Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The 2012 phenomenon comprises a range of eschatological beliefs according to which cataclysmic or transformative events will occur on 21 December 2012. This date is regarded as the end-date of a 5,125-year-long cycle in the Mesoamerican Long Count calendar. Various astronomical alignments and numerological formulae have been proposed as pertaining to this date, though none have been accepted by mainstream scholarship. Learn about the 2012 doomsday phenomenon and its predictions in this book.