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Mesoamerican Long Count calendar

2:41

11th August 3114 BCE: Start of the Mesoamerican Long Count Calendar

3:28

The New Mayan Long Count Calendar

1:17

Apocalypse now or maybe later as Mayan long count calendar ends

2:19

Breaking the Maya Code #4: The Maya Calendar

1:14

Long Count

The Mesoamerican Long Count calendar is a non-repeating, vigesimal (base-20) and base-18 calendar used by several pre-Columbian Mesoamerican cultures, most notably the Maya. For this reason, it is often known as the Maya Long Count calendar. Using a modified vigesimal tally, the Long Count calendar identifies a day by counting the number of days passed since a mythical creation date that corresponds to August 11, 3114 BCE in the Proleptic Gregorian calendar. The Long Count calendar was widely used on monuments.
    • Long Count periods 

    • Earliest Long Counts 

    • Correlations between Western calendars and the Long Count 

    • 2012 and the Long Count 

    • Converting between the Long Count and western calendars 

    • Piktuns and higher orders