Mesoamerican Long Count calendar 20, 2012 (Gregorian Calendar), followed by the start of the 14th b'ak'tun, 13.0.0.0.0, on December 21, 2012. There are only two references to the current creation's 13th b'ak'tun in the fragmentary Mayan corpus: Tortuguero Monument 6, part of a ruler's inscription and the recently discovered La Corona Hieroglyphic Stairway 2, Block V. Maya inscriptions occasionally reference future predicted events or commemorations that would occur on dates that lie beyond 2012 (that is, beyond the completion of the 13th "b'ak'tun" of the current era). Most of these are in the form of "distance dates" where some Long Count date is given,
Adoption of the Gregorian calendar when a 13th Julian leap day was skipped in 1900, so the tax year in the United Kingdom still begins on 6 April. The European colonies of the Americas adopted the change when their mother countries did. In 1752, the British colonies (which as stated above adopted the New Style calendar in that year) extended as far west as the Appalachian Mountains. New France and New Spain had adopted the new calendar in 1582. In Alaska, the change took place after the United States purchased Alaska from Russia. Friday, 6 October 1867 was followed by Friday, 18 October. Instead of