An Essay About Mesaomerican Culture, Part One. The Mesoamerican term evokes both a region as an epoch. The region is a mainland, which today, it limits to north with currents of the rivers: Panuco, Lerma, and Sinaloa, at Mexico, And to south, it limits with frontier north of Panama. The epoch began with the first prehistoric colonies, and ended with Spanish conquest of Aztec empire in 1521 A.C. For to know what happened in Mesoamerican period, there are two primary souces. The first are the interpretations about arqueological studies, that have been done, The second are the works of writers, who were witness of the Spanish conquest and colonization, and other translation works to Spanish, in where natives did narations in Nauatl, about their history and custom.