Who were the Olmec?
The Olmec had been the primary institution of human beings to reach and settle in Central America. They made the place their domestic through 1200 BC. They had a calendar and calculated time through reading the celebs and a written language which they engraved on stone. Later civilizations learnt many stuff from them, together with a way to construct houses. This is why they are the mom way of life of Mesoamerica.
