Have you ever heard of George Washington's "Son Of The Republic" dream? I don't know if its fabricated BS or not, but it's a pretty interesting yarn, and goes something like this:
Once George had a strange dream, where an angel came to him and said: "Son of the Republic, Behold!"
He was shown a map of North America with a dark cloud over the east cost- it represented the war of independence. The cloud clears eventually.
The Angel repeats itself, and a black cloud floats slowly and reluctantly over from Africa, then covering the US - the civil war over slavery
The cloud clears, cities/lights spring up from sea to shining sea

, and then the map widens to show the whole world.
The Angel repeats its line. Little clouds start forming all across the Old World, then they unite and come to cover all of America for a long time, but then a brilliant divine light supposedly comes to break up the cloud and the US lives happily ever after.
Now that 3rd cloud could be seen as a combo of Peak Oil, the rise of the Euro, a Eurasian Alliance (which Richard Heinberg says would be a nightmare for the US), American arrogance and pre-emptive war in the Old World eg Iraq, and so on. But I am not sure if Washington even had such a dream, and even if he did, who is to say that the above interpretations are correct, or if the dream has a correct interpretation at all ?
Meanwhile check out
www.geocities.com/Athens/Oracle/9941/ for a loooooong list of failed end-time prophecies, (including Nostradamus' "1999 and seven months" prediction which so many people pissed their pants over but never came to pass by any credible stretch of the imagination)