2537


 * The Insurrection of Mamore takes place on Mamore in either 2536 or 2537, resulting in the Insurrectionist forces being put down by the Spartan-III 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.
 * 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.
 * Beta Company of the Spartan-III's is authorized.
 * The 2nd class of Spartan-IIs are conscripted. Of which are Yasmine Zaman and Nicole-458.
 * Construction of the begins around this time.