2540
From Halopedia, the Halo wiki
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- 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 at the time Commander Jacob Keyes when he realized Covenant warships were inbound for [[Sigma Octanus IV|Sigma Octanus.]
- September 9th:Taylor H. "Dutch" Miles enlists in the UNSC Marine Corps.
