Halo Lore Refresher

So go ahead and ask Halo Lore Questions here. Note, the easiest way to learn halo lore is to play the games/read the books (if you arrange the games in chronological order by the story line, it'd go Halo Wars, Halo Reach, Halo CE, Halo 2, Halo 3 Odst, Halo 3, Halo 4.). Another great source is the Halo wiki, found here; http://halo.wikia.com/wiki/Main_Page

Anyones, post questions, theories, and ask for clarification on anything here.