From Halopedia, the Halo wiki
- Jane-A203, a future SPARTAN-III, is born, as are the youngest members of Alpha Company.
- Jake Courage begins his career as a photo journalist on Reach.
- Commander Dmitri Zheng rams his frigate into a Covenant destroyer. He avoids court-martial because the disabled destroyer is subsequently destroyed by MAC fire. Whilst he is away, his home world is glassed.
- SPARTAN Soren-066 is assigned to a supposedly temporary desk job on Reach. While stationed at this job, he meets Partch, an insurrectionist who eventually changes Soren's allegiance.
- The Type-27 Exoatmospheric Multi-role Fighter is first encountered by UNSC personnel.
- Pinar Çelik disappears from all records around this year.
- March 20: Benjamin M. Nunez is born on Mars.
- April 13: Sarah Palmer is born on Luna.