From Halopedia, the Halo wiki
- January 1: Serina awakens engineering specialist Violeta Maldini in order to perform operations and maintenance on the UNSC Spirit of Fire. Specialist Maldini is attacked by a Flood Pod infector and is overtaken by the parasite. Serina locks the resultant combat form in Cryo-bay Foxtrot 7.
- January 2: Serina notes that while the Flood form does not appear to be experiencing suffering, it does seem like it is hungry.
- January 3: The combat form begins to morph to become more like a carrier form.
- January 4: The Flood disperse new Pod infectors and overtake more crew members in an attempt to break quarantine. Spartan SCPO Jerome-092 is awoken and exterminates all infected personnel, eliminating the Flood presence on the Spirit of Fire. After the event, Serina starts her final dispensation, killing herself.
- July 27: Operation: PROMETHEUS. Most of Spartan-III Alpha Company destroys a Covenant shipyard on asteroid K7-49, but all 300 of the participating Spartans are killed in the process.
- July 30: Kurt discovers the fate of Alpha Company and acquires the candidates for Beta Company.
- An insurrection takes place on Mamore in either 2536 or 2537, resulting in the insurrectionist forces being put down by the Spartan-IIIs of Alpha Company.
- Conflicts in the Bonanza asteroid belt and the Far-gone colony platforms are fought in either 2536 or 2537.
- The Battle of New Constantinople is fought in 2537.
- The Battle of Leonis Minoris ends in a pyrrhic UNSC victory as two of the Leonis Minoris colonies are glassed and a third saved.
- The Battle of New Harmony takes place, resulting in a rare UNSC Navy victory and the discovery of Covenant shipyard K7-49.
- The 2nd class of Spartan-IIs are conscripted. Of which are Yasmine Zaman and Nicole-458.
- Halo: Ghosts of Onyx, pages 83-86
- Twitter: Today in Halo - 7/27/2537
- Twitter: Today in Halo - 7/30/2537
- Halo: Ghosts of Onyx, page 88
- Halo: Ghosts of Onyx, page 81
- Halo Encyclopedia, page 36 (2011)
- Halo: Evolutions, "The Impossible Life and the Possible Death of Preston J. Cole", page 470
- Halo Encyclopedia, page 272 (2011)