Verge]] to destroy a Covenant [[Beacon]] supplying [[Helium|helium-3]] to the ships laying siege on Tribute. The team successfully destroys the beacon.<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', "[[Blunt Instruments]]"</ref>
*During the Battle of Tribute, [[SPARTAN-II]] [[Team Black]] is sent to [[Verge]] to destroy a Covenant [[Beacon]] supplying [[Helium|helium-3]] to the ships laying siege on Tribute. The team successfully destroys the beacon.<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''' - ''[[Blunt Instruments]]''</ref>
*After the mission on Verge, Fireteam Black is assigned to [[Operation: BLOWBACK]], a covert mission in Covenant-occupied space. [[UNSC Long Time Coming|Their ship]], as well as a [[Clarity of Faith|Covenant carrier]], crash-land on an [[Unnamed Moon|unknown moon]], igniting the [[Battle of Line Installation 1-4]].
*After the mission on Verge, Fireteam Black is assigned to [[Operation: BLOWBACK]], a covert mission in Covenant-occupied space. [[UNSC Long Time Coming|Their ship]], as well as a [[Clarity of Faith|Covenant carrier]], crash-land on an [[Unnamed Moon|unknown moon]], igniting the [[Battle of Line Installation 1-4]].


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*The {{UNSCShip|Apocalypso}} crashes in lunar orbit, a [[Slipspace Anomaly]] knocking out communications within the Solar System for [[seven]] seconds.
*The {{UNSCShip|Apocalypso}} crashes in lunar orbit, a [[Slipspace Anomaly]] knocking out communications within the Solar System for [[seven]] seconds.


'''August 12th'''
'''August 12'''
*[[John-117]] and [[Corporal Harland]] are debriefed by [[ONI]] at [[Camp Hathcock]], [[Reach]], on the events on [[Côte d'Azur]] during the [[Battle of Sigma Octanus IV]].
*[[SPARTAN-117]] and [[Corporal Harland]] are debriefed by [[ONI]] at [[Camp Hathcock]], Reach, on the events on [[Côte d'Azur]] during the Battle of Sigma Octanus IV.
*[[Battle of Viery]]: UNSC forces assault an amassing Covenant invasion force in the [[Viery Territory]] on Reach. A cloaked [[Covenant supercarrier]] (the ''Long Night of Solace'') that spearheaded the Covenant invasion is revealed.
*[[Battle of Viery]]: UNSC forces assault an amassing Covenant invasion force in the [[Viery Territory]] on Reach, managing to destroy two AA Plasma Cannons and a [[Spire One|Covenant Spire]]. However, a cloaked [[Covenant supercarrier]] (the ''Long Night of Solace'') that spearheaded the Covenant invasion is revealed; the supercarrier destroys the frigate {{UNSCShip|Grafton}}, which had been providing air support.


'''August 13th'''
'''August 13'''
*60% of the remainder of the UNSC fleet is recalled to Reach, with the first battle group arriving in 48 hours.
*60% of the remainder of the UNSC fleet is recalled to Reach, destined to arrive within the next 48 hours.


'''August 14th'''
'''August 14'''
*[[Operation: UPPERCUT]] is initiated, as Noble Team retakes the [[Sabre Program Launch/Research Range]] and joins the battle in orbit, eventually capturing the Covenant corvette ''[[Ardent Prayer]]'' and using it to deliver the {{UNSCShip|Savannah}}'s [[Shaw-Fujikawa Translight Engine]], used as a makeshift bomb, to the ''Long Night of Solace'' . The ''Solace ''is destroyed at the cost of [[Jorge-052]], who sacrifices himself to detonate the drive manually. Moments after the carrier's destruction, [[Fleet of Particular Justice|a massive Covenant fleet]] enters in-system.
*[[Operation: UPPERCUT]] is initiated, as Noble Team retakes the [[Sabre Program Launch/Research Range]] and joins the battle in orbit, eventually capturing the Covenant corvette ''[[Ardent Prayer]]'' and using it to deliver the {{UNSCShip|Savannah}}'s [[Shaw-Fujikawa Translight Engine]], used as a makeshift bomb, to the ''Long Night of Solace'' . The ''Solace ''is destroyed at the cost of [[Jorge-052]], who sacrifices himself to detonate the drive manually. Moments after the carrier's destruction, [[Fleet of Particular Justice|a massive Covenant fleet]] enters in-system.


'''August 18th'''
'''August 23'''
*[[Siege of New Alexandria]] begins as the Covenant lay siege to the city of [[New Alexandria]].
*Noble Six participates in the Battle of New Alexandria on Reach. Six rescues civilians by helping them escape. Noble Six eventually meets up with the rest of Noble Team, and the Covenant begin glassing the city. As Noble Team is on their way to a fallout shelter under the [[Olympic Tower]], Catherine-B320 is killed by sniper fire.
 
'''August 25'''
*[[Dr. Halsey]] and [[Cortana]] choose the {{UNSCShip|Pillar of Autumn}}, with Jacob Keyes as its commander, for a secret mission Halsey is planning.


'''August 23rd'''
'''August 26'''
*Noble Six participates in the Battle of New Alexandria on Reach. Six rescues civilians by helping them escape. Noble Six eventually meets up with the rest of [[Noble Team]], and the Covenant begin glassing the city. As Noble Team is on their way to a fallout shelter under the [[Olympic Tower]], [[Catherine-B320]] is killed by an [[Elite Zealot]]'s sniper fire.


'''August 25th'''
*The remainder of Noble Team is evacuated from the destroyed New Alexandria via a Pelican.
*[[Dr. Halsey]] and [[Cortana]] choose the {{UNSCShip|Pillar of Autumn}}, with [[Jacob Keyes]] as its commander, for a secret mission Halsey is planning.


'''August 27th'''
'''August 27'''
*All available [[SPARTAN-II]]s gather at the [[Fleet Command Headquarters|FLEETCOM Military Complex]] on [[Reach]], where they learn of [[Operation: RED FLAG|their next mission]]: to acquire a [[Covenant]] vessel, navigate to the Covenant home world, and return with captured Covenant [[Hierarchs|leadership]].
*All available SPARTAN-IIs gather at the [[Fleet Command Headquarters|FLEETCOM Military Complex]] on Reach, where they learn of their next mission: to acquire a Covenant vessel, navigate to the Covenant home world, and return with captured Covenant [[Hierarchs|leadership]].


'''August 29th'''
'''August 29'''
*[[John-117]] receives a [[Spartan Neural Interface|neural interface]] upgrade, [[MJOLNIR Powered Assault Armor/Mark V|MJOLNIR Mark V armor]], and is introduced to Cortana.
*SPARTAN-117 receives a [[Spartan Neural Interface|neural interface]] upgrade, [[MJOLNIR Powered Assault Armor/Mark V|MJOLNIR Mark V armor]], and is introduced to Cortana.
*[[Noble Team]] is ordered to destroy Sword Base in a torch-and-burn op. During the operation, Noble Team makes their way inside Sword Base where they encounter Dr. Halsey, who asks them to protect her lab. Noble Team is then given direct orders to escort a fragment of Cortana holding crucial data from the [[Babd Catha Forerunner Complex]] to the ''Pillar of Autumn''. Halsey is then escorted back to CASTLE base by [[Jun-A266]].
*Noble Team is ordered to destroy Sword Base in a torch-and-burn op. During the operation, Noble Team makes their way inside Sword Base where they encounter Dr. Halsey, who asks them to protect her lab. Noble Team is then given direct orders to escort a fragment of Cortana holding crucial data from the [[Babd Catha Forerunner Complex]] to the ''Pillar of Autumn''. Halsey is then escorted back to CASTLE base by [[Jun-A266]].


'''August 30th'''
'''August 30'''
*[[Cortana]] has [[ONI]] [[James Ackerson|Colonel James Ackerson]] illicitly transferred to the front. This is her revenge for his attempts to eliminate both her and [[SPARTAN-117]].
*Cortana has ONI [[James Ackerson|Colonel James Ackerson]] illicitly transferred to the front. This is her revenge for his attempts to eliminate both her and SPARTAN-117.
*[[Jake Chapman|First Lieutenant Jake Chapman]], along with most of [[Charlie Company]] is killed during the [[Fall of Reach]].
*[[Jake Chapman|First Lieutenant Jake Chapman]], along with most of [[Charlie Company]] is killed during the Fall of Reach.
*The [[Covenant]], despite sustaining heavy losses, wins a crushing victory at the Fall of Reach. Many of the remaining [[SPARTAN-II]]s are killed.
*The Covenant, despite sustaining heavy losses, wins a crushing victory at the Fall of Reach. Many of the remaining SPARTAN-IIs are killed.
*The surviving [[SPARTAN-IIs]] on Reach are separated into two groups. One recovers [[Danforth Whitcomb|Vice Admiral Whitcomb]] and goes into hiding at [[Camp Independence]]. The others are admitted into [[CASTLE Base]] by [[Dr. Halsey]] and receive parts of the [[MJOLNIR]] Mark V upgrade and new weapons.
*The surviving [[SPARTAN-IIs]] on Reach are separated into two groups. One recovers [[Danforth Whitcomb|Vice Admiral Whitcomb]] and goes into hiding at [[Camp Independence]]. The others are admitted into [[CASTLE Base]] by Dr. Halsey and receive parts of the [[MJOLNIR]] Mark V upgrade and new weapons.
*[[Dr. Halsey]] learns of [[Colonel Ackerson]]'s mysterious plans that seem to involve "her" [[Spartans]].
*Dr. Halsey learns of [[Colonel Ackerson]]'s mysterious plans that seem to involve "her" [[Spartans]].
*[[SPARTAN-B312]] destroys a [[CCS-class Battlecruiser]] with a [[Onager|mass driver]] to allow the ''Pillar of Autumn'' to escape Reach. The Spartan is killed by Sangheili soon after. The ''Autumn'' jumps away from the system, with Cortana using Forerunner navigation data from the [[Sigma Octanus IV Artifact]] as well as the [[Babd Catha Forerunner Complex]].
*SPARTAN-B312 destroys a CCS-class Battlecruiser with a [[Mark 2488 Magnetic Accelerator Cannon|mass driver]] to allow the ''Pillar of Autumn'' to escape Reach. The Spartan is killed by Sangheili soon after. The ''Autumn'' jumps away from the system, with Cortana using Forerunner navigation data from the [[Sigma Octanus IV Artifact]] as well as the Babd Catha Forerunner Complex.


===September===
===September===
*The planet [[Coral]] is reported glassed by the [[Covenant Empire|Covenant]].
*The planet [[Coral]] is reported glassed by the Covenant.
*The [[Battle of New Jerusalem]] takes place. After a chain of events involving a group of ODSTs attempting to steal [[gold]] from a bank vault,<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''', "[[Dirt]]"</ref> the [[26th Marine Expeditionary Force]] is nearly wiped out, leaving [[the Rookie]] as one of few survivors. Eventually, the UNSC forces cut their losses and fall back to Earth.<ref>[http://www.bungie.net/projects/odst/guide.aspx '''Bungie.net''': ''Halo 3: ODST Field Guide'']</ref>
*The [[Battle of New Jerusalem]] takes place. After a chain of events involving a group of ODSTs attempting to steal [[gold]] from a bank vault,<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''' - ''[[Dirt]]''</ref> the [[26th Marine Expeditionary Force]] is nearly wiped out, leaving [[the Rookie]] as one of few survivors. Eventually, the UNSC forces cut their losses and fall back to Earth.<ref>[http://www.bungie.net/projects/odst/guide.aspx '''Bungie.net''': ''Halo 3: ODST Field Guide'']</ref>


'''September 4th'''
'''September 4'''
*[[Lieutenant Wagner]] returns to [[Earth]] and reports on the evident destruction of [[Reach]] to [[Colonel James Ackerson]], [[Admiral Hood]], and [[Major General]] [[Nicolas Strauss|Strauss]] at [[HIGHCOM Facility Bravo-6]] in Sydney, [[Australia]].
*[[Lieutenant Wagner]] returns to Earth and reports on the evident destruction of Reach to [[Colonel James Ackerson]], [[Admiral Hood]], and [[Major General]] [[Nicolas Strauss|Strauss]] at [[HIGHCOM Facility Bravo-6]] in Sydney, [[Australia]].


'''September 14th'''
'''September 14'''
*Earth's [[Orbital Defense Platform]]s are scheduled to come online.<ref>'''[[Halo: First Strike]]''', ''page 104''</ref>
*Earth's [[Orbital Defense Platform]]s are scheduled to come online.<ref>'''[[Halo: First Strike]]''', ''page 104''</ref>


'''September 19th'''
'''September 19'''
*The {{UNSCShip|Pillar of Autumn}} arrives at [[Installation 04|Alpha Halo]].<ref>'''[[Halo: The Flood]]''', ''page 1''</ref>
*The {{UNSCShip|Pillar of Autumn}} arrives at Alpha Halo.<ref>'''[[Halo: The Flood]]''', page 1</ref>
*The [[Battle of Installation 04]] begins.
*The Battle of Installation 04 begins.
*[[SPARTAN-117]] is awoken from cryo sleep and tasked with preventing [[Cortana]]'s capture by the Covenant.
*SPARTAN-117 is awoken from cryo sleep and tasked with preventing Cortana's capture by the Covenant.
*[[SPARTAN-117]] and [[Cortana]] escaped the ship aboard a [[Bumblebee-class Lifepod]], which later crashed on the ring.
*SPARTAN-117 and Cortana escaped the ship aboard a [[Bumblebee-class Lifepod]], which later crashed on the ring.
*The {{UNSCShip|Pillar of Autumn}} is forced to crash land on the ring. A significant portion of its crew survives to continue the fight on the ground.
*The {{UNSCShip|Pillar of Autumn}} is forced to crash land on the ring. A significant portion of its crew survives to continue the fight on the ground.


*[[Jacob Keyes|Captain Keyes]] and the others in his escape pod are captured by the [[Covenant]]. Only Keyes escapes summary execution, and is taken to the {{Class|CCS|Battlecruiser|}} ''[[Truth and Reconciliation]]''.
*Captain Keyes and the others in his escape pod are captured by the Covenant. Only Keyes escapes summary execution, and is taken to the {{Class|CCS|Battlecruiser|}} ''[[Truth and Reconciliation]]''.


'''September 20th'''
'''September 20'''
[[File:SC new.png|200px|thumb|right|John-117 leading Marines on Installation 04.]]
[[File:SC new.png|200px|thumb|right|John-117 leading Marines on Installation 04.]]
*[[SPARTAN-117]] leads a [[UNSC Marine Corps|Marine]] force to board the ''Truth and Reconciliation''. They recover Keyes and escape aboard a [[Type-25 Troop Carrier|Covenant dropship]]. Keyes orders SPARTAN-117 to find the "[[Silent Cartographer]]", a map room that will reveal the location of the [[Control Room]]. Keyes leaves to lead an assault on a Covenant weapons cache.
*SPARTAN-117 leads a [[UNSC Marine Corps|Marine]] force to board the ''Truth and Reconciliation''. They recover Keyes and escape aboard a [[Type-25 Troop Carrier|Covenant dropship]]. Keyes orders SPARTAN-117 to find the "[[Silent Cartographer]]", a map room that will reveal the location of the [[Control Room]]. Keyes leaves to lead an assault on a Covenant weapons cache.
*Having found the map room and the pertinent information, Cortana directs a [[Echo 419|Pelican]] to take them to the area where the ring's Control Room is. Upon reaching the Control Room, Cortana transfers to the Control Room's computer and directs SPARTAN-117 to stop [[Jacob Keyes|Keyes]] from accessing the 'weapons cache', really a [[Forerunner]] research and quarantine facility.
*Having found the map room and the pertinent information, Cortana directs a [[Echo 419|Pelican]] to take them to the area where the ring's Control Room is. Upon reaching the Control Room, Cortana transfers to the Control Room's computer and directs SPARTAN-117 to stop Keyes from accessing the 'weapons cache', really a [[Forerunner]] research and quarantine facility.
*SPARTAN-117, without [[Cortana]], enters the facility but is unable to locate Keyes. Instead, he discovers the "[[Flood]]" and is forced to retreat. He links up with marines and takes command of the surviving members of Keyes' team and together they fight their way to the extraction point. However, the Spartan is conscripted by the "[[343 Guilty Spark|Monitor of Installation 04]]" and teleported away before he can be evacuated with the surviving members.
*SPARTAN-117, without Cortana, enters the facility but is unable to locate Keyes. Instead, he discovers the "Flood" and is forced to retreat. He links up with marines and takes command of the surviving members of Keyes' team and together they fight their way to the extraction point. However, the Spartan is conscripted by the "[[343 Guilty Spark|Monitor of Installation 04]]" and teleported away before he can be evacuated with the surviving members.


'''September 21st'''
'''September 21'''
*The Monitor takes [[John-117]] to the ring's "[[Library]]" to retrieve the "[[Index]]", a device needed to activate the ring's primary weapon. Having retrieved the Index, the [[Monitor]] teleports the [[Spartan]] back to the Control Room where an irate Cortana confiscates the Index and prevents the ring from firing. SPARTAN-117 and [[Cortana]] flee a now-hostile 343 Guilty Spark and [[Sentinel]]s.
*The Monitor takes [[John-117]] to the ring's "[[Library]]" to retrieve the "[[Index]]", a device needed to activate the ring's primary weapon. Having retrieved the Index, the [[Monitor]] teleports the [[Spartan]] back to the Control Room where an irate Cortana confiscates the Index and prevents the ring from firing. SPARTAN-117 and Cortana flee a now-hostile 343 Guilty Spark and [[Sentinel]]s.
*To forestall the ring from being activated manually, SPARTAN-117 disables the ring's three [[Pulse Generator]]s. This is to buy time to destroy the ring by activating the auto-destruct on the ''[[UNSC Pillar of Autumn|Pillar of Autumn]]''. Only Keyes neural interface can activate the ship's self-destruct, and [[SPARTAN-117]] embarks once more to rescue the captain.
*To forestall the ring from being activated manually, SPARTAN-117 disables the ring's three [[Pulse Generator]]s. This is to buy time to destroy the ring by activating the auto-destruct on the {{UNSCship|Pillar of Autumn}}. Only Keyes neural interface can activate the ship's self-destruct, and SPARTAN-117 embarks once more to rescue the captain.
*Cortana teleports the Spartan to the Flood-overrun Covenant cruiser where [[Jacob Keyes]] is being held. Alas, the pair arrives too late to save Keyes, who has been merged into a [[Brain Form]]. [[SPARTAN-117]] retrieves the neural interface by punching in the former-captain's head. Cortana downloads the necessary codes, and the duo returns to the ''[[UNSC Pillar of Autumn|Pillar of Autumn]]'' on a captured [[Banshee]].
*Cortana teleports the Spartan to the Flood-overrun Covenant cruiser where Jacob Keyes is being held. Alas, the pair arrives too late to save Keyes, who has been merged into a [[Brain Form]]. SPARTAN-117 retrieves the neural interface by punching in the former-captain's head. Cortana downloads the necessary codes, and the duo returns to the {{UNSCship|Pillar of Autumn}} on a captured [[Banshee]].


'''September 22nd'''
'''September 22'''
*[[343 Guilty Spark (Monitor)|343 Guilty Spark]] overrides the auto-destruct codes, forcing SPARTAN-117 to manually destabilize the ship's still-functioning fusion cores. SPARTAN-117 and Cortana then escape the resulting explosion and the fragmentation of the ring aboard a [[Longsword]].
*343 Guilty Spark overrides the auto-destruct codes, forcing SPARTAN-117 to manually destabilize the ship's still-functioning fusion cores. SPARTAN-117 and Cortana then escape the resulting explosion and the fragmentation of the ring aboard a Longsword.
*[[Avery J. Johnson|Staff Sergeant Johnson]], [[Lieutenant Haverson]], [[Warrant Officer Polaski]], [[Corporal Locklear]] also escape the destruction of the ring aboard a Pelican.
*[[Avery J. Johnson|Staff Sergeant Johnson]], [[Lieutenant Haverson]], [[Warrant Officer Polaski]], [[Corporal Locklear]] also escape the destruction of the ring aboard a Pelican.
*SPARTAN-117 and [[Cortana]] rendezvous with Johnson's group in [[Installation 04]]'s debris field. They also recover a set of [[cryotube]]s, one which contains [[SPARTAN-058]].
*SPARTAN-117 and Cortana rendezvous with Johnson's group inInstallation 04's debris field. They also recover a set of [[cryotube]]s, one which contains [[SPARTAN-058]].
*The [[Battle of Installation 04]] ends. [[Pete Stacker (Marine)|Gunnery Sergeant Stacker]] and PFC [[Chips Dubbo]] survive, but it is unknown how they do.
*The Battle of Installation 04 ends. [[Pete Stacker|Gunnery Sergeant Stacker]] and PFC [[Chips Dubbo]] survive, but it is unknown how they do.
*[[Skirmish over Threshold]]: As the [[Longsword]] and [[Pelican]] are not jump capable, the [[UNSC]] survivors assault and capture the ''[[Ascendant Justice]]'', a [[Covenant]] warship and apparently the flagship of the Covenant Fleet sent to [[Installation 04]]. They then set course for [[Reach]].
*[[Skirmish over Threshold]]: As the [[Longsword]] and [[Pelican]] are not jump capable, the UNSC survivors assault and capture the ''[[Ascendant Justice]]'', a Covenant warship and apparently the flagship of the Covenant Fleet sent to Installation 04. They then set course for Reach.
*[[Jersey Morelli]] confronts his mother about having an affair.


'''September 23rd'''
'''September 23'''
*A Time/Date Record Anomaly continues from this point in the narrative, resolved above on Sep 7, 2552.
*A Time/Date Record Anomaly continues from this point in the narrative, resolved above on Sep 7, 2552.


====September's Anomaly====
====September's Anomaly====
After the recovery of a Forerunner device on Reach, the members of an organized resistance comprised of SPARTANs from Reach and survivors of the Battle of Installation 04 are in some sort of time anomaly, causing them not to be in the "correct timeline".<ref>'''[[Halo: First Strike]]'''</ref> What is known is that the events taken place with the possession of the device take place after September 7th.
After the recovery of a Forerunner device on Reach, the members of an organized resistance comprised of SPARTANs from Reach and survivors of the Battle of Installation 04 are in some sort of time anomaly, causing them not to be in the "correct timeline".<ref>'''Halo: First Strike'''</ref> What is known is that the events taken place with the possession of the device take place after September 7.


[[File:Fight_on_Ascendant_Justice.png|thumb|250px|John-117 and Marine survivors fighting on the ''Ascendant Justice''.]]
[[File:Fight on Ascendant Justice.png|thumb|250px|John-117 and Marine survivors fighting on the ''Ascendant Justice''.]]
'''September 7th'''
'''September 7'''
*The Time/Date Record Anomaly of Sept 23, 2552 most likely rejoins the correct timeline.
*The Time/Date Record Anomaly of Sept 23, 2552 most likely rejoins the correct timeline.
*[[Dr. Halsey]] and members of Red Team discover an [[Forerunner Crystal|enigmatic shard]] in a [[Menachite Forerunner Complex|Forerunner installation]] below [[CASTLE Base]]. They are beseiged by Covenant forces who seek to possess the shard.
*Dr. Halsey and members of Red Team discover an [[Forerunner Crystal|enigmatic shard]] in a [[Menachite Forerunner Complex|Forerunner installation]] below CASTLE Base. They are besieged by Covenant forces who seek to possess the shard.
*The remaining [[Spartans]], [[Admiral Whitcomb]], [[Dr. Halsey]], [[Avery Junior Johnson|Sgt. Johnson]], [[Elias Haverson|Lieutenant Haverson]], [[Warrant Officer Polaski]], and [[Corporal Locklear]] jump to Slipspace on board the Covenant/Human hybrid ship ''[[UNSC Gettysburg|Gettysburg]]-[[Ascendant Justice]]'', and discover that the shard seems to have the ability to bend both space and time.
*Dr. Halsey initiates [[Operation: WHITE GLOVE]], destroying CASTLE Base, thus preventing the Covenant forces above from capturing any UNSC and/or Forerunner technology. Halsey and members of [[Red Team]] are protected from the resulting detonation when they hide in the caves beneth the base.
*The remaining Spartans, [[Admiral Whitcomb]], Dr. Halsey, [[Avery Junior Johnson|Sgt. Johnson]], [[Elias Haverson|Lieutenant Haverson]], Warrant Officer Polaski, and Corporal Locklear jump to Slipspace on board the Covenant/Human hybrid ship {{UNSCship|Gettysburg}}-Ascendant Justice'', and discover that the shard seems to have the ability to bend both space and time.


'''September 12th'''
'''September 12'''
*The ''Gettysburg/Ascendant Justice'' arrives for refit and provisioning in [[Eridanus system]] and meets with the rebels under [[Jacob Jiles|Governor Jiles]]. Dr. Halsey sedates Spartan 087, [[Kelly]], and absconds with her on Governor Jiles' personal ship, the {{Class|Chiroptera|Stealth Vessel|}} [[Beatrice]]. Before she goes, she gives the alien artifact to [[Corporal Locklear]], with implicit instructions to destroy it.
*The ''Gettysburg/Ascendant Justice'' arrives for refit and provisioning in [[Eridanus system]] and meets with the rebels under [[Jacob Jiles|Governor Jiles]]. Dr. Halsey sedates Spartan 087, [[Kelly]], and absconds with her on Governor Jiles' personal ship, the {{Class|Chiroptera|Stealth Vessel|}} [[Beatrice]]. Before she goes, she gives the alien artifact to Corporal Locklear, with implicit instructions to destroy it.


'''September 13th'''
'''September 13'''
*UNSC forces aboard the ''Gettysburg/Ascendant Justice'' win a crucial victory at the [[Operation: FIRST STRIKE|Battle of the ''Unyielding Hierophant'']]. [[SPARTAN-093]], [[Lieutenant Haverson]] of ONI and Vice Admiral Whitcomb are killed. The survivors, now aboard the singular {{UNSCShip|Gettysburg}} and with a captured Covenant slipspace drive, depart for [[Earth]] to warn of the impending Covenant invasion.
*UNSC forces aboard the ''Gettysburg/Ascendant Justice'' win a crucial victory at the [[Operation: FIRST STRIKE|Battle of the ''Unyielding Hierophant'']]. [[SPARTAN-093]], Lieutenant Haverson of ONI and Vice Admiral Whitcomb are killed. The survivors, now aboard the singular {{UNSCShip|Gettysburg}} and with a captured Covenant slipspace drive, depart for Earth to warn of the impending Covenant invasion.


===October===
===October===
'''Unknown Date'''
'''Unknown Date'''
*An Edict from the Office of the High Prophet of Truth orders that in the virtue of the Jiralhanae, all Sangheili posted with the [[Fleet of Profound Solitude]], the [[Fleet of Tranquil Composure]], and the [[Fleet of Inner Knowledge]] to be completely replaced by Jiralhanae. Each removed Sangheili to be assigned other duties. In celebration, all imprisoned or criminal Jiralhanae were released, rehabilitated, and pardoned.<ref>'''Halo Wars''': ''Halo Timeline''</ref>
*An Edict from the Office of the High Prophet of Truth orders that in the virtue of the Jiralhanae, all Sangheili posted with the [[Fleet of Profound Solitude]], the [[Fleet of Tranquil Composure]], and the [[Fleet of Inner Knowledge]] to be completely replaced by Jiralhanae. Each removed Sangheili to be assigned other duties. In celebration, all imprisoned or criminal Jiralhanae were released, rehabilitated, and pardoned.<ref>'''Halo Wars''': ''Halo Timeline''</ref>
*The {{UNSCShip|Red Horse}} is sent to Installation 04's debris field in the Soell System to scout the area for survivors. They detect the prison ship {{UNSCShip|Mona Lisa}} and deploy Marines into the ship. Soon after, it is revealed that the ship is infested by the Flood and was used by the Office of Naval Intelligence as a laboratory to test the parasite on prisoners. The infestation is contained as the ''Red Horse'' unleashes a [[Shiva-class Nuclear Missile]] on the ''Mona Lisa'', destroying it.<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', "The Mona Lisa"</ref>
*The {{UNSCShip|Red Horse}} is sent to Installation 04's debris field in the Soell System to scout the area for survivors. They detect the prison ship {{UNSCShip|Mona Lisa}} and deploy Marines into the ship. Soon after, it is revealed that the ship is infested by the Flood and was used by the Office of Naval Intelligence as a laboratory to test the parasite on prisoners. The infestation is contained as the ''Red Horse'' unleashes a [[Shiva-class Nuclear Missile]] on the ''Mona Lisa'', destroying it.<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''' - ''The Mona Lisa''</ref>


'''October 20th'''
'''October 20'''
[[File:Battle of New Mombasa.jpg|200px|thumb|right|The Battle of Earth at Mombasa.]]
[[File:Battle of New Mombasa.jpg|200px|thumb|right|The Battle of Earth at Mombasa.]]
*SPARTAN-117 is outfitted with the [[MJOLNIR Powered Assault Armor/Mark VI|MJOLNIR Mk. VI]] aboard [[Cairo Station]].
*SPARTAN-117 is outfitted with the [[MJOLNIR Powered Assault Armor/Mark VI|MJOLNIR Mk. VI]] aboard [[Cairo Station]].
*The [[Thel 'Vadam|Fleet Commander of Particular Justice]] is deemed a [[Heretic]] by the Covenant [[High Council]] and sentenced to death.
*The [[Thel 'Vadam|Fleet Commander of Particular Justice]] is deemed a [[Heretic]] by the Covenant [[High Council]] and sentenced to death.
*SPARTAN-117 and Staff Sergeant (now promoted to Sergeant Major) Johnson are decorated at a ceremony aboard Cairo Station. [[Jacob Keyes|Captain Keyes]] is awarded posthumously and the decoration is entrusted to [[Miranda Keyes|Commander Keyes]].
*SPARTAN-117 and Staff Sergeant (now promoted to Sergeant Major) Johnson are decorated at a ceremony aboard Cairo Station. Captain Keyes is awarded posthumously and the decoration is entrusted to [[Miranda Keyes|Lieutenant Commander Keyes]].
*The [[Battle of Earth]] begins.
*The Battle of Earth begins.
*The High Prophet of Regret's fleet arrives at Earth, not expecting any human presence. The vastly outnumbered Covenant force attacks without seeking support from other Covenant forces.
*The High Prophet of Regret's fleet arrives at Earth, not expecting any human presence. The vastly outnumbered Covenant force attacks without seeking support from other Covenant forces.
*SPARTAN-117 foils a Covenant attempt to demolish Cairo Station and commandeers the Covenant [[Covenant Bomb|bomb]] to destroy an assault carrier.
*SPARTAN-117 foils a Covenant attempt to demolish Cairo Station and commandeers the Covenant [[Covenant Bomb|bomb]] to destroy an assault carrier.
*The [[High Prophet of Regret]]'s [[Regret's Carrier|assault carrier]] breaks through the [[Orbital Defense Platform|orbital defenses]] and initiates a [[Battle of Mombasa|ground assault]] on [[New Mombasa]] and the [[Mombasa|surrounding area]].
*The [[High Prophet of Regret]]'s [[Regret's Carrier|assault carrier]] breaks through the orbital defenses and initiates a [[Battle of Mombasa|ground assault]] on [[New Mombasa]] and the [[Mombasa|surrounding area]].
*[[Unnamed Shock Trooper Squad|A squad of ODSTs]], consisting of Corporal Taylor "Dutch" Miles, Lance Corporal Kojo "Romeo" Agu, [[Michael Crespo|PFC Michael "Mickey" Crespo]], and The Rookie, led by [[Veronica Dare|Captain Veronica Dare]] and [[Edward Buck|Gunnery Sergeant Edward Buck]], launch into New Mombassa from the {{UNSCShip|Say My Name}}.
*SPARTAN-117 deploys to New Mombasa in an attempt to capture the High Prophet of Regret. Before this can happen, the assault carrier initiates a slipspace jump within the city, escaping Earth and severely damaging the city in the process. The {{UNSCShip|In Amber Clad}}, with SPARTAN-117 aboard, successfully pursues the carrier through slipspace.
*SPARTAN-117 deploys to New Mombasa in an attempt to capture the High Prophet of Regret. Before this can happen, the assault carrier initiates a slipspace jump within the city, escaping Earth and severely damaging the city in the process. The {{UNSCShip|In Amber Clad}}, with SPARTAN-117 aboard, successfully pursues the carrier through slipspace.
*Immediately after Regret's retreat, an additional [[Jiralhanae]]-led Covenant occupation force is inserted to New Mombasa, as a part of the [[Prophet of Truth]]'s plan to eventually replace the [[Sangheili]] with the Brutes as the Covenant's primary warrior race. For the rest of the day, UNSC and Covenant forces battle for control of the city. Meanwhile, the Covenant fleet begins the process of uncovering the [[Installation 00|Ark]] [[Portal]].
*Immediately after Regret's retreat, an additional [[Jiralhanae]]-led Covenant occupation force is inserted to New Mombasa, as a part of the Prophet of Truth's plan to eventually replace the Sangheili with the Brutes as the Covenant's primary warrior race. For the rest of the day, UNSC and Covenant forces battle for control of the city. Meanwhile, the Covenant fleet begins the process of uncovering the Ark [[Portal]].
*The [[Thel 'Vadam|former Fleet Commander of Particular Justice]] is made the [[Arbiter]] by the [[Hierarchs|High Prophets]] of [[Prophet of Truth|Truth]] and [[Prophet of Mercy|Mercy]].
*The [[ONI Alpha Site]] in New Mombassa is destroyed by the combined forces of the UNSC and the [[New Mombasa Police Department]], led by Corporal Miles and and PFC Crespo, in order to prevent the Covenant from accessing it. The explosion inadvertantly awakens a large [[Yanme'e|Drone]] hive in the tunnels below the base.
*The Arbiter destroys a [[Heretics|heretic]] group and 'recovers' the [[343 Guilty Spark|Oracle]].
*The former Fleet Commander of Particular Justice is made the [[Arbiter]] by the High Prophets of Truth and Mercy.
*The Arbiter destroys a [[Heretics|heretic]] group and 'recovers' the Oracle during the [[Battle of the Gas Mine]].
 


'''October 21st'''
'''October 21'''
*The Battle of Mombasa ends with a Covenant victory.
*The Battle of Mombasa ends with a Covenant victory.
*In the dawn, Covenant reinforcements sent by the Prophet of Truth continue arriving at Earth to uncover the Portal.
*In the dawn, Covenant reinforcements sent by the Prophet of Truth continue arriving at Earth to uncover the Portal.
*[[Dare's Shock Trooper Squad]] escapes New Mombasa as the city, along with its surroundings are [[Glassing|glassed]] by the Covenant excavation fleet.
*[[Dare's Shock Trooper Squad]] escapes New Mombasa as the city, along with its surroundings are [[Glassing|glassed]] by the Covenant excavation fleet.


'''October 20th through November 2nd'''
'''October 20 through November 2'''
*The Spartan-II [[Blue Team]] is deployed to defend Earth during the two weeks that follow the initial Covenant invasion. They participate in numerous combat missions on and around Earth, including [[Battle of Ross Island]] in the [[Antarctica]] and an underwater operation in the [[Yucatan Peninsula]].
*The Spartan-II Blue Team is deployed to defend Earth during the two weeks that follow the initial Covenant invasion. They participate in numerous combat missions on and around Earth, including [[Battle of Ross Island]] in the [[Antarctica]] and an underwater operation in the [[Yucatan Peninsula]].


'''October 31st'''
'''October 31'''
*The [[Battle of Onyx]] begins.
*The [[Battle of Onyx]] begins.
*The standby signal rouse the [[Sentinels]] of [[Onyx]], who destroy the UNSC base on the world.
*The standby signal rouse the [[Sentinels]] of [[Onyx]], who destroy the UNSC base on the world.
* Kurt, Mendez, and some Spartans battle to survive the Sentinel's onslaught.
*[[SPARTAN-III]] [[Gamma Company]] [[Team Gladius]] is totally wiped out by the Sentinels. [[Team Katana]] is forced into [[Zone 67]], and [[Team Saber]] loses contact with [[Camp Currahee]].
*Kurt-051, [[Franklin Mendez|SPCO Franklin Mendez]] and Petty Officers [[Tom-B292]] and [[Lucy-B091]] begin to form a resistance against the Sentinels.
*The {{UNSCShip|Agincourt}}, in high orbit above Onyx, is destroyed by Sentinels.
*Chief Mendez declares emergency code [[Bloody Arrow]] over the UNSC [[E-BAND]].


===November===
===November===
'''November 2nd'''
'''November 2'''
*The [[Battle of Installation 05]] begins.
*The [[Battle of Installation 05]] begins.
*The UNSC ''In Amber Clad'' arrives at [[Delta Halo]], following the High Prophet of Regret's assault carrier. SPARTAN-117, aided by [[ODST]]s and [[marine]]s, pursue the High Prophet to a Forerunner temple and assassinate him. However, orbital bombardment from the escorting fleets of the newly arrived [[High Charity]] destroys the temple. SPARTAN-117 is thrown into a lake and captured by [[Gravemind]].
*The UNSC ''In Amber Clad'' arrives at [[Delta Halo]], following the High Prophet of Regrets assault carrier. SPARTAN-117, aided by ODSTs and [[marine]]s, pursue the High Prophet to a Forerunner temple and assassinate him. However, orbital bombardment from the escorting fleets of the newly arrived [[High Charity]] destroys the temple. SPARTAN-117 is thrown into a lake and captured by [[Gravemind]].


'''November 3rd'''
'''November 3'''
*The [[UNSC Dusk|UNSC ''Dusk'']] arrives at Delta Halo and witnesses the final stages of the [[Battle of Installation 05]]. She retreats to Earth via a [[Slipspace Wake]] caused by the Forerunner ship.
*The [[Great Schism]] begins.
*[[Dr. Halsey]] and [[SPARTAN-087]] arrive at Onyx and are trapped along with the rest of the human survivors. Halsey sends a distress signal piggybacked on Cortana's October 28 signal.
*The [[UNSC Dusk|UNSC ''Dusk'']] arrives at Delta Halo and witnesses the final stages of the Battle of Installation 05. She retreats to Earth via a [[Slipspace Wake]] caused by the Forerunner ship.
*The [[Battle of Havana]] is fought. Having received Halsey's signal, [[SPARTAN-043]], [[SPARTAN-058]], and [[SPARTAN-104]] redeploy from Earth to Onyx aboard a captured Covenant ship. They rendezvous with Halsey. The UNSC survivors are forced to retreat underground as a newly arrived Covenant fleet beings landing troops.
*Dr. Halsey and [[SPARTAN-087]] arrive at Onyx and are trapped along with the rest of the human survivors. Halsey sends a distress signal piggybacked on Cortana's October 28 signal.
*The [[Battle of Havana]] is fought. Having received Halsey's signal, [[SPARTAN-043]], SPARTAN-058, and [[SPARTAN-104]] redeploy from Earth to Onyx aboard a captured Covenant ship. They rendezvous with Halsey. The UNSC survivors are forced to retreat underground as a newly arrived Covenant fleet beings landing troops.
*[[Voro 'Mantakree]] is promoted to [[Fleet Master]] by [[Imperial Admiral]] [[Xytan 'Jar Wattinree]], and is given the mission to intercept the SPARTANs heading for Onyx and to retreieve the Forerunner technologies said to be there.
*Danforth Whitcomb's [[NOVA Bomb]] detonates onboard the Covenant supercarrier ''[[Sublime Transcendence]]'', in orbit above the Sangheili outpost world [[Joyous Exultation]], destroying every ship in the vicinity, and also scorching a quarter of Joyous Exultation and compleatly vaporizing the nearby moon [[Malhiem]].
*The ''Dusk'' arrives at Earth after mere hours. Upon arrival, she is re-assigned to Battlegroup Stalingrad. The group jump to Onyx via the captured Covenant Ships Slipspace wake.
*The ''Dusk'' arrives at Earth after mere hours. Upon arrival, she is re-assigned to Battlegroup Stalingrad. The group jump to Onyx via the captured Covenant Ships Slipspace wake.
*[[Blue Team]] arrives at Onyx aboard the captured Covenant destroyer ''[[Bloodied Spirit]]'', and links up with Kurt-051, Kelly-087, Dr. Halsey, Chief Mendez, and the SPARTAN-III's. They procede to push foreward into Zone 67.
*[[Battlegroup Stalingrad]] arrives at Onyx to retrieve the survivors, but is unsuccessful due to the Covenant presence. The UNSC battlegroup is destroyed.
*[[Battlegroup Stalingrad]] arrives at Onyx to retrieve the survivors, but is unsuccessful due to the Covenant presence. The UNSC battlegroup is destroyed.
*Kurt-051 and his forces procede to destroy the Sentinel factory in Onyx's polar region and retrieve Team Katana, cryogenically frozen in [[Slipspace Field Pod]]s.
*Onyx is found to be an artificial [[Shield World]] built by the Forerunners.
*Onyx is found to be an artificial [[Shield World]] built by the Forerunners.
*[[Kurt-051]] dies after detonating 2 FENRIS warheads inside the Onyx [[Shield World]] structure.
*[[Fred-104]] is promoted to [[Lieutenant, Junior Grade]] by Kurt.
*Halsey and the other survivors hold off pursuing Covenant troops long enough to flee to the safety of the [[Shield World]] and seal the entrance.
*[[Kurt-051]] dies after detonating 2 FENRIS warheads inside the Onyx Shield World structure.
*[[Sentinels]] annihilate the remaining Covenant forces as Onyx's artificial landmass disintegrates.
*Halsey and the other survivors hold off pursuing Covenant troops long enough to flee to the safety of the Shield World and seal the entrance.
*The [[Battle of Onyx]] ends.
*Sentinels annihilate the remaining Covenant forces as Onyx's artificial landmass disintegrates.
*The Arbiter is sent to [[Delta Halo]] to retrieve that installation's [[The Index|Index]]. The Arbiter is successful, but is then betrayed by [[Tartarus]], who casts the Arbiter into the depths of the ringworld. The Arbiter is subsequently captured by [[Gravemind]].
*The Battle of Onyx ends.
*[[Gravemind]] sends [[John-117]] and the Arbiter to secure the Index and prevent the installation from being activated. [[SPARTAN-117]] is teleported to [[High Charity]] while the Arbiter is teleported close to the [[Control Room]].  
*The Arbiter is sent to Delta Halo to retrieve that installation's [[The Index|Index]]. The Arbiter is successful, but is then betrayed by [[Tartarus]], who casts the Arbiter into the depths of the ringworld. The Arbiter is subsequently captured by Gravemind.
*The [[Prophet of Truth|High Prophet of Truth]] transfers command of the [[Covenant Military]] to the Jiralhanae, and Tartarus orders them to wipe out the Sangheili. The [[Great Schism]] begins with the San 'Shyuum/Jiralhanae lead faction supported by the Kig-yar, Yanmm'e, and some Unggoy and Mgalekgolo, with the Sangheili supported by some Unggoy and Mgalekgolo.
*Gravemind sends John-117 and the Arbiter to secure the Index and prevent the installation from being activated. SPARTAN-117 is teleported to High Charity while the Arbiter is teleported close to the Control Room. Both are aided by the chaos of the Covenant civil war.
*The Gravemind manages to take control of the {{UNSCShip|In Amber Clad}} uses it to infest [[High Charity]], which attack the [[Prophet of Mercy|High Prophet of Mercy]], who is abandoned by the High Prophet of Truth. SPARTAN-117 is unable to stop Tartarus from leaving with the Index. Instead, on the advice of [[Cortana]], the Spartan stows away aboard the [[Forerunner Dreadnought]] that is carrying the High Prophet of Truth to Earth. Cortana remains behind to ensure the destruction of Installation 05, should that become necessary.
*SPARTAN-117 is unable to prevent the Index from leaving High Charity with Tartarus. Instead, on the advice of Cortana, the Spartan stows away aboard the [[Forerunner Dreadnought]] that is carrying the [[High Prophet of Truth]] to Earth. Cortana remains behind to ensure the destruction of Installation 05, should that become necessary.


'''November 3rd through November 7th'''
'''November 3 through November 7'''
[[File:H2 High Charity Orbital Battle.jpg|200px|thumb|right|Loyalist and Separatist ships fighting over High Charity.]]
[[File:H2 High Charity Orbital Battle.jpg|200px|thumb|right|Loyalist and Separatist ships fighting over High Charity.]]
*Cortana sends a slipspace message to Earth informing them that SPARTAN-117 is en route.
*Cortana sends a slipspace message to Earth informing them that SPARTAN-117 is en route.
*The Arbiter reaches the Control Room but is unable to prevent Tartarus from activating the ring. With the help of humans and the [[Elites]], the Arbiter kills Tarturus. This allows Commander Keyes to physically remove the Index from the [[The Core|Core]], temporarily interrupting the firing sequence.
*The Arbiter reaches the Control Room but is unable to prevent Tartarus from activating the ring. With the help of humans and the [[Elites]], the Arbiter kills Tarturus. This allows Commander Keyes to physically remove the Index from the [[The Core|Core]], temporarily interrupting the firing sequence.
*Due to the interruption, [[Installation 05]] automatically sends a signal to all other Forerunner installations in the galaxy, activating and placing them in standby mode.
*Due to the interruption, Installation 05 automatically sends a signal to all other Forerunner installations in the galaxy, activating and placing them in standby mode.


'''November 8th'''
'''November 8'''
*The [[Prophet of Truth]] arrives in the [[Sol System]] aboard the [[Forerunner Dreadnought]], and proceeds on course towards Earth at near-relativistic speeds.<ref name="timeline">[http://www.bungie.net/News/content.aspx?type=topnews&cid=16989 '''Bungie.net''': ''Bungie Weekly Update: 01/23/09'']</ref>
*The Prophet of Truth arrives in the [[Sol System]] aboard the Forerunner Dreadnought, and proceeds on course towards Earth at near-relativistic speeds.<ref name="timeline">[http://www.bungie.net/News/content.aspx?type=topnews&cid=16989 '''Bungie.net''': ''Bungie Weekly Update: 01/23/09'']</ref>


'''November 8th through November 17th'''
'''November 8 through November 17'''
*Before the Forerunner Dreadnought lands to Earth, Covenant Loyalist forces assault the human city of [[Cleveland]], [[Ohio]] in the [[United Republic of North America]] on Earth. The Loyalists look for the [[Key of Osanalan]], a mysterious [[Forerunner]] device related to the [[Halo Array|Halo Installations]], which eventually turns out to be nonexistent.
*[[Battle of Mare Erythraeum|The Battle of Mare Erythraeum]] takes place on [[Mars]], resulting in a victory for the Covenant Loyalists. Following the battle, Colonel James Ackerson, leader of the UNSC forces on Mars, is taken hostage and interrogated by the Jiralhanae Commander [[Lepidus]] onboard the Covenant cruiser ''[[Triumphant Declaration]]'', who tells them of a Forerunner device linked to the [[Halo Array]] known as the [[Key of Osanalan]], and that it can be found in [[Cleveland]], [[Ohio]].
*[[Battle of Cleveland]]: The Covenant Loyalist Army invades Cleveland via the cruiser ''[[Harbinger of Piety]]''. The Loyalist forces, under the direction of the [[Minister of Inquisition]], are searching for the whereabouts of the Key of Osanalan (In reality, the Key of Osanalan was made up as a ploy by James Ackerson to prevent Cleveland from being glassed and to save the life of his brother [[Ruwan Ackerson|Ruwan]].) When Ruwan learns the reason the Covenant are invading, he devises a plan with [[Twyker|Sergeant Twyker]], involving being injected with organic tracking material. Ruwan confronts Lepidus at Chagrin Falls and tells him that ''he'' is the Key of Osanalan. Ruwan is taken onboard the ''Harbinger of Piety'' to meet with the Minister of Inquisition, who vows to spare Earth in exchange for Ruwan's knowledge. Ruwan plays along until the Prophet informed him that he knew of the organic tracking material, believing it to be a rescue beacon. In reality, it was a tracking vector. With his last words, he told the Prophet to "kiss [his] ass" right before [[Nassau Station]] used its [[Magnetic Accelerator Cannon]] to destroy the ''Harbinger of Piety''.
*Lepidus realizes that the Key of Osanalan does not exist, and returns to the ''Triumphant Declaration'' to confront Colonel Ackerson about this deception. Ackerson mocked the Brute Chieftain, saying that his belief in the Key of Osanalan was just one example of how their pompous arrogance would cost them the war. Moments later, Ackerson is beheaded by Lepidus.
*[[Sergeant Major Johnson]] arrives back on Earth and gets clearance from [[Lord Hood]] to question [[Vergil]] about the artifact the High Prophet of Truth is digging up near Voi.
*[[Sergeant Major Johnson]] arrives back on Earth and gets clearance from [[Lord Hood]] to question [[Vergil]] about the artifact the High Prophet of Truth is digging up near Voi.


'''November 17th'''
'''November 17'''
[[File:S117returnstoEarth2552.jpg|thumb|John-117 and the Forerunner Dreadnought entering Earth's atmosphere.]]
[[File:S117returnstoEarth2552.jpg|thumb|John-117 and the Forerunner Dreadnought entering Earth's atmosphere.]]
*The Forerunner Dreadnought enters [[Earth]]'s atmosphere. Onboard is [[Master Chief Petty Officer]] [[John-117]], who ejects from the ship, using a hatch as a heat shield upon re-entry. Meanwhile, [[Battle of Sector Six]] takes place at [[Pawa]], [[Afghanistan]]. There, numerous Marines of the [[2nd Orbital Drop Shock Trooper Battalion|2nd ODST Battalion]] track SPARTAN-117's descent. SPARTAN-117 eventually lands in the [[East African Protectorate|East African]] jungle near [[Mount Kilimanjaro]], going unconscious for hours.<ref name="timeline"/>
*The Forerunner Dreadnought enters Earth's atmosphere. On-board is [[Master Chief Petty Officer]] John-117, who ejects from the ship, using a hatch as a heat shield upon re-entry. Meanwhile, [[Battle of Sector Six]] takes place at [[Pawa]], [[Afghanistan]]. There, numerous Marines of the [[2nd Orbital Drop Shock Trooper Battalion|2nd ODST Battalion]] track SPARTAN-117's descent. SPARTAN-117 eventually lands in the [[East African Protectorate|East African]] jungle near [[Mount Kilimanjaro]], going unconscious for hours.<ref name="timeline"/>
*The [[Prophet of Truth]]'s Dreadnought lands in the middle of [[The Artifact]] near [[Voi]], [[Kenya]]. During the last few weeks, Truth's fleet of twenty-odd {{Class|CCS|Battlecruiser}}s and two [[Assault Carriers]] have almost entirely uncovered the artifact and occupied the entire region surrounding it.
*The Prophet of Truth's Dreadnought lands in the middle of [[The Artifact]] near [[Voi]], [[Kenya]]. During the last few weeks, Truth's fleet of twenty-odd {{Class|CCS|Battlecruiser}}s and two [[Assault Carriers]] have almost entirely uncovered the artifact and occupied the entire region surrounding it.
*SPARTAN-117 leads a UNSC counterattack to regain lost UNSC ground, retaking a jungle near [[Africa|Mount Kilimanjaro]] and securing the area around [[Crow's Nest (Base)|Crow's Nest]], an underground facility used by the UNSC Defense Force to coordinate local Army, Navy, and Marine forces. The UNSC organize a small strike force led by SPARTAN-117 to attack the Covenant Loyalist-held [[Tsavo Highway (Location)|Tsavo Highway]], and thus have a platform for a strike at Voi.
*SPARTAN-117 leads a UNSC counterattack to regain lost UNSC ground, retaking a jungle near [[Africa|Mount Kilimanjaro]] and securing the area around [[Crow's Nest (Base)|Crow's Nest]], an underground facility used by the UNSC Defense Force to coordinate local Army, Navy, and Marine forces. The UNSC organize a small strike force led by SPARTAN-117 to attack the Covenant Loyalist-held [[Tsavo Highway]], and thus have a platform for a strike at Voi.
*The UNSC Marine Corps is able to retake the Tsavo Highway, and it serves for a staging ground for the battalion that would retake Voi. The UNSC forces stationed already at Voi have suffered severe casualties, with only pockets of Marines drawn in a scattered last defense against numerically superior and vehicle-supported Loyalist forces.
*The UNSC Marine Corps is able to retake the Tsavo Highway, and it serves for a staging ground for the battalion that would retake Voi. The UNSC forces stationed already at Voi have suffered severe casualties, with only pockets of Marines drawn in a scattered last defense against numerically superior and vehicle-supported Loyalist forces.
*[[Fleet Admiral]] [[Terrence Hood|Sir Terrence Hood]] declares that it is imperative that SPARTAN-117's attack force retake Voi. Lord Hood's plan is that he will launch a low-level aerial strike on Truth's fleet above the Forerunner artifact, and prevent him from activating the presumed Ark. However, a Loyalist anti-aircraft emplacement stationed at Voi is preventing Hood's fleet from advancing; SPARTAN-117 is to retake Voi and destroy the anti-aircraft emplacement to allow Hood to attack Truth's fleet, and prevent him from activating the Ark.
*[[Fleet Admiral]] [[Terrence Hood|Sir Terrence Hood]] declares that it is imperative that SPARTAN-117's attack force retake Voi. Lord Hood's plan is that he will launch a low-level aerial strike on Truth's fleet above the Forerunner artifact, and prevent him from activating the presumed Ark. However, a Loyalist anti-aircraft emplacement stationed at Voi is preventing Hood's fleet from advancing; SPARTAN-117 is to retake Voi and destroy the anti-aircraft emplacement to allow Hood to attack Truth's fleet, and prevent him from activating the Ark.
[[File:H3 TheArk Opening.jpg|200px|thumb|right|The Ark Portal on Earth activates.]]
[[File:H3 TheArk Opening.jpg|200px|thumb|right|The Ark Portal on Earth activates.]]
*They later defeat the AA guns, opening up a pocket in the Loyalist Defenses for the [[UNSC Home Fleet|Home Fleet]] to come in and engage Truth's forces. They are unsuccessful in damaging the Dreadnought, and it escapes through the Portal. At the same moment, a [[Unnamed Flood-Captured Battlecruiser|Flood-controlled ship]] slips in, crashing in Voi.
*They later defeat the AA guns, opening up a pocket in the Loyalist Defenses for the [[UNSC Home Fleet|Home Fleet]] to come in and engage Truth's forces. They are unsuccessful in damaging the Dreadnought, and it escapes through the Portal. At the same moment, a [[Unnamed Flood-Captured Battlecruiser|Flood-controlled ship]] slips in, crashing in Voi.
*[[Miranda Keyes|Commander Miranda Keyes]] orders her troops to fight to the core of the Flood Battlecruiser and overload its reactors, destroying the ship and the town and any Flood along with it. The [[Fleet of Retribution]], having followed the Flood infected ship from their blockade at [[Installation 05]] to its arrival at Earth, begins to drop forces to push towards the ship, seeking something that lay within it. It isn't until they come back into [[Traxus Factory Complex 09|Traxus Facility]] that the Sangheili tell the [[UNSC]] that [[Cortana]], the AI formally attached to the Spartan-IIs, the {{UNSCShip|Pillar of Autumn}}, and companion of John-117, is supposedly on the downed ship.
*Lieutenant Commander Miranda Keyes orders her troops to fight to the core of the Flood Battlecruiser and overload its reactors, destroying the ship and the town and any Flood along with it. The [[Fleet of Retribution]], having followed the Flood infected ship from their blockade at Installation 05 to its arrival at Earth, begins to drop forces to push towards the ship, seeking something that lay within it. It isn't until they come back into [[Traxus Factory Complex 09|Traxus Facility]] that the Sangheili tell the UNSC that Cortana, the AI formally attached to the Spartan-IIs, the {{UNSCShip|Pillar of Autumn}}, and companion of John-117, is supposedly on the downed ship.
*The joint UNSC/Separatist force press on to the crash site and eventually break through, fighting past hordes of [[Flood]]. With the remaining forces giving cover to the Chief, he enters its Flood created carcass and retrieves what is believed to be Cortana. After the ground forces are evacuated safely the Elites begin to glass the immediate area, annihilating the Flood and eliminating any chance of further Flood infection, effectively ending the [[Battle of Voi]].
*The joint UNSC/Separatist force press on to the crash site and eventually break through, fighting past hordes of Flood. With the remaining forces giving cover to the Chief, he enters its Flood created carcass and, with surprise assistance from 343 Guilty Spark, the former Monitor of Installation 04, retrieves what is believed to be Cortana. After the ground forces are evacuated safely the Elites begin to glass the immediate area, annihilating the Flood and eliminating any chance of further Flood infection, effectively ending the [[Battle of Voi]].


===Late November through December===
===Late November through December===
The end of 2552 saw the bloodiest period of the [[Human-Covenant War|Great War]] and the beginning of the end. The Prophet of Truth was killed in the later months along with a sizable Covenant armada, leaving the Covenant forces crippled and leaderless as well as the full destruction of [[Gravemind]] and its [[Flood]] forces.
The end of 2552 saw the bloodiest period of the Great War and the beginning of the end. The Prophet of Truth was killed in the later months along with a sizable Covenant armada, leaving the Covenant forces crippled and leaderless as well as the full destruction of Gravemind and its Flood forces.


====Battle of Installation 00====
====Battle of Installation 00====
{{main|Battle of Installation 00}}
{{main|Battle of Installation 00}}
[[File:H3 E3 Orbital Battle.jpg|200px|thumb|right|A battle rages above Installation 00.]]
[[File:H3 E3 Orbital Battle.jpg|200px|thumb|right|A battle rages above Installation 00.]]
*The [[Prophet of Truth]], having successfully activated the artifact in Kenya, left [[Earth]] through a Slipspace portal to the [[Ark]], a [[Forerunner]] structure that could be used to fire all of the Halo installations at once.
*The Prophet of Truth, having successfully activated the artifact in Kenya, left Earth through a Slipspace portal to the [[Ark]], a Forerunner structure that could be used to fire all of the Halo installations at once.
*Despite [[Lord Hood]]'s urging, [[Commander Keyes]] took ships from the Home Fleet with a small fleet of [[Separatist]] cruisers led by the carrier ''[[Shadow of Intent]]'' and proceeded through the Slipspace portal and arrived at the [[Ark]].
*After returning to the Sangheili cruiser ''Shadow of Intent'' with a construct believed to be Cortana, SPARTAN-117 discovers that it is not Cortana after all, but a looped message from her. It contains vital information nontheless: the message states that the Gravemind has firmly entrenched itself and the Flood on the Ark, but that there is also a way to destroy it without lighting the Halo rings.
*The Separatists on arrival immediately engaged the Loyalist fleet stationed to protect the Prophet while the ''[[Forward Unto Dawn]]'' deployed [[ODST|Marine Shock Troopers]] to locate Truth. Despite being outnumbered 3-to-1 in space, the Separatist fleet made short work of the Loyalist space forces, likely due to the Elites' superior tactical skills. The Covenant Loyalist Fleet had been destroyed and the only Loyalists left alive were Truth and his forces on the Ark. [[343 Guilty Spark (Monitor)|343 Guilty Spark]], now working with the UNSC-Separatist Alliance, led SPARTAN-117 and the Arbiter to the Ark's Cartographer where they pinpointed the Prophet's location. By then Truth had already holed himself in a secure facility near the core of the Ark and had activated a large barrier around the entire core to ward off the attacking forces.
*Despite Lord Hood's urging, [[Commander Keyes]], along with The Master Chief, Arbiter Thel 'Vadam, [[Shipmaster]] [[Rtas 'Vadum]], and 343 Guilty Spark, took ships from the Home Fleet with a small fleet of [[Separatist]] cruisers led by the carrier ''[[Shadow of Intent]]'' and proceeded through the Slipspace portal and arrived at the Ark.
*The UNSC ground forces, along with Separatist reinforcements, assaulted three emitter pylons that powered a small section of the barrier. When the defending forces were eliminated and the pylons shut down, the ''Shadow of Intent'' began its attack on Truth. At the same time the former Covenant city ship ''[[High Charity]]'' arrived from slipspace and crashed on the Ark. Debris, spread from the city-ship, heavily damaged the ''Shadow of Intent'' and helped spread a new Flood infestation on the Ark as a means to stop Truth and to be safe from the Halo activation array. Without any heavy support, SPARTAN-117 and the Arbiter personally attacked the facility where Truth was to activate the Halo installations.
*The Separatists on arrival immediately engaged the Loyalist fleet stationed to protect the Prophet while the {{UNSCship|Forward Unto Dawn}} deployed Marine Shock Troopers to locate Truth. Despite being outnumbered 3-to-1 in space, the Separatist fleet made short work of the Loyalist space forces, likely due to the Elites' superior tactical skills. The Covenant Loyalist Fleet had been destroyed and the only Loyalists left alive were Truth and his forces on the Ark. 343 Guilty Spark, now working with the UNSC-Separatist Alliance, led SPARTAN-117 and the Arbiter to the Ark's Cartographer where they pinpointed the Prophet's location. By then Truth had already holed himself in a secure facility near the core of the Ark and had activated a large barrier around the entire core to ward off the attacking forces.
*Sergeant Major Johnson, who had disappeared during the assault on the towers, was in fact captured by Truth's forces and was being tortured into pressing the final switch to activate the other Halos, as fail-safes within the structure prevented anyone other than a Forerunner or a Reclaimer to do so. With [[SPARTAN-117]] and the Arbiter too far away to stop Truth, Commander Keyes grabbed a Pelican dropship and crashed into the facility to rescue Johnson, but was killed soon thereafter by Truth himself. The Gravemind dispatched Flood forces to assist SPARTAN-117 and the Arbiter in order to prevent the activation of the Halo Array system; their support enabled the Master Chief and the Arbiter to reach Truth in time. The Arbiter personally killed Truth with his sword. However, the Gravemind betrayed the two of them after knocking them out of Keyes' Pelican,(then piloted by Johnson and also carrying the Commander's body), thwarting their plan of escape and forcing SPARTAN-117 and the Arbiter to fight their way outside.
*The UNSC ground forces, along with Separatist reinforcements, assaulted three emitter pylons that powered a small section of the barrier. When the defending forces were eliminated and the pylons shut down, the ''Shadow of Intent'' began its attack on Truth. At the same time the former Covenant city ship ''High Charity'' arrived from slipspace and crashed on the Ark. Debris, spread from the city-ship, heavily damaged the ''Shadow of Intent'' and helped spread a new Flood infestation on the Ark as a means to stop Truth and to be safe from the Halo activation array. Without any heavy support, SPARTAN-117 and the Arbiter personally attacked the facility where Truth was to activate the Halo installations.
*Sergeant Major Johnson, who had disappeared during the assault on the towers, was in fact captured by Truth's forces and was being tortured into pressing the final switch to activate the other Halos, as fail-safes within the structure prevented anyone other than a Forerunner or a Reclaimer to do so. With SPARTAN-117 and the Arbiter too far away to stop Truth, Commander Keyes grabbed a Pelican dropship and crashed into the facility to rescue Johnson, but was killed soon thereafter by Truth himself. The Gravemind dispatched Flood forces to assist SPARTAN-117 and the Arbiter in order to prevent the activation of the Halo Array system; their support enabled the Master Chief and the Arbiter to reach Truth in time. The Arbiter personally killed Truth with his sword. However, the Gravemind betrayed the two of them after knocking them out of Keyes' Pelican,(then piloted by Johnson and also carrying the Commander's body), thwarting their plan of escape and forcing SPARTAN-117 and the Arbiter to fight their way outside.


====Raid on High Charity====
====Raid on High Charity====
*343 Guilty Spark had managed to facilitate the making of a new Halo through the Ark, explaining that a tactical pulse from it would eliminate the Flood infestation. However, this new Halo lacked an Activation Index. The only way they could get another Index was to rescue Cortana from High Charity since she still possessed the Index from Installation 04. Through a tough battle, SPARTAN-117 and the Arbiter successfully entered the ruins of High Charity and recovered Cortana, using a partly-damaged Pelican to escape while High Charity was destroyed when its reactors went critical after the Spartan blasted them.
*343 Guilty Spark, John-117 and the Arbiter learned that the Ark's Forge had created a replacement for the destroyed Installation 04. Realizing that they could use it to fire a tactical pulse which would eliminate the Flood infestation, they decided to light it. However, this new Halo lacked an Activation Index. The only way they could get another Index was to rescue Cortana from High Charity since she still possessed the Index from Installation 04. The Master Chief and the Arbiter successfully entered the ruins of High Charity and recovered Cortana, using a partly-damaged Pelican to escape while High Charity was destroyed.


====End of Human-Covenant War====
====End of Human-Covenant War====
*With the Index secure, the Arbiter ordered that the remaining [[UNSC]] forces relocate to the [[Separatist]] ships and escape back through the Slipspace portal to [[Earth]] while he, [[SPARTAN-117]] and [[Sergeant Major]] [[Avery Junior Johnson]] moved in on the Control Room of the incomplete Halo, the latter coming in alone aboard the ''Forward Unto Dawn''. The Dawn was left behind as the only means of escape. By now what was left of the Gravemind had relocated to the new Halo. The Arbiter, Johnson, and SPARTAN-117, along with 343 Guilty Spark made it through waves of Flood to the Control Room. 343 Guilty Spark explained that the new Halo would be ready to fire within a few days, but with Flood moving in all around them Johnson explained the necessity of firing the ring immediately, prompting Guilty Spark's protest that activating Halo now would destroy both the Ark and the installation, and Johnson's subsequent reply of, "deal with it," as he prepared to activate the ring. Unwilling to let "his" ring be destroyed again, Spark went rampant, attacking Johnson, [[SPARTAN-117]], and the Arbiter. However, with the help of mortally-wounded Johnson and his laser, [[SPARTAN-117]] managed to destroy Guilty Spark and start the firing sequence for the new Halo. Just after Johnson's final remarks to [[SPARTAN-117]], he died. SPARTAN-117 and the Arbiter then escaped the control room by taking Johnson's [[Warthog]] to the ''Forward Unto Dawn''. Due to the unstable, incomplete nature of the ring as it fired, the Slipspace portal collapsed as the ''Dawn'' entered it, causing it to be sheared in two. The forward half with the Arbiter made it to [[Earth]], crashing into an ocean (presumably the Indian Ocean). Cortana and SPARTAN-117 were in the hangar area at the time of the separation, and were thus left in the aft section of the ship, which fell out of Slipstream space at an unknown location, eventually drifting towards an [[Legendary Planet|unidentified planet]].
*With the Index secure, the Arbiter ordered that the remaining UNSC forces relocate to the Separatist ships and escape back through the Slipspace portal to Earth while he, SPARTAN-117 and [[Sergeant Major]] Avery Junior Johnson moved in on the Control Room of the incomplete Halo, the latter coming in alone aboard the ''Forward Unto Dawn''. The Dawn was left behind as the only means of escape. By now what was left of the Gravemind had relocated to the new Halo. The Arbiter, Johnson, and SPARTAN-117, along with 343 Guilty Spark made it through waves of Flood to the Control Room. 343 Guilty Spark explained that the new Halo would be ready to fire within a few days, but with Flood moving in all around them Johnson explained the necessity of firing the ring immediately, prompting Guilty Spark's protest that activating Halo now would destroy both the Ark and the installation, and Johnson's subsequent reply of, "deal with it," as he prepared to activate the ring. Unwilling to let "his" ring be destroyed again, Spark went rampant, attacking Johnson, SPARTAN-117, and the Arbiter. However, with the help of mortally-wounded Johnson and his laser, SPARTAN-117 managed to destroy Guilty Spark and start the firing sequence for the new Halo. Just after Johnson's final remarks to SPARTAN-117, he died. SPARTAN-117 and the Arbiter then escaped the control room by taking Johnson's [[Warthog]] to the ''Forward Unto Dawn''. Due to the unstable, incomplete nature of the ring as it fired, the Slipspace portal collapsed as the ''Dawn'' entered it, causing it to be sheared in two. The forward half with the Arbiter made it to Earth, crashing into an ocean (presumably the Indian Ocean). Cortana and SPARTAN-117 were in the hangar area at the time of the separation, and were thus left in the aft section of the ship, which fell out of Slipstream space at an unknown location, eventually drifting towards an [[Legendary Planet|unidentified planet]].


===December===
===December===
'''December 31st'''
'''December 31'''
*[[Codename: SURGEON]] filed a report to [[Codename: USUAL SUSPECTS]] entitled "[[Historical/Psychological Analysis of Cole, Preston J.]]" The report was filed from {{UNSCShip|Point of No Return}} in synchronous orbit on the far side of [[Luna]].<ref>'''[[Halo: Evolutions]]''', "[[The Impossible Life and the Possible Death of Preston J. Cole]]", ''pages 413-487''</ref>
*[[Codename: SURGEON]] filed a report to [[Codename: USUAL SUSPECTS]] entitled "[[Historical/Psychological Analysis of Cole, Preston J.]]" The report was filed from {{UNSCShip|Point of No Return}} in synchronous orbit on the far side of [[Luna]].<ref>'''[[Halo: Evolutions]]''' - ''[[The Impossible Life and the Possible Death of Preston J. Cole]]'', pages 413-487</ref>


==Battles==
==Battles==
'''Human-Covenant War'''
'''Human-Covenant War'''
*[[Battle of Sigma Octanus IV]]
*Battle of Sigma Octanus IV
*[[Battle of Reach]]
*Battle of Tribute
*[[Battle of Installation 04]]
*[[Battle of Verge]]
*Battle of Line Installation 1-4
*Fall of Reach
**Battle of Viery
**[[Operation: UPPER CUT]]
**[[Raid of New Alexandria]]
**[[Battle of Aszod]]
*Battle of Installation 04
**[[Raid on the Truth and Reconciliation]]
**[[Raid on the Truth and Reconciliation]]
**[[Battle of the Silent Cartographer]]
**[[Battle of the Silent Cartographer]]
*[[Massacre at Eridanus Secundus]]
*[[Massacre at Eridanus Secundus]]
*[[Operation: FIRST STRIKE]]
*Operation: FIRST STRIKE
*[[Battle of Earth]]
*Battle of Earth
**[[Battle of Mombasa]]
**Battle of Ross Island
**[[Battle of Havana]]
**Battle of Mombasa
**[[Battle of Cleveland]]
**Battle of Havana
**[[Battle of Sector Six]]
**Battle of Cleveland
**[[Battle of Voi]]
**Battle of Sector Six
*[[Battle of the Gas Mine]]
**Battle of Voi
*[[Battle of Installation 05]]
*Battle of the Gas Mine
*[[Battle of Onyx]]
*Battle of Installation 05
*[[Battle of Mare Erythraeum]]
*Battle of Onyx
*[[Battle of Installation 00]]
*Battle of Mare Erythraeum
*Battle of Installation 00


'''The Great Schism'''
'''The Great Schism'''
Line 267: Line 290:


'''Quarantine of the Flood'''
'''Quarantine of the Flood'''
*[[Battle of Installation 05|Quarantine of Installation 05]]
*Battle of Installation 05
**[[Battle of the Quarantine Zone]]
**[[Battle of the Quarantine Zone]]
*[[Second Battle of High Charity]]
*[[Second Battle of High Charity]]


==Notable deaths==
==Deaths==


{{Under Construction|section}}
{{Under Construction|section}}
{{Col-begin}}
{{Col-begin}}
{{Col-1-of-2}}
{{Col-3}}
'''Human'''
===Human===
 
*[[General]] [[Kits]]
*[[Vice Admiral]] Danforth Whitcomb
*Vice Admiral [[Roland Freemont]]
*Vice Admiral [[Hieronymus Michael Stanforth]]
*[[Admiral]] [[Carl Patterson|Carl "Buster" Patterson]]
*[[Colonel]] James Ackerson
*[[Rear Admiral]] [[Ned Rich]] <small>(According to the [[ONI Memorial]].)</small>
*[[Herzog|Colonel Herzog]]
*[[Felicia Sanderson|Colonel Felicia Sanderson]]
*[[Teller|Colonel Teller]]
*[[Unnamed UNSC Colonel]]
*[[Unnamed Bumblebee Pilot]]
*[[Unnamed Female Corporal]]
*[[Captain (Navy)|Captain]] Jacob Keyes
*Captain [[Aaron G. Gibson]] <small>(According to the ONI Memorial.)</small>
*Captain [[Greene]]
*Captain [[Moreland]]
*[[Dr. Endesha]]
*[[Lieutenant Commander]] [[Kurt Ambrose]]
*Lieutenant Commander Miranda Keyes
*[[Gail Purdy|Lieutenant Commander Gail Purdy]]
*[[Major]] [[Antonio Silva]]
*[[Commander]] [[Jerome G. Ortega]] <small> (According to the ONI Memorial.)</small>
*[[Lieutenant]] [[Dominique]]
*Lieutenant [[Frye]]
*Lieutenant [[Hall (character)|Hall]]
*Lieutenant [[Rick Hale]]
*Lieutenant Elias Haverson
*Lieutenant [[Aki Hikowa]]
*Lieutenant [[Peterson]]
*Lieutenant, Junior Grade [[David Brightling]]
*Lieutenant, Junior Grade [[Bill Streeter]]
*[[First Lieutenant]] [[Buckman]]
*First Lieutenant Jake Chapman
*First Lieutenant [[Melissa McKay]]
*[[Second Lieutenant]] [[Dalu]]
*Second Lieutenant [[McCasky]]
*Second Lieutenant [[Oros]]
*[[Ensign]] [[Ellen Dowski]]
*Ensign [[William Lovell]]
*Flight Officer Captain [[Carol Rawley]]
*[[Warrant Officer]] [[Shiela Polaski]]
*[[Chief Petty Officer]] [[Thom Shephard]]
*Chief Petty Officer [[McRobb]]
*[[Petty Officer First Class]] [[Mary Murphy]]
*Petty Officer Third Class [[Samuel N. Marcus]]
*Petty Officer Third Class [[Pauley]]
*Sergeant Major Avery J. Johnson
*[[First Sergeant]] [[Tink Carter]]
*[[Master Sergeant]] [[Lister (Marine)|Lister]]
*[[Gunnery Sergeant (UNSC)|Gunnery Sergeant]] [[Waller]]
*[[Staff Sergeant]] [[Marvin Mobuto]]
*[[Sergeant]] [[Thomas Chang]]
*Sergeant [[Zhao Heng Lopez]]
*Sergeant [[Corly]]
*Sergeant [[Parker]]
*[[Corporal]] [[Jason Morelli]]
*Corporal [[C. Errera|Errera]]
*Corporal [[Locklear]]
*Corporal [[Lovik]]
*Corporal [[Mitchell]]
*Corporal [[Perez]]
*Corporal [[Yutrzenika]]
*[[Lance Corporal]] [["Snaky" Jones]]
*Lance Corporal [[Eugene Yate]]
*[[Private First Class]] [[Hosky]]
*Private First Class [[M. Fitzgerald]]
*Private First Class [[Wallace A. Jenkins]]
*[[Private]] [[Bisenti]]
*Private [[Kappus]]
*Private [[Manuel Mendoza]]
*Private [[Marie Postly]]
*Private [[McKenzie]]
*Private [[O'Brien]]
*Private [[Riley]]
*Private [[Satha]]
*Private Marie Postly
*[[Corpsman]] [["Doc" Valdez]]
*Crew Chief [[Cullen]]
*Flight Officer Mitchell
*Crewman [[Singh]]
*[[Hospital Corpsman]] [[Ngoc Benti]]
*[[Governor]] Jacob Jiles
*War Photographer [[Jake Courage]]
*Ruwan Ackerson
*[[Laszlo Sorvad]]
*[[Patrick Rimmer]]
*[[Clarence]]
*[[Devesh Bhasin]]
*[[Gage Yevgenny]]
*[[Eric Santiago]]
*[[Sita]]
*[[Orrin]]
*[[Dale (ODST)|Dale]]
*[[Amey]]
*[[Amey]]
*[[James Ackerson|Ackerson, James]] - [[Colonel]]
*[[Ruwan Ackerson|Ackerson, Ruwan]]
*[[Ngoc Benti|Benti, Ngoc]] - [[Hospital Corpsman]]
*[[Bisenti]] - Private
*[[Buckman]] - [[Lieutenant]]
*[[Tink Carter|Carter, Tink]] - [[First Sergeant]]
*[[Jake Chapman|Chapman, Jake]] - [[First Lieutenant]]
*[[Charleston]]
*[[Charleston]]
*[[Clarence]]
*[[Connor Brien]]
*[[Corly]] -  [[Sergeant]]
*Amey
*[[Connor Brien|Brien, Connor]]
*[[Kowalski]]
*[[Jake Courage|Courage, Jake]] - War Photographer
*[[Dale (ODST)|Dale]]
*[[Dalu]] - [[Second Lieutenant]]
*[[Ellen Dowski|Dowski, Ellen]] - [[Ensign]]
*[[Endesha]] - Doctor
*[[M. Fitzgerald|Fitzgerald, M.]] - [[Private First Class]]  
*[[Hague]]
*[[Hague]]
*[[Rick Hale|Hale, Rick]] - [[Lieutenant]]
*[[Burgundy]]
*[[Elias Haverson|Haverson, Elias]] - Lieutenant
*[[Dawkins]]
*[[Herzog]] - Colonel
*[[Suzuki]]
*[[Aki Hikowa|Hikowa, Aki]] - Lieutenant
*[[Al-Thani]]
*[[Hosky]] - [[Private First Class]]
*[[Jacob Keyes|Keyes, Jacob]] - [[Captain (Navy)|Captain]]
*[[Wallace A. Jenkins|Jenkins, Wallace]] - [[Private First Class]]
*[[Jacob Jiles|Jiles, Jacob]] - [[Governor]]
*[[Avery J. Johnson|Johnson, Avery]] - [[Sergeant Major]]
*[[Jones]] - [[Lance Corporal]]
*[[Kappus]] - [[Private]]
*[[Miranda Keyes|Keyes, Miranda]] - Lieutenant Commander
*[[Kits]] - [[General]]
*[[Lister (marine)|Lister]] - [[Master Sergeant]] 
*[[Locklear]] - [[Corporal]]
*[[William Lovell|Lovell, William]] - [[Ensign]]
*[[Lovik]] - [[Corporal]]
*[[Samuel N. Marcus|Marcus, Samuel]] - [[Petty Officer Third Class]]
*[[McCasky]] - [[Second Lieutenant]]
*[[Melissa McKay|McKay, Melissa]] - [[First Lieutenant]]
*[[McKenzie]] - [[Private]]
*[[Manuel Mendoza|Mendoza, Manuel]] - [[Private]]
*[[Mitchell]] - [[Corporal]]
*[[Marvin Mobuto|Mobuto, Marvin]] - [[Staff Sergeant]]
*[[Nixaliz]]
*[[Nixaliz]]
*[[O'Brien]] - [[Private]]
*[[Oros]] - [[Second Lieutenant]]
*[[Orrin]]
*[[Parker]] - [[Sergeant]]
*[[Perez]] - [[Corporal]]
*[[Patrick Rimmer|Rimmer, Patrick]]
*[[Riley]] - [[Private]]
*[[Marie Postly|Postly, Marie]] - [[Private]]
*[[Shiela Polaski|Polaski, Shiela]] - [[Warrant Officer]]
*[[Carol Rawley|Rawley, Carol]] - Flight Officer Captain
*[[Gail Purdy|Purdy, Gail]] - Lieutenant Commander
*[[Felicia Sanderson|Sanderson, Felicia]] - Colonel
*[[Antonio Silva|Silva, Antonio]] - [[Major]]
*[[Thom Shephard|Shephard, Thom]] - [[Chief Petty Officer]]
*[[Satha]] - [[Private]]
*[[Eric Santiago|Santiago, Eric]]
*[[Sita]]
*[[Kurt-051|SPARTAN-051: Kurt]] - [[Lieutenant Commander]]
*[[Jorge-052|SPARTAN-052: Jorge]] – Warrant Officer
*[[Thom-293|SPARTAN-?293: Thom]] - Unknown
*[[Emile-A239|SPARTAN-A239: Emile]] – Warrant Officer
*[[Carter-A259|SPARTAN-A259: Carter]] - Commander
*[[SPARTAN-B312|SPARTAN-B312]]  - Lieutenant
*[[Catherine-B320|SPARTAN-B320: Kat]] – Lieutenant Commander
*[[Teller]] - Teller
*[[Vern]]
*[[Vern]]
*[[Waller]] - [[Gunnery Sergeant (UNSC)|Gunnery Sergeant]]
*[[William-043]]
*[[Danforth Whitcomb|Whitcomb, Danforth]] - [[Vice Admiral]]
*Jorge-052
*[[Gage Yevgenny|Yevgenny, Gage]]
*[[Malcolm-059]]
*[[Isaac-039]]
*[[Vinh-030]]
*[[Grace-093]]
*[[Li-008]]
*[[Joshua-029]]
*[[Anton-044]]
*Catherine-B320
*[[Carter-A259]]
*[[Emile-A239]]
*SPARTAN-B312
*[[Holly-G003]]
*[[Dante-G188]]
*Thom-293


{{Col-2-of-2}}
{{Col-3}}


===Covenant===
'''Sangheili'''
'''Sangheili'''
*[[Imperial Admiral]] [[Xytan 'Jar Wattinree]] <small>(Presumed dead by the NOVA activation near Joyous Exultation)</small>
*Imperial Admiral Xytan 'Jar Wattinree <small>(Presumed dead by the NOVA activation near Joyous Exultation)</small>
*[[Fleet Master]] [[Voro Nar 'Mantakree]]
*Fleetmaster Voro Nar 'Mantakree
*[[Field Master]] [[Noga 'Putumee]]
*Fieldmaster Noga 'Putumee
*[[Heretic|Heretic Commander]] [[Sesa 'Refumee]]
*Heretic Commander [[Sesa 'Refumee]]
*[[Shipmaster]] [[Orna 'Fulsamee]]
*Shipmaster [[Orna 'Fulsamee]]
*Shipmaster [[Tano 'Inanraree]]
*[[Special Operations Officer]] [[Zuka 'Zamamee]]
*[[Special Operations Officer]] [[Zuka 'Zamamee]]
*[[Ado 'Mortumee]]
*[[Ado 'Mortumee]]
*[[Isna 'Nosolee]]
*[[Isna 'Nosolee]]
*[[Soha 'Rolamee]]
*[[Soha 'Rolamee]]
*[[Unnamed Ship Master of the Rapturous Arc]]




'''San 'Shyuum'''
'''San 'Shyuum'''
*[[Prophet of Regret|High Prophet of Regret]]
*High Prophet of Regret
*[[Prophet of Mercy|High Prophet of Mercy]]
*High Prophet of Mercy
*[[Prophet of Truth|High Prophet of Truth]]
*High Prophet of Truth
*[[Prophet of Stewardship]]
*[[Truth and Reconciliation's Prophet]]
*[[Minister of Etiology]]
*[[Minister of Etiology]]
*[[Minister of Inquisition]]
*Minister of Inquisition




'''Jiralhanae'''
'''Jiralhanae'''
*[[Chieftain of the Jiralhanae]] [[Tartarus]]
*[[Chieftain of the Jiralhanae]] Tartarus
*[[Ceretus]]
*[[Ceretus]]
*[[Jiralhanae Chieftain]] [[Parabum]]
*[[Jiralhanae Chieftain]] Parabum
*[[Maladus]]
*[[Maladus]]
*[[Facius]]
*[[Facius]]
Line 393: Line 468:
*[[Kwassass]]
*[[Kwassass]]
*[[Flipyap]]
*[[Flipyap]]
*[[Mehmep]]


'''Yanme'e'''
'''Yanme'e'''
*[[Hopalong]]
*[[Hopalong]]
 
{{Col-3}}
'''Forerunner'''
===Forerunner===
*[[343 Guilty Spark (Monitor)|343 Guilty Spark]]
*[[343 Guilty Spark (Monitor)|343 Guilty Spark]]
*[[032 Mendicant Bias]] <small>(Presumed destroyed with the Ark)</small>
*[[032 Mendicant Bias]] <small>(Presumed destroyed with the Ark)</small>


'''Flood'''
'''Flood'''
*[[Gravemind]]
*Gravemind


{{Col-end}}
{{Col-end}}
Line 411: Line 487:
==Sources==
==Sources==
{{Reflist|2}}
{{Reflist|2}}
[[es:2552]]
[[fr:2552]]

Revision as of 11:18, May 18, 2011

Template:Ratings

v • d • e
 
Real-world chronology
Pre-2000
1997 • 1998 • 1999
2000s
2000 • 2001 • 2002 • 2003 • 2004 • 2005 • 2006 • 2007 • 2008 • 2009
2010s
2010 • 2011 • 2012 • 2013 • 2014 • 2015 • 2016 • 2017 • 2018 • 2019
>2020s
2020 • 2021 • 2022 • 2023 • 2024

2552 was the penultimate year in the Human-Covenant War, during which the Humans of the United Nations Space Command nearly saw utter defeat and extinction, though the tide turned, and with the help of the Sangheili, won the Human-Covenant War. The Covenant were at the peak of their power and reach in 2552, with major assaults on the Human Inner Colonies and an invasion followed by a prolonged engagement on their home planet, Earth.[1][2][3] During the battle at Installation 04, the galaxy found its first large outbreak of the Flood threat in over a hundred thousand years.[4][5] Over two months later, an even larger outbreak occurred at Installation 05.[6]

The war finally drew to a close at Installation 00, known more commonly as the "Ark", with the Humans and Sangheili attempting to assassinate the Prophet of Truth, before he could activate the remaining Halo Installations.[7][8] The alliance was successful in their mission against the Covenant.

Events

January

January 8

February

April

April 22

May

May 10

July

July 17

July 18

July 24

  • Two months after the death of Thom-293, SPARTAN-B312 joins Noble Team as Noble Six.
  • Noble Team is sent by Colonel Urban Holland on a mission to investigate a downed communication relay on Reach.
  • The Covenant begin their invasion of Reach.
  • Noble Team discovers the Covenant's presence on Reach for the first time, learning that it was they who sabotaged the relay at Visegrad. Planetary directive WINTER CONTINGENCY is declared.

July 26

  • Sword Base, a ONI research facility comes under attack by a Covenant corvette. The UNSC Army with the help of Noble Team successfully repel the attack and the Corvette is destroyed by orbital support.

August

Unknown date

Early August (sometime from the 6th to the 12th)

August 12

August 13

  • 60% of the remainder of the UNSC fleet is recalled to Reach, destined to arrive within the next 48 hours.

August 14

August 23

  • Noble Six participates in the Battle of New Alexandria on Reach. Six rescues civilians by helping them escape. Noble Six eventually meets up with the rest of Noble Team, and the Covenant begin glassing the city. As Noble Team is on their way to a fallout shelter under the Olympic Tower, Catherine-B320 is killed by sniper fire.

August 25

August 26

  • The remainder of Noble Team is evacuated from the destroyed New Alexandria via a Pelican.

August 27

  • All available SPARTAN-IIs gather at the FLEETCOM Military Complex on Reach, where they learn of their next mission: to acquire a Covenant vessel, navigate to the Covenant home world, and return with captured Covenant leadership.

August 29

  • SPARTAN-117 receives a neural interface upgrade, MJOLNIR Mark V armor, and is introduced to Cortana.
  • Noble Team is ordered to destroy Sword Base in a torch-and-burn op. During the operation, Noble Team makes their way inside Sword Base where they encounter Dr. Halsey, who asks them to protect her lab. Noble Team is then given direct orders to escort a fragment of Cortana holding crucial data from the Babd Catha Forerunner Complex to the Pillar of Autumn. Halsey is then escorted back to CASTLE base by Jun-A266.

August 30

  • Cortana has ONI Colonel James Ackerson illicitly transferred to the front. This is her revenge for his attempts to eliminate both her and SPARTAN-117.
  • First Lieutenant Jake Chapman, along with most of Charlie Company is killed during the Fall of Reach.
  • The Covenant, despite sustaining heavy losses, wins a crushing victory at the Fall of Reach. Many of the remaining SPARTAN-IIs are killed.
  • The surviving SPARTAN-IIs on Reach are separated into two groups. One recovers Vice Admiral Whitcomb and goes into hiding at Camp Independence. The others are admitted into CASTLE Base by Dr. Halsey and receive parts of the MJOLNIR Mark V upgrade and new weapons.
  • Dr. Halsey learns of Colonel Ackerson's mysterious plans that seem to involve "her" Spartans.
  • SPARTAN-B312 destroys a CCS-class Battlecruiser with a mass driver to allow the Pillar of Autumn to escape Reach. The Spartan is killed by Sangheili soon after. The Autumn jumps away from the system, with Cortana using Forerunner navigation data from the Sigma Octanus IV Artifact as well as the Babd Catha Forerunner Complex.

September

September 4

September 14

September 19

  • The UNSC Pillar of Autumn arrives at Alpha Halo.[15]
  • The Battle of Installation 04 begins.
  • SPARTAN-117 is awoken from cryo sleep and tasked with preventing Cortana's capture by the Covenant.
  • SPARTAN-117 and Cortana escaped the ship aboard a Bumblebee-class Lifepod, which later crashed on the ring.
  • The UNSC Pillar of Autumn is forced to crash land on the ring. A significant portion of its crew survives to continue the fight on the ground.
  • Captain Keyes and the others in his escape pod are captured by the Covenant. Only Keyes escapes summary execution, and is taken to the CCS-class Truth and Reconciliation.

September 20

John-117 leading Marines on Installation 04.
  • SPARTAN-117 leads a Marine force to board the Truth and Reconciliation. They recover Keyes and escape aboard a Covenant dropship. Keyes orders SPARTAN-117 to find the "Silent Cartographer", a map room that will reveal the location of the Control Room. Keyes leaves to lead an assault on a Covenant weapons cache.
  • Having found the map room and the pertinent information, Cortana directs a Pelican to take them to the area where the ring's Control Room is. Upon reaching the Control Room, Cortana transfers to the Control Room's computer and directs SPARTAN-117 to stop Keyes from accessing the 'weapons cache', really a Forerunner research and quarantine facility.
  • SPARTAN-117, without Cortana, enters the facility but is unable to locate Keyes. Instead, he discovers the "Flood" and is forced to retreat. He links up with marines and takes command of the surviving members of Keyes' team and together they fight their way to the extraction point. However, the Spartan is conscripted by the "Monitor of Installation 04" and teleported away before he can be evacuated with the surviving members.

September 21

  • The Monitor takes John-117 to the ring's "Library" to retrieve the "Index", a device needed to activate the ring's primary weapon. Having retrieved the Index, the Monitor teleports the Spartan back to the Control Room where an irate Cortana confiscates the Index and prevents the ring from firing. SPARTAN-117 and Cortana flee a now-hostile 343 Guilty Spark and Sentinels.
  • To forestall the ring from being activated manually, SPARTAN-117 disables the ring's three Pulse Generators. This is to buy time to destroy the ring by activating the auto-destruct on the Template:UNSCship. Only Keyes neural interface can activate the ship's self-destruct, and SPARTAN-117 embarks once more to rescue the captain.
  • Cortana teleports the Spartan to the Flood-overrun Covenant cruiser where Jacob Keyes is being held. Alas, the pair arrives too late to save Keyes, who has been merged into a Brain Form. SPARTAN-117 retrieves the neural interface by punching in the former-captain's head. Cortana downloads the necessary codes, and the duo returns to the Template:UNSCship on a captured Banshee.

September 22

September 23

  • A Time/Date Record Anomaly continues from this point in the narrative, resolved above on Sep 7, 2552.

September's Anomaly

After the recovery of a Forerunner device on Reach, the members of an organized resistance comprised of SPARTANs from Reach and survivors of the Battle of Installation 04 are in some sort of time anomaly, causing them not to be in the "correct timeline".[16] What is known is that the events taken place with the possession of the device take place after September 7.

John-117 and Marine survivors fighting on the Ascendant Justice.

September 7

  • The Time/Date Record Anomaly of Sept 23, 2552 most likely rejoins the correct timeline.
  • Dr. Halsey and members of Red Team discover an enigmatic shard in a Forerunner installation below CASTLE Base. They are besieged by Covenant forces who seek to possess the shard.
  • Dr. Halsey initiates Operation: WHITE GLOVE, destroying CASTLE Base, thus preventing the Covenant forces above from capturing any UNSC and/or Forerunner technology. Halsey and members of Red Team are protected from the resulting detonation when they hide in the caves beneth the base.
  • The remaining Spartans, Admiral Whitcomb, Dr. Halsey, Sgt. Johnson, Lieutenant Haverson, Warrant Officer Polaski, and Corporal Locklear jump to Slipspace on board the Covenant/Human hybrid ship Template:UNSCship-Ascendant Justice, and discover that the shard seems to have the ability to bend both space and time.

September 12

  • The Gettysburg/Ascendant Justice arrives for refit and provisioning in Eridanus system and meets with the rebels under Governor Jiles. Dr. Halsey sedates Spartan 087, Kelly, and absconds with her on Governor Jiles' personal ship, the Chiroptera-class Beatrice. Before she goes, she gives the alien artifact to Corporal Locklear, with implicit instructions to destroy it.

September 13

  • UNSC forces aboard the Gettysburg/Ascendant Justice win a crucial victory at the Battle of the Unyielding Hierophant. SPARTAN-093, Lieutenant Haverson of ONI and Vice Admiral Whitcomb are killed. The survivors, now aboard the singular UNSC Gettysburg and with a captured Covenant slipspace drive, depart for Earth to warn of the impending Covenant invasion.

October

Unknown Date

  • An Edict from the Office of the High Prophet of Truth orders that in the virtue of the Jiralhanae, all Sangheili posted with the Fleet of Profound Solitude, the Fleet of Tranquil Composure, and the Fleet of Inner Knowledge to be completely replaced by Jiralhanae. Each removed Sangheili to be assigned other duties. In celebration, all imprisoned or criminal Jiralhanae were released, rehabilitated, and pardoned.[17]
  • The UNSC Red Horse is sent to Installation 04's debris field in the Soell System to scout the area for survivors. They detect the prison ship UNSC Mona Lisa and deploy Marines into the ship. Soon after, it is revealed that the ship is infested by the Flood and was used by the Office of Naval Intelligence as a laboratory to test the parasite on prisoners. The infestation is contained as the Red Horse unleashes a Shiva-class Nuclear Missile on the Mona Lisa, destroying it.[18]

October 20

File:Battle of New Mombasa.jpg
The Battle of Earth at Mombasa.
  • SPARTAN-117 is outfitted with the MJOLNIR Mk. VI aboard Cairo Station.
  • The Fleet Commander of Particular Justice is deemed a Heretic by the Covenant High Council and sentenced to death.
  • SPARTAN-117 and Staff Sergeant (now promoted to Sergeant Major) Johnson are decorated at a ceremony aboard Cairo Station. Captain Keyes is awarded posthumously and the decoration is entrusted to Lieutenant Commander Keyes.
  • The Battle of Earth begins.
  • The High Prophet of Regret's fleet arrives at Earth, not expecting any human presence. The vastly outnumbered Covenant force attacks without seeking support from other Covenant forces.
  • SPARTAN-117 foils a Covenant attempt to demolish Cairo Station and commandeers the Covenant bomb to destroy an assault carrier.
  • The High Prophet of Regret's assault carrier breaks through the orbital defenses and initiates a ground assault on New Mombasa and the surrounding area.
  • A squad of ODSTs, consisting of Corporal Taylor "Dutch" Miles, Lance Corporal Kojo "Romeo" Agu, PFC Michael "Mickey" Crespo, and The Rookie, led by Captain Veronica Dare and Gunnery Sergeant Edward Buck, launch into New Mombassa from the UNSC Say My Name.
  • SPARTAN-117 deploys to New Mombasa in an attempt to capture the High Prophet of Regret. Before this can happen, the assault carrier initiates a slipspace jump within the city, escaping Earth and severely damaging the city in the process. The UNSC In Amber Clad, with SPARTAN-117 aboard, successfully pursues the carrier through slipspace.
  • Immediately after Regret's retreat, an additional Jiralhanae-led Covenant occupation force is inserted to New Mombasa, as a part of the Prophet of Truth's plan to eventually replace the Sangheili with the Brutes as the Covenant's primary warrior race. For the rest of the day, UNSC and Covenant forces battle for control of the city. Meanwhile, the Covenant fleet begins the process of uncovering the Ark Portal.
  • The ONI Alpha Site in New Mombassa is destroyed by the combined forces of the UNSC and the New Mombasa Police Department, led by Corporal Miles and and PFC Crespo, in order to prevent the Covenant from accessing it. The explosion inadvertantly awakens a large Drone hive in the tunnels below the base.
  • The former Fleet Commander of Particular Justice is made the Arbiter by the High Prophets of Truth and Mercy.
  • The Arbiter destroys a heretic group and 'recovers' the Oracle during the Battle of the Gas Mine.


October 21

  • The Battle of Mombasa ends with a Covenant victory.
  • In the dawn, Covenant reinforcements sent by the Prophet of Truth continue arriving at Earth to uncover the Portal.
  • Dare's Shock Trooper Squad escapes New Mombasa as the city, along with its surroundings are glassed by the Covenant excavation fleet.

October 20 through November 2

  • The Spartan-II Blue Team is deployed to defend Earth during the two weeks that follow the initial Covenant invasion. They participate in numerous combat missions on and around Earth, including Battle of Ross Island in the Antarctica and an underwater operation in the Yucatan Peninsula.

October 31

November

November 2

  • The Battle of Installation 05 begins.
  • The UNSC In Amber Clad arrives at Delta Halo, following the High Prophet of Regrets assault carrier. SPARTAN-117, aided by ODSTs and marines, pursue the High Prophet to a Forerunner temple and assassinate him. However, orbital bombardment from the escorting fleets of the newly arrived High Charity destroys the temple. SPARTAN-117 is thrown into a lake and captured by Gravemind.

November 3

  • The Great Schism begins.
  • The UNSC Dusk arrives at Delta Halo and witnesses the final stages of the Battle of Installation 05. She retreats to Earth via a Slipspace Wake caused by the Forerunner ship.
  • Dr. Halsey and SPARTAN-087 arrive at Onyx and are trapped along with the rest of the human survivors. Halsey sends a distress signal piggybacked on Cortana's October 28 signal.
  • The Battle of Havana is fought. Having received Halsey's signal, SPARTAN-043, SPARTAN-058, and SPARTAN-104 redeploy from Earth to Onyx aboard a captured Covenant ship. They rendezvous with Halsey. The UNSC survivors are forced to retreat underground as a newly arrived Covenant fleet beings landing troops.
  • Voro 'Mantakree is promoted to Fleet Master by Imperial Admiral Xytan 'Jar Wattinree, and is given the mission to intercept the SPARTANs heading for Onyx and to retreieve the Forerunner technologies said to be there.
  • Danforth Whitcomb's NOVA Bomb detonates onboard the Covenant supercarrier Sublime Transcendence, in orbit above the Sangheili outpost world Joyous Exultation, destroying every ship in the vicinity, and also scorching a quarter of Joyous Exultation and compleatly vaporizing the nearby moon Malhiem.
  • The Dusk arrives at Earth after mere hours. Upon arrival, she is re-assigned to Battlegroup Stalingrad. The group jump to Onyx via the captured Covenant Ships Slipspace wake.
  • Blue Team arrives at Onyx aboard the captured Covenant destroyer Bloodied Spirit, and links up with Kurt-051, Kelly-087, Dr. Halsey, Chief Mendez, and the SPARTAN-III's. They procede to push foreward into Zone 67.
  • Battlegroup Stalingrad arrives at Onyx to retrieve the survivors, but is unsuccessful due to the Covenant presence. The UNSC battlegroup is destroyed.
  • Kurt-051 and his forces procede to destroy the Sentinel factory in Onyx's polar region and retrieve Team Katana, cryogenically frozen in Slipspace Field Pods.
  • Onyx is found to be an artificial Shield World built by the Forerunners.
  • Fred-104 is promoted to Lieutenant, Junior Grade by Kurt.
  • Kurt-051 dies after detonating 2 FENRIS warheads inside the Onyx Shield World structure.
  • Halsey and the other survivors hold off pursuing Covenant troops long enough to flee to the safety of the Shield World and seal the entrance.
  • Sentinels annihilate the remaining Covenant forces as Onyx's artificial landmass disintegrates.
  • The Battle of Onyx ends.
  • The Arbiter is sent to Delta Halo to retrieve that installation's Index. The Arbiter is successful, but is then betrayed by Tartarus, who casts the Arbiter into the depths of the ringworld. The Arbiter is subsequently captured by Gravemind.
  • Gravemind sends John-117 and the Arbiter to secure the Index and prevent the installation from being activated. SPARTAN-117 is teleported to High Charity while the Arbiter is teleported close to the Control Room. Both are aided by the chaos of the Covenant civil war.
  • SPARTAN-117 is unable to prevent the Index from leaving High Charity with Tartarus. Instead, on the advice of Cortana, the Spartan stows away aboard the Forerunner Dreadnought that is carrying the High Prophet of Truth to Earth. Cortana remains behind to ensure the destruction of Installation 05, should that become necessary.

November 3 through November 7

File:H2 High Charity Orbital Battle.jpg
Loyalist and Separatist ships fighting over High Charity.
  • Cortana sends a slipspace message to Earth informing them that SPARTAN-117 is en route.
  • The Arbiter reaches the Control Room but is unable to prevent Tartarus from activating the ring. With the help of humans and the Elites, the Arbiter kills Tarturus. This allows Commander Keyes to physically remove the Index from the Core, temporarily interrupting the firing sequence.
  • Due to the interruption, Installation 05 automatically sends a signal to all other Forerunner installations in the galaxy, activating and placing them in standby mode.

November 8

  • The Prophet of Truth arrives in the Sol System aboard the Forerunner Dreadnought, and proceeds on course towards Earth at near-relativistic speeds.[19]

November 8 through November 17

  • The Battle of Mare Erythraeum takes place on Mars, resulting in a victory for the Covenant Loyalists. Following the battle, Colonel James Ackerson, leader of the UNSC forces on Mars, is taken hostage and interrogated by the Jiralhanae Commander Lepidus onboard the Covenant cruiser Triumphant Declaration, who tells them of a Forerunner device linked to the Halo Array known as the Key of Osanalan, and that it can be found in Cleveland, Ohio.
  • Battle of Cleveland: The Covenant Loyalist Army invades Cleveland via the cruiser Harbinger of Piety. The Loyalist forces, under the direction of the Minister of Inquisition, are searching for the whereabouts of the Key of Osanalan (In reality, the Key of Osanalan was made up as a ploy by James Ackerson to prevent Cleveland from being glassed and to save the life of his brother Ruwan.) When Ruwan learns the reason the Covenant are invading, he devises a plan with Sergeant Twyker, involving being injected with organic tracking material. Ruwan confronts Lepidus at Chagrin Falls and tells him that he is the Key of Osanalan. Ruwan is taken onboard the Harbinger of Piety to meet with the Minister of Inquisition, who vows to spare Earth in exchange for Ruwan's knowledge. Ruwan plays along until the Prophet informed him that he knew of the organic tracking material, believing it to be a rescue beacon. In reality, it was a tracking vector. With his last words, he told the Prophet to "kiss [his] ass" right before Nassau Station used its Magnetic Accelerator Cannon to destroy the Harbinger of Piety.
  • Lepidus realizes that the Key of Osanalan does not exist, and returns to the Triumphant Declaration to confront Colonel Ackerson about this deception. Ackerson mocked the Brute Chieftain, saying that his belief in the Key of Osanalan was just one example of how their pompous arrogance would cost them the war. Moments later, Ackerson is beheaded by Lepidus.
  • Sergeant Major Johnson arrives back on Earth and gets clearance from Lord Hood to question Vergil about the artifact the High Prophet of Truth is digging up near Voi.

November 17

Concept art of John-117's descent to Earth at the start of Halo 3.
John-117 and the Forerunner Dreadnought entering Earth's atmosphere.
  • The Forerunner Dreadnought enters Earth's atmosphere. On-board is Master Chief Petty Officer John-117, who ejects from the ship, using a hatch as a heat shield upon re-entry. Meanwhile, Battle of Sector Six takes place at Pawa, Afghanistan. There, numerous Marines of the 2nd ODST Battalion track SPARTAN-117's descent. SPARTAN-117 eventually lands in the East African jungle near Mount Kilimanjaro, going unconscious for hours.[19]
  • The Prophet of Truth's Dreadnought lands in the middle of The Artifact near Voi, Kenya. During the last few weeks, Truth's fleet of twenty-odd CCS-class Battlecruisers and two Assault Carriers have almost entirely uncovered the artifact and occupied the entire region surrounding it.
  • SPARTAN-117 leads a UNSC counterattack to regain lost UNSC ground, retaking a jungle near Mount Kilimanjaro and securing the area around Crow's Nest, an underground facility used by the UNSC Defense Force to coordinate local Army, Navy, and Marine forces. The UNSC organize a small strike force led by SPARTAN-117 to attack the Covenant Loyalist-held Tsavo Highway, and thus have a platform for a strike at Voi.
  • The UNSC Marine Corps is able to retake the Tsavo Highway, and it serves for a staging ground for the battalion that would retake Voi. The UNSC forces stationed already at Voi have suffered severe casualties, with only pockets of Marines drawn in a scattered last defense against numerically superior and vehicle-supported Loyalist forces.
  • Fleet Admiral Sir Terrence Hood declares that it is imperative that SPARTAN-117's attack force retake Voi. Lord Hood's plan is that he will launch a low-level aerial strike on Truth's fleet above the Forerunner artifact, and prevent him from activating the presumed Ark. However, a Loyalist anti-aircraft emplacement stationed at Voi is preventing Hood's fleet from advancing; SPARTAN-117 is to retake Voi and destroy the anti-aircraft emplacement to allow Hood to attack Truth's fleet, and prevent him from activating the Ark.
The Ark Portal on Earth activates.
  • They later defeat the AA guns, opening up a pocket in the Loyalist Defenses for the Home Fleet to come in and engage Truth's forces. They are unsuccessful in damaging the Dreadnought, and it escapes through the Portal. At the same moment, a Flood-controlled ship slips in, crashing in Voi.
  • Lieutenant Commander Miranda Keyes orders her troops to fight to the core of the Flood Battlecruiser and overload its reactors, destroying the ship and the town and any Flood along with it. The Fleet of Retribution, having followed the Flood infected ship from their blockade at Installation 05 to its arrival at Earth, begins to drop forces to push towards the ship, seeking something that lay within it. It isn't until they come back into Traxus Facility that the Sangheili tell the UNSC that Cortana, the AI formally attached to the Spartan-IIs, the UNSC Pillar of Autumn, and companion of John-117, is supposedly on the downed ship.
  • The joint UNSC/Separatist force press on to the crash site and eventually break through, fighting past hordes of Flood. With the remaining forces giving cover to the Chief, he enters its Flood created carcass and, with surprise assistance from 343 Guilty Spark, the former Monitor of Installation 04, retrieves what is believed to be Cortana. After the ground forces are evacuated safely the Elites begin to glass the immediate area, annihilating the Flood and eliminating any chance of further Flood infection, effectively ending the Battle of Voi.

Late November through December

The end of 2552 saw the bloodiest period of the Great War and the beginning of the end. The Prophet of Truth was killed in the later months along with a sizable Covenant armada, leaving the Covenant forces crippled and leaderless as well as the full destruction of Gravemind and its Flood forces.

Battle of Installation 00

Main article: Battle of Installation 00
File:H3 E3 Orbital Battle.jpg
A battle rages above Installation 00.
  • The Prophet of Truth, having successfully activated the artifact in Kenya, left Earth through a Slipspace portal to the Ark, a Forerunner structure that could be used to fire all of the Halo installations at once.
  • After returning to the Sangheili cruiser Shadow of Intent with a construct believed to be Cortana, SPARTAN-117 discovers that it is not Cortana after all, but a looped message from her. It contains vital information nontheless: the message states that the Gravemind has firmly entrenched itself and the Flood on the Ark, but that there is also a way to destroy it without lighting the Halo rings.
  • Despite Lord Hood's urging, Commander Keyes, along with The Master Chief, Arbiter Thel 'Vadam, Shipmaster Rtas 'Vadum, and 343 Guilty Spark, took ships from the Home Fleet with a small fleet of Separatist cruisers led by the carrier Shadow of Intent and proceeded through the Slipspace portal and arrived at the Ark.
  • The Separatists on arrival immediately engaged the Loyalist fleet stationed to protect the Prophet while the Template:UNSCship deployed Marine Shock Troopers to locate Truth. Despite being outnumbered 3-to-1 in space, the Separatist fleet made short work of the Loyalist space forces, likely due to the Elites' superior tactical skills. The Covenant Loyalist Fleet had been destroyed and the only Loyalists left alive were Truth and his forces on the Ark. 343 Guilty Spark, now working with the UNSC-Separatist Alliance, led SPARTAN-117 and the Arbiter to the Ark's Cartographer where they pinpointed the Prophet's location. By then Truth had already holed himself in a secure facility near the core of the Ark and had activated a large barrier around the entire core to ward off the attacking forces.
  • The UNSC ground forces, along with Separatist reinforcements, assaulted three emitter pylons that powered a small section of the barrier. When the defending forces were eliminated and the pylons shut down, the Shadow of Intent began its attack on Truth. At the same time the former Covenant city ship High Charity arrived from slipspace and crashed on the Ark. Debris, spread from the city-ship, heavily damaged the Shadow of Intent and helped spread a new Flood infestation on the Ark as a means to stop Truth and to be safe from the Halo activation array. Without any heavy support, SPARTAN-117 and the Arbiter personally attacked the facility where Truth was to activate the Halo installations.
  • Sergeant Major Johnson, who had disappeared during the assault on the towers, was in fact captured by Truth's forces and was being tortured into pressing the final switch to activate the other Halos, as fail-safes within the structure prevented anyone other than a Forerunner or a Reclaimer to do so. With SPARTAN-117 and the Arbiter too far away to stop Truth, Commander Keyes grabbed a Pelican dropship and crashed into the facility to rescue Johnson, but was killed soon thereafter by Truth himself. The Gravemind dispatched Flood forces to assist SPARTAN-117 and the Arbiter in order to prevent the activation of the Halo Array system; their support enabled the Master Chief and the Arbiter to reach Truth in time. The Arbiter personally killed Truth with his sword. However, the Gravemind betrayed the two of them after knocking them out of Keyes' Pelican,(then piloted by Johnson and also carrying the Commander's body), thwarting their plan of escape and forcing SPARTAN-117 and the Arbiter to fight their way outside.

Raid on High Charity

  • 343 Guilty Spark, John-117 and the Arbiter learned that the Ark's Forge had created a replacement for the destroyed Installation 04. Realizing that they could use it to fire a tactical pulse which would eliminate the Flood infestation, they decided to light it. However, this new Halo lacked an Activation Index. The only way they could get another Index was to rescue Cortana from High Charity since she still possessed the Index from Installation 04. The Master Chief and the Arbiter successfully entered the ruins of High Charity and recovered Cortana, using a partly-damaged Pelican to escape while High Charity was destroyed.

End of Human-Covenant War

  • With the Index secure, the Arbiter ordered that the remaining UNSC forces relocate to the Separatist ships and escape back through the Slipspace portal to Earth while he, SPARTAN-117 and Sergeant Major Avery Junior Johnson moved in on the Control Room of the incomplete Halo, the latter coming in alone aboard the Forward Unto Dawn. The Dawn was left behind as the only means of escape. By now what was left of the Gravemind had relocated to the new Halo. The Arbiter, Johnson, and SPARTAN-117, along with 343 Guilty Spark made it through waves of Flood to the Control Room. 343 Guilty Spark explained that the new Halo would be ready to fire within a few days, but with Flood moving in all around them Johnson explained the necessity of firing the ring immediately, prompting Guilty Spark's protest that activating Halo now would destroy both the Ark and the installation, and Johnson's subsequent reply of, "deal with it," as he prepared to activate the ring. Unwilling to let "his" ring be destroyed again, Spark went rampant, attacking Johnson, SPARTAN-117, and the Arbiter. However, with the help of mortally-wounded Johnson and his laser, SPARTAN-117 managed to destroy Guilty Spark and start the firing sequence for the new Halo. Just after Johnson's final remarks to SPARTAN-117, he died. SPARTAN-117 and the Arbiter then escaped the control room by taking Johnson's Warthog to the Forward Unto Dawn. Due to the unstable, incomplete nature of the ring as it fired, the Slipspace portal collapsed as the Dawn entered it, causing it to be sheared in two. The forward half with the Arbiter made it to Earth, crashing into an ocean (presumably the Indian Ocean). Cortana and SPARTAN-117 were in the hangar area at the time of the separation, and were thus left in the aft section of the ship, which fell out of Slipstream space at an unknown location, eventually drifting towards an unidentified planet.

December

December 31

Battles

Human-Covenant War

The Great Schism

Quarantine of the Flood

Deaths

Template:Under Construction

Human

Covenant

Sangheili


San 'Shyuum


Jiralhanae

Unggoy

Yanme'e

Forerunner

Flood

  • Gravemind

Trivia

  • The first and second parts of 2552 equal 2+5=7 and 5+2=7, another one of Bungie's 7 references.

Sources

  1. ^ Halo 2, level Cairo Station
  2. ^ Halo: Ghosts of Onyx
  3. ^ Halo 3, level The Storm
  4. ^ Halo: Combat Evolved, level 343 Guilty Spark
  5. ^ Halo: Combat Evolved, level The Library
  6. ^ Halo 2, level Sacred Icon
  7. ^ Halo 3, level The Ark
  8. ^ Halo 3, level The Covenant
  9. ^ Halo: Helljumper Issue 1 page 3 "UNSC Operation 2552-JA-8 Codename: Fireside"
  10. ^ Halo: Reach level Noble Actual
  11. ^ Halo: Evolutions - Essential Tales of the Halo Universe - Blunt Instruments
  12. ^ Halo: Evolutions - Essential Tales of the Halo Universe - Dirt
  13. ^ Bungie.net: Halo 3: ODST Field Guide
  14. ^ Halo: First Strike, page 104
  15. ^ Halo: The Flood, page 1
  16. ^ Halo: First Strike
  17. ^ Halo Wars: Halo Timeline
  18. ^ Halo: Evolutions - Essential Tales of the Halo Universe - The Mona Lisa
  19. ^ a b Bungie.net: Bungie Weekly Update: 01/23/09
  20. ^ Halo: Evolutions - The Impossible Life and the Possible Death of Preston J. Cole, pages 413-487
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