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 heavily during the Colonial Period that they used their origin story as justification to claim native lands. Ancestor worship is a common theme in Mesoamerican cosmovision. The northern, Nahautl-speaking people all shared a common origin story, which is depicted in the Mapa de Cuauhtinchan. This map serves not only to center the Mesoamerican world through the stories of its ancestors and rulers, but also depicts urban centers, which reflect worldmaking. Finally, the Mapa de Cuauhtinchan also reveals ceremonial rituals, an essential component of worldrenewing. All of these themes are clearly important to native Mesoamericans right up through the Colonial Period.