"Hernán Cortés' arrival in Mexico in 1519 coincided with the year in the Mayan Calendar when it was predicted that the pale-faced man-god Quetzalcoatl would return to reclaim the city of Tenochtitlán. The Aztecs therefore assumed Cortés to be the legendary man-god, which assisted him in capturing the city and thence Mexico."

Source: http://duggmirror.com/offbeat_news/Top_15_Strangest_Coincidences_3/

Do you think it's at all possible that fundamentalists/insane people/the media will hype up the "great change" or world ending on December 21st 2012, to the point that it will become a self-fulfilling prophecy? Will people will panic, and cause additional economic stress because of the predictions, or will some crazy fundamentalist or group of fundamentalist bomb or explode something that will be classed as the "great change"?