Well hey, I was just visiting the temple of Chichen Itza!
SIT ON MAH LAP AND LET MEH TELL YEW A STOREH, BOY.
The temple has 2 calenders, one is about 3 months (or four?) long, for women to follow for their pregnancy (I guess they had a mating period.) The other closely follows our Gregorian calender, but has days of 90-ish, several months, and one extra with 5 days (465...?). The Mayan calender ends on March 21st 2012 for no apparent reason, but there are several phenomena that occur on this day that baffle scientists as to how the Mayans could predict them:
1. There will be a full solar eclipse.
2. A planetary alignment will occur.
3. The biyearly phenomena of
a snake going down the Chichen Itza Temple will occur. This happens every equinox.
It is still unknown as to why the Mayans chose this date. Some random conspiracy immediately started screaming
"OH GOD, OBVIOUSLY WE'RE ALL GUN DIE IN SOME METERO SHOWER. OBVIOUSLY. RIGHT?No.
Astronomers would have seen that coming.
tl;dr, Shut up, it won't happen.