It's some seriously crazy stuff, but I'm starting to read about the 12/21/12 doomsday prophecy. For example, its the date that the Mayan calendar ends, along with the Chinese I Ching. In addition, Nostradamus and many others have prophecy's about 12/21/12 being the end of days. Albert Einstein said that there would be a Polar Shift- meaning that the north and south pole placements would be moved and cause great earthquakes, tsunamis, hurricanes, and other major natural disasters.
You can see the History's channel tv episode here:

http://www.youtube.com/watch?v=XAtgPaggeTM


So, what do you guys think?