Mesoamerican calendars prognostic power for the coming year. Therefore, People tried to do as little as possible on these days, and a person who was born during the nemontemi was considered unlucky. Since both the 260-day and the 365-day calendar repeat, approximately every 52 years they reach a common end, and a new Calendar Round begins. This 52-year cycle was the most important for most Mesoamericans, with the apparent exception of the Maya elite until the end of the Classic Era, who gave equal importance to the Mesoamerican Long Count calendar. According to their mythology, at the end of one of these
Mesoamerican cosmovision and adherence to calendar systems. Mesoamericans did not understand human sacrifice as a malicious act, but rather sacrifices were carried out in an effort to renew and center their world, as well as pay debts to the gods. Mesoamericans carried out ritual sacrifice in order to balance, center, and renew their cosmo-magical world, which hinged upon ever-present duality: the human and the divine (the earth and the cosmos). Cosmovision is understood as one of the structures that is found throughout Mesoamerican history. It is evident that the concept was one adopted in varying forms by all Mesoamerican cultures, and aided