A timeline of all major events in the Halo universe from the time of the Forerunners through the rule of the Created.
The discovery of Bastion was the culmination of a series of events involving 343 Guilty Spark and Rion Forge that led to the discovery of the Librarian’s shield world.
The Battle of Cassidy III was a conflict between Spartan-IV fireteam Alpha-Nine, allied with United Rebel Front forces on Cassidy III, and the Promethean forces under command of the Created late in 2558.
Operation: WOLFE was a UNSC mission on the planet Reach in October 2559 to recover several cryobins from CASTLE Base under Menachite Mountain for Doctor Catherine Halsey.
The Battle of Epsilon Clarion was a conflict on the Ark between the Keepers of the One Freedom, the Covenant, and the Banished to activate the Halo Array in late 2559.
The Installation 07 Conflict was a battle between UNSC forces led by John-117 and the Banished on Zeta Halo between December 12th, 2559 and May 31st, 2560.
