Mesoamerican Long Count calendar Mesoamerican Long Count calendar 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 (or Mayan) 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. The two most widely used calendars in pre-Columbian Mesoamerica, were the 260-day Tzolk'in
History of a Voyage to the Land of Brazil the Tupinamba people and details the modifications they make to their bodies, as well as their comfortability with being completely nude. Lery describes the constitution of the average Tupinamba person: Léry goes on to describe that some individuals that he encountered lived well beyond one hundred years old (with respect that the Tupinamba people had a different Calendar than the Gregorian Calendar), and their elders are slow to develop grey or white hair. When describing the skin tone of the average Tupinamba person Lery states Léry then discusses how the Tupinamba people are completely comfortable with being naked, especially the