This paper is on the country of Mexico. "There is evidence of human existence in Mexico since 20,000 years BC" (Mexican-embassy 1). Northern Mexico was actually populated with people who were hunter-gatherers. In the South there were agricultural societies. "Even though in the vast Mesoamerica region (a term used by scholars to designate peoples which occupied the central area of Mexico down to Guatemala and Honduras to the South), many different peoples had their own ethnic and linguistic differences" (Mexican-embassy 1). They had their own structure of government. They had a calendar that consisted of 365 days. They built pyramids. Their religion had the same concept of cosmic duality - the beginning and the end.