Yep. People thought it was gonna end on Decemeber 12th this year too. And someone also thought it was gonna end sometime in October because scientists made this atom smasher thing that would reinact the Big Bang theory. People thought it would destroy everything when it got turned on. xD;;;
Yeah, I know. >.>; Because the Mayan Calender says so.
The only reasoning I have for that is that 12/12/12 is the LAST year we'll ever see the same number show three times in the date.
So it's a big deal. People though 6/6/6 was gonna be the last day because it's the devil's number.
There's other theories for while the world will end in 2012, but I think scientists and such would be making a MUCH bigger deal about it if it were true.