2012 December 21 Mayan Date Prophecy
In The Mystery of 2012, Robert K. Sitler, Professor of Latin Studies at Stetson University in DeLand, Florida, says that the December 21, 2012 date is a 4 Ahau K’atun date which occurs approximtely every 256 years.
During a previous 4 Ahau K’atun in AD 987, a historical figure known as K’uk’ulk’an appeared. In the 1500s the date might have referred to the arrival of the Spanish.