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I N T R O D U C T I O N

The processes of sedentarization and agricultural invention in Mexico are over eight thousand years old. Mexicans belong to one of the oldest civilizations in the world, with an independent origin. However, this great history, which is "Our History", is almost unknown to the majority of Mexicans. The millions of people which existed prior to the invasion, "The old grandparents", disappeared from memory as of 1521 through colonization mechanisms.

The total destruction of the city of México-Tenochtitlan, one of the most technologically advanced in the world of the time, is symbolic of devaluation and cultural denial, depicting things to come. It is only at the end of the last century when subtly its presence begins to be "rediscovered".

Since the conquest, however, what little is known of this history, has always been in the hands of the victors and now in the researchers pens, who by the way, the vast majority are foreigners.

Despite the fact that our ancestors civilization, is as ancient and important as the China and India civilizations, after five hundred years it continues to be seen as "primitive" worshipers of the water, the Sun and conducting bloody ceremonies; not only by the "experts", but also by Mexicans.

The old grandparents are denied any possibility of having a complex and sophisticated philosophical structure, as the basis on which the great scientific, artistic, social and

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