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Great Purification: Difference between revisions
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{{Era|Forerunner}} | {{Era|Forerunner}} | ||
[[File:HaloFiring.png|300px|thumb|right|A Halo ring is fired, wiping the galaxy of Flood and all sentient life.]] | [[File:HaloFiring.png|300px|thumb|right|A Halo ring is fired, wiping the galaxy of Flood and all sentient life.]] | ||
{{Quote|Activation is murder. A genocide larger than [this galaxy] has ever known. We are sworn to protect life, not destroy it! That is the [[Mantle]] we were given to carry.|The [[IsoDidact]], protesting the firing of the rings.<ref name="terminal">'''Halo 3''' - ''[[Terminal/Halo 3|Terminal 2]]''</ref>}} | {{Quote|Activation is murder. A genocide larger than [this galaxy] has ever known. We are sworn to protect life, not destroy it! That is the [[Mantle]] we were given to carry.|The [[IsoDidact]], protesting the firing of the rings.<ref name="terminal">'''Halo 3''' - ''[[Terminal/Halo 3|Terminal 2]]''</ref>}} | ||
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After the Flood appeared defeated by [[Prehistoric human civilization|early humanity]], the [[Builder]]s, led by [[Faber-of-Will-and-Might]] insisted that stronger measures needed to be put in place across the galaxy in case the Flood should ever return. They proposed the assembling of the Halo Array, enormous ringworlds that fire a wave with interstellar range that would purge the galaxy of Flood infection by killing all carbon and calcium-based lifeforms on which it fed. While this proposal was met with immediate outrage from [[Ur-Didact|the Didact]] and the [[Warrior-Servant]]s, the [[Librarian]] and her [[Lifeworker]]s reneged to the plan if environmental steps were taken to preserve as much of the galaxy's wildlife and races as possible for reseeding after the Array was fired. These two suggestions were approved and the Halo Array was assembled, designed as both a weapon of mass destruction and nature preserve. | After the Flood appeared defeated by [[Prehistoric human civilization|early humanity]], the [[Builder]]s, led by [[Faber-of-Will-and-Might]] insisted that stronger measures needed to be put in place across the galaxy in case the Flood should ever return. They proposed the assembling of the Halo Array, enormous ringworlds that fire a wave with interstellar range that would purge the galaxy of Flood infection by killing all carbon and calcium-based lifeforms on which it fed. While this proposal was met with immediate outrage from [[Ur-Didact|the Didact]] and the [[Warrior-Servant]]s, the [[Librarian]] and her [[Lifeworker]]s reneged to the plan if environmental steps were taken to preserve as much of the galaxy's wildlife and races as possible for reseeding after the Array was fired. These two suggestions were approved and the Halo Array was assembled, designed as both a weapon of mass destruction and nature preserve. | ||
The Flood eventually returned to the galaxy, but as the war escalated and the parasite spread even further, the Didact (now two individuals) remained steadfastly opposed to firing the rings. Both of them viewed galactic genocide as a violation of the [[Mantle]], the Forerunner code of doctrine. While the IsoDidact refused to fire on moral grounds, not wanting to kill billions of innocents, the Ur-Didact rejected the Halos on societal grounds, certain that the Great Purification would cause the end of Forerunner dominance over the galaxy. Both of them delayed activating the rings by attempting alternate plans to defeat the Flood, including the anti-Flood AI [[Mendicant Bias]] (who went rogue and defected to the Flood) and the creation of [[Promethean Knight]] droids, which were created from unwillingly transformed humans, thereby causing genocide to prevent genocide. Neither of these measures succeeded in defeating the parasite. | The Flood eventually returned to the galaxy, but as the war escalated and the parasite spread even further, the Didact (now two individuals) remained steadfastly opposed to firing the rings. Both of them viewed galactic genocide as a violation of the [[Mantle]], the Forerunner code of doctrine. While the IsoDidact refused to fire on moral grounds, not wanting to kill billions of innocents, the Ur-Didact rejected the Halos on societal grounds, certain that the Great Purification would cause the end of Forerunner dominance over the galaxy.<ref>'''Halo 4''' - ''Terminal''</ref> Both of them delayed activating the rings by attempting alternate plans to defeat the Flood, including the anti-Flood AI [[Mendicant Bias]] (who went rogue and defected to the Flood) and the creation of [[Promethean Knight]] droids, which were created from unwillingly transformed humans, thereby causing genocide to prevent genocide. Neither of these measures succeeded in defeating the parasite. | ||
By 97,445 BCE, the Forerunners were badly losing, most of their population had been lost, and the Flood had reached almost complete control of the galaxy. With much reluctance, the IsoDidact fired the Array, initiating the Great Purification. The blast resulted in the death of the Flood and everything else and everyone else in the galaxy, including the [[Librarian]] herself. | By 97,445 BCE, the Forerunners were badly losing, most of their population had been lost, and the Flood had reached almost complete control of the galaxy. With much reluctance, the IsoDidact fired the Array, initiating the Great Purification.<ref>'''Halo 3''' - ''Terminal 7''</ref> The blast resulted in the death of the Flood and everything else and everyone else in the galaxy, including the [[Librarian]] herself. | ||
The Great Purification was not the first time a Halo had been fired. A ring of the original array had been fired by the [[Master Builder]] at the [[Charum Hakkor system]] to test its effect on the native wildlife.<ref>'''Halo: Cryptum''', ''page 245''</ref> Later a pulse was fired on [[Janjur Qom]] to punish the [[San'Shyuum]] there who rebelled against the Forerunners.<ref>'''Halo: Cryptum''', ''page 192''</ref> At the [[Battle of the Capital]] Mendicant Bias took control of five of the nearby rings (which had been assembled for decommissioning) and fired them all.<ref>'''Halo: Cryptum''', ''page 307''</ref> The last use before the combined wave from the Array was at the [[Battle of the greater Ark]], when [[Omega Halo]] was fired, damaging a [[Precursor]] [[star road]] and wiping out all life in the [[Large Magellanic Cloud]].<ref>'''Halo: Silentium''', ''page 273''</ref> Neither of the Halos were used again until 2552, when the [[Jiralhanae]] [[Tartarus]] attempted to fire [[Installation 05]],<ref>'''Halo 2''', ''campaign level ''[[The Great Journey]]''</ref> followed a month later by [[John-117]] activating [[Installation 04B]] in order to cleanse the Ark of the Flood infestation there.<ref>'''Halo 3''', ''campaign level ''[[Halo (Halo 3 level)|Halo]]''</ref> | The Great Purification was not the first time a Halo had been fired. A ring of the original array had been fired by the [[Master Builder]] at the [[Charum Hakkor system]] to test its effect on the native wildlife.<ref>'''Halo: Cryptum''', ''page 245''</ref> Later a pulse was fired on [[Janjur Qom]] to punish the [[San'Shyuum]] there who rebelled against the Forerunners.<ref>'''Halo: Cryptum''', ''page 192''</ref> At the [[Battle of the Capital]] Mendicant Bias took control of five of the nearby rings (which had been assembled for decommissioning) and fired them all.<ref>'''Halo: Cryptum''', ''page 307''</ref> The last use before the combined wave from the Array was at the [[Battle of the greater Ark]], when [[Omega Halo]] was fired, damaging a [[Precursor]] [[star road]] and wiping out all life in the [[Large Magellanic Cloud]].<ref>'''Halo: Silentium''', ''page 273''</ref> Neither of the Halos were used again until 2552, when the [[Jiralhanae]] [[Tartarus]] attempted to fire [[Installation 05]],<ref>'''Halo 2''', ''campaign level ''[[The Great Journey]]''</ref> followed a month later by [[John-117]] activating [[Installation 04B]] in order to cleanse the Ark of the Flood infestation there.<ref>'''Halo 3''', ''campaign level ''[[Halo (Halo 3 level)|Halo]]''</ref> | ||
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{{Quote|This installation has a successful utilization record of 1.2 trillion simulated and one actual. It is ready to fire on demand.|[[2401 Penitent Tangent]]<ref>'''Halo 2''', campaign level ''[[Gravemind (level)|Gravemind]]''</ref>}} | {{Quote|This installation has a successful utilization record of 1.2 trillion simulated and one actual. It is ready to fire on demand.|[[2401 Penitent Tangent]]<ref>'''Halo 2''', campaign level ''[[Gravemind (level)|Gravemind]]''</ref>}} | ||
The biological effects of the rings had long term consequences on the galaxy's ecosystems. Because the Librarian could not rescue every species, all of the specimens left behind were wiped out and rendered their species extinct. Those species that had been saved on the Ark were reseeded afterward, but the gaps in the food chain were significant enough that during the [[dark time]] many more species went extinct due to their permanently altered environment. While the [[Conservation Measure]] did its best to eliminate any trace of genetic disruption, scars still remained in the fossil record. In [[2332]], scientists discovered a curious anomaly dated to [[Wikipedia:Late Pleistocene|Late Pleistocene]], in which no fossils dating to roughly 97,000 BCE were discovered on worlds colonized by humans. The [[Ross-Ziegler Blip]], as it was called, was initially dismissed as a random aberration caused by spatial distortion, out of doubt that an interstellar extinction event could have occurred simultaneously on every planet. After the Halos were discovered by humanity, the Blip was reinvestigated, its cause now identified as the | The Great Purification marked the end of the Flood-Forerunner war. Just before the firing, the galaxy had been teeming with Flood, who had progressed to an interstellar threat, consuming whole star systems, forming advanced Flood intelligences called [[Key Mind]]s, and able to interact with the fabric of the universe itself, halting slipspace travel across the galaxy. Immediately after the firing, the Flood was neutralized. Flood and sentient lifeforms on planets that had been seeded with [[solute]] beforehand were disintegrated.<ref>'''Halo: Silentium''', ''page 19''</ref> Forms in starships and non-soluted sites were killed but not melted, their bodies remaining but their nervous systems irreparably destroyed. The remaining Flood spores and combat forms that were left were taken to the Halos and other sites for study, in hopes that a cure could be found should the Flood ever return.<ref>'''Halo: Combat Evolved Anniversary]]''' - ''[[Terminal/Halo: Combat Evolved Anniversary|Terminal 6]]''</ref> | ||
The ongoing space battle of the Forerunners and the Flood, the [[Battle of the Maginot Sphere]], had its order completely reversed. Mendicant Bias' Flood-controlled fleet had been fighting with Offensive's Forerunner-and-mechanical fleet, but within moments the rogue AI suddenly found itself with ships without any living crew. Offensive used Mendicant's momentary confusion to gain the upper hand, commanding his remaining ships directly and destroying the majority of the Flood's fleet in under 90 seconds. Mendicant was subsequently captured and imprisoned at Installation 00.<ref>'''Halo 3''' - ''Terminal 6''</ref> | |||
The combined massacre of the rings and of the [[Battle of the Greater Ark]] reduced the Forerunner population to less than a fraction of what it had once been. With no hope of rebuilding their lost empire, the remaining Forerunners, led by the [[IsoDidact]], left the Milky Way to built a new home elsewhere. All species brought to the remaining Ark were [[Reintroduction|reintroduced to their homeworlds]] at [[Technological Achievement Tiers|a pre-Industrial Tier 6 level]], and roughly 90 millennia passed before any of them became space faring again.<ref>'''Halo: The Flood (2010):''' ''Adjunct''</ref> | |||
The biological effects of the rings had long term consequences on the galaxy's ecosystems. Because the Librarian could not rescue every species, all of the specimens left behind were wiped out and rendered their species extinct. Those species that had been saved on the Ark were reseeded afterward, but the gaps in the food chain were significant enough that during the [[dark time]] many more species went extinct due to their permanently altered environment. While the [[Conservation Measure]] did its best to eliminate any trace of genetic disruption, scars still remained in the fossil record. In [[2332]], scientists discovered a curious anomaly dated to [[Wikipedia:Late Pleistocene|Late Pleistocene]], in which no fossils dating to roughly 97,000 BCE were discovered on worlds colonized by humans. The [[Ross-Ziegler Blip]], as it was called, was initially dismissed as a random aberration caused by spatial distortion, out of doubt that an interstellar extinction event could have occurred simultaneously on every planet. After the Halos were discovered by humanity, the Blip was reinvestigated, its cause now identified as the disintegration of most biomass in the galaxy during the Great Purification.<ref>'''[[Halo: Evolutions]] - Essential Tales of the Halo Universe''', "[[From the Office of Dr. William Arthur Iqbal]]", ''page 519''</ref> | |||
An unexpected effect of the Halos' firing was that Precursor artifacts were destroyed as well. This was due to the Halos interacting with [[neural physics]], which held Precursor constructs together and made them nearly unbreakable. Firing a Halo in the vicinity of the artifacts would disrupt their atomic binds and thus disintegrate the relics. While initially viewed as an unfortunate side effect, as when a ring was tested at Charum Hakkor, this disruption turned into a small advantage for the Forerunners in their war against the Flood, letting them use the Halos to destroy Precursor star roads that were being controlled by the parasite. When the Great Purification occurred, every Precursor artifact in the Milky Way was destroyed, leaving no trace of them for modern civilizations. Shortly before the blast, the Gravemind revealed that the [[Domain]], an immaterial dimension used by the Forerunners as a repository of knowledge, itself was a Precursor creation and so would be wiped out with the Flood. As such, when the rings fired the blast erased 100 billion years worth of stored knowledge and recorded history.<ref>'''[[Halo: Silentium]]'', ''pages 322-323''</ref> | An unexpected effect of the Halos' firing was that Precursor artifacts were destroyed as well. This was due to the Halos interacting with [[neural physics]], which held Precursor constructs together and made them nearly unbreakable. Firing a Halo in the vicinity of the artifacts would disrupt their atomic binds and thus disintegrate the relics. While initially viewed as an unfortunate side effect, as when a ring was tested at Charum Hakkor, this disruption turned into a small advantage for the Forerunners in their war against the Flood, letting them use the Halos to destroy Precursor star roads that were being controlled by the parasite. When the Great Purification occurred, every Precursor artifact in the Milky Way was destroyed, leaving no trace of them for modern civilizations. Shortly before the blast, the Gravemind revealed that the [[Domain]], an immaterial dimension used by the Forerunners as a repository of knowledge, itself was a Precursor creation and so would be wiped out with the Flood. As such, when the rings fired the blast erased 100 billion years worth of stored knowledge and recorded history.<ref>'''[[Halo: Silentium]]'', ''pages 322-323''</ref> | ||