I'm sure most of us are familiar with the SWTOR lore, and those that aren't probably don't care enough to read up.
This stuff is old, but it's a very efficient break down of all the events that lead up to the game. It goes back about 1300 years before the game.
Sorry if this is posted somewhere. I couldn't find anything and it's kind of ducked off on the official site.
NOTE: Best if viewed from right to left.
http://www.swtor.com/info/holonet/timeline