2011

Real-world events

 * January 4: Halo: Cryptum, the first novel in The Forerunner Saga by Greg Bear, is released.
 * February 23: Issue #4 of Halo: Fall of Reach - Boot Camp is released.
 * March 15: The second DLC for Halo: Reach, the Defiant Map Pack, is released.
 * March 30: The hardcover collection of Halo: Fall of Reach - Boot Camp is released.
 * April 20: Issue #1 of Halo: Fall of Reach - Covenant is released.
 * June 6: Halo 4 and Halo: Combat Evolved Anniversary are announced at Microsoft's Media Briefing at E3 2011.
 * July 4: Halo: The Essential Visual Guide is released.
 * July 13: Issue #2 of Halo: Fall of Reach - Covenant is released.
 * September 7: Issue #3 of Halo: Fall of Reach - Covenant is released.
 * September 19: An updated edition of the Halo Encyclopedia is released.
 * October 18: Halo: The Great Journey: The Art of Building Worlds is released.
 * October 19: Issue #4 of Halo: Fall of Reach - Covenant is released.
 * October 25: The novel Halo: Glasslands is released.
 * November 15: Halo: Combat Evolved Anniversary is released.
 * December 14: The hardcover collection of Halo: Fall of Reach - Covenant is released.