The prophecy of the year 2012 being the end of the world was based on South American calendar cycles. That year, on December 21, the 13th b’ak’tun cycle ended (each cycle lasts about 394 years).
On this day in 1790, the Aztec Sun Stone, also known as the “Calendar Stone”, was excavated on the main square of Mexico City. The stone has a diameter of about 3.7 meters and weighs about 24 tons. It was discovered during repairs on the local cathedral. In the center is a carved face of the solar deity and the surrounding figures symbolize time periods. The Aztecs had a relatively complicated system of time computation, simultaneously counting cycles of 13 and 20 days. These cycles coincided only every 52 solar years.
It is interesting that a prophecy of the year 2012 being the end of the world was based on the South American calendar cycles. That year, on December 21, ended the 13th b’ak’tun cycle (each cycle lasts about 394 years), which some unreasonably considered the world’s end. The users of this calendar themselves, however, did not think it should be the end of the world, but simply the beginning of the 14th b’ak’tun cycle.