Page:Historia Verdadera del Mexico profundo.djvu/7

 agriculture, since humans ceased being nomadic hunter—gatherers to remain, for generations, in the same place. Thus, they were able to observe, experiment and discover the miracle of plant cultivation, philosophy, science, crafts, art and religion. In fact, Egypt and Mesopotamia began settlement processes and agricultural techniques, approximately eight thousand years BCE; followed at about 6,000 years BCE by China, India, Mexico and the Andean region. (Leon Portilla. 1980).

These six civilizations are the most ancient, but above all, they had an autonomous development; that is, none received external cultural contributions. They were able to access, invent and develop all their knowledge base without external input. Thus, Mexico started its Cultural development approximately six thousand years B.C.E. with the discovery of agriculture, but above all, we must emphasize, the hybridization of corn, and reached surprisingly ____________________