What do I need to know?

Ok, I have no idea what any of you are talking about story wise. Im pretty well educated about the Covenant, their history, and the Human-Covenant war. But could someone please list the important parts about forerunners, original humans, precursors, and glasslands and all that.

Beside terminals in CEA, and Halo 3, none of that has really been touched on or explained in game, so if Halo 4 brings up these subjects, I don’t want to be the last to know what’s going on. So fill me in on this.

Well if you want to cheat you can just read the plot on Halopedian and follow the important links. But I would recommend just buying the books and reading them.

Cryptum
Primordium
Glasslands

You can give this a try. I tried to summerize some key bits of story info from the books.