Is the Aztec calender end on 2012 is that the end of the world.?

Answer 1

First off, it's the MAYAN calendar everyone's talking about, not the Aztecs. The Aztecs didn't use the Long Count.
And the Long Count calendar doesn't end on 12-20-21. It rolls over from 12 Baktuns to 13 Baktuns (a Baktun is about 400 years long) like ours did going from 1999 to 2000.
On that day there is a once in 26,000 year astronomical alignment, a conjunction between the sun and the Milky way at Dawn which signals the beginning of a new world age.
Read "Maya Cosmogenesis 2012" by John Major Jenkins for a lot more on this subject. Read my 2012 article on my Jaguar Nights blog or my regular website for other information on that day.