2012 phenomenon
The 2012 phenomenon was a range of eschatological beliefs that cataclysmic or transformative events would occur on or around 21 December 2012. This date was regarded as the end-date of a 5,126-year-long cycle in the Mesoamerican Long Count calendar. Mayan scholars stated that no classic Mayan accounts forecast impending doom. Astronomers rejected the various proposed doomsday scenarios as pseudoscience.