The Halo Timeline is a subsection included in the main menu of the Halo Wars game that shows the timeline of the Halo universe as it pertains to Halo Wars. The events are acquired by retrieving Black Boxes within the campaign levels of the game, as well as winning skirmish matches using different leaders.
Arcadia Colony opens the DSRA (Deep Space Research Array), designed to research and study extremely high-gravity events, such as black holes and other areas that exploratory vessels cannot visit directly. The DSRA is eventually destroyed by the Covenant during the initial attack on Arcadia in 2531.
Project ORION, the original SPARTAN project - the first attempt by the Colonial Military Administration to create and train teams of supersoldiers for covert military operations in the Outer Colonies - is deactivated. Though the Spartans are effective, their abilities fall short of original expectations, and they are far too expensive to develop and field. The soldiers in the program are reassigned to various special operations units.
Dr. Catherine Halsey and her aide Lt. Jacob Keyes covertly inspect one of the first test subjects for the mysterious "SPARTAN-II" project. The prospective candidate - a six-year-old child named "John" - is ideal for the project. Halsey arranges for the subject to be covertly conscripted.
Halsey's SPARTAN-II project begins, with primary research conducted on the planet Reach in the Epsilon Eridani system. Seventy five children of both sexes are subjected to an intense program of physical and mental retraining and technological augmentation, including reinforced skeletal structure and improved musculature.
Unlock Condition: Collect Black Box on Arcadia City.
Captain Alexander, the last civilian captain of the Spirit of Fire, retires from active duty at the conclusion of the Verent mission. The ship is requisitioned by the UNSC and scheduled for refit.
Spirit of Fire completes an extensive refit at the Reach orbital shipyards before entering active military duty as a ground support vessel, initially detailed with providing ground support for the upcoming operation TREBUCHET.
Edict of the Office of the High Prophet of Restraint[edit]
It is known the Kig-Yar ship Pitiless has brought forth an Unclean Being's corpse. Hear now, all Kig-Yar vessels are to be searched. Let faithful Sangheili lead teams of Unggoy to all Kig-Yar ships and seek further evidence of the Unclean. It is done.
Edict of the Office of the High Prophet of Tolerance[edit]
Hear now that 500 teams are to be formed to study the language of the Unclean. Each team to consist of the most clever and most educated Unggoy and Sangheili. These teams to speak only the Unclean language among themselves. The Unclean language to be taught to all military strike teams, that the foe shall be vulnerable.
