According to an archeologist who recently participated in archeological work in Mexico, One of the most ancient civilizations in the Americas, the Black Olmecs developed a calendar that goes back to about 3,113 years Before Christ. The archeologist who appeared on the Art Bell show made that point.
The ancient "Olmecs" of Mexico and Mesoamerica are one of the most intriguing civilizations of the Americas. In fact, they are the first civilization in Mexico and it was from them that all other civilizations in Mesoamerica followed.
Yet, the fact that the Olmecs were most likely a Black civilization of African origins has not been made public and the "Indian" elements in Mexico have gained more prominence to the extent that the Negroid substrata of the ancient Mexican/Mesoamerican civilizations has been kept hidden.Yet, over the past many years, various levels of proof have been found linking the "Olmecs" to Africans in the Western part of Africa