*** The most famous prediction is the Mayan one that predicts December 21, 2012 as the end of the world. Technically, the calendar began on August 13, 3114 BC and the cycle it asserted ends in December 2012. Its longevity is testament the fascination that the Mayan calendar has evoked. Need it be said that Mayan civilization is no more, so in that sense it was accurate, but off by several thousand years. ***