Mesoamerican calendars was of ritual significance to a number of Mesoamerican cultures. A third major calendar form known as the Long Count is found in the inscriptions of several Mesoamerican cultures, most famously those of the Maya civilization who developed it to its fullest extent during the Classic period (ca. 200–900 CE). The Long Count provided the ability to uniquely identify days over a much longer period of time, by combining a sequence of day-counts or cycles of increasing length, calculated or set from a particular date in the mythical past. Most commonly, five such higher-order cycles in a modified vigesimal (base-20)
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