2540


 * Lieutenant Commander Fhajad-084 wrote the UNSC Astrophysics Journal 034-23-01 on May 097, 2540 (Military Calendar). This paper was used 12 years later in 2552 by Commander (at that time) Jacob Keyes when he realized Covenant warships were inbound for Sigma Octanus IV.


 * The Outer Colony world of Biko is Glassed by the Covenant.

September 9th

 * Taylor H. "Dutch" Miles enlists in the UNSC Marine Corps.