From Halopedia, the Halo wiki
- June 19: Dr. Catherine Halsey decides upon the final name of the SPARTAN-II program, up until then tentatively referred to as "ORION Project Generation Two".
- Initiation of Operation: TREBUCHET. 
- Brain mutations are specifically outlawed by the UNSC MED CORPS.
- Colonel Ponder leads a force into Elysium City to retrieve an 'Innie'. A confrontation develops and due to an overeager sniper, a grenade is detonated causing Ponder to lose his arm and be demoted.
- Latest possible release of Pelican and Warthog series to the UNSC.
- Alexander becomes the sixth captain of the UNSC Spirit of Fire