[Xander]

Right, the Mayans never predicted that the world would end in 2012. They celebrated the end of a full cycle(Which 21/12/12 is.)

Despite the publicity generated by the 2012 date, Susan Milbrath, curator of Latin American Art and Archaeology at the Florida Museum of Natural History, stated that "We [the archaeological community] have no record or knowledge that [the Maya] would think the world would come to an end" in 2012.[12]
"For the ancient Maya, it was a huge celebration to make it to the end of a whole cycle," says Sandra Noble, executive director of the Foundation for the Advancement of Mesoamerican Studies, Inc. in Crystal River, Florida. To render December 21, 2012, as a doomsday or moment of cosmic shifting, she says, is "a complete fabrication and a chance for a lot of people to cash in.

Nor did the King at the time believe it would end in 2012.

The king Pacal of Palenque predicted that on this date the eightieth Calendar Round anniversary of his accession will be celebrated, suggesting he did not believe the world would end in 2012.[11]