2006

==Real-World Events==
===April===
*April 25: Volume 2 of the Halo 2: Original Soundtrack was released.
===May===
*May 12: The Halo 3 Announcement Trailer was first shown at E3 2006.IGN.com: E3 Central
*May 17: The discovery of the extrasolar planet HD 69830, which the Kig-Yar homeworld Eayn supposedly orbits, was announced.SPACE.com: Planets Found in Potentially Habitable Setup
===July===
*July 19: The Halo Graphic Novel was released.
===September===
*September 27: The Halo Wars Announcement Trailer was first shown at the Microsoft X06 media briefing.
===October===
*October 31: The novel Halo: Ghosts of Onyx was released.
===December===
*December 4: The Starry Night trailer for Halo 3 was released.
==Sources==