It was an always peace deity game... I've never played anything higher than Prince (and I have enough trouble with that right now), and I wanted to see if I set it as a Cultural only game (the way I tend to win in any game), with the settings I mentioned previously, if I had any chance... and for a long time, it seemed like I had no chance... then, apparently, everyone's economy crashed (mine did eventually, as well) but I pulled out the win.
I attribute the win to the fact that I only settled three cities and focused on nothing but culture, happiness, health and science; whereas, the AI seemed to treat it as any other game, amassing a good number of cities and huge armies. I realized after a while that I had pretty much stacked the deck against the AI (not knowing that the AI would treat it like any other game with wars and whatnot).