<http://schema.org/about>
"Scholars agree that the ancient Maya would not have seen Dec. 21 as apocalyptic, but there are rumors that a cosmic event may end life on Earth on that day."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/2012-mayan-apocalypse-rumors-have-dark-side-nasa-warns>