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There were several of them, but the most important include the Olmecs, Teotihuacans, Aztecs and Mayans.
The Olmecs The Olmecs
Since the first civilizations such as Olmecs and Teotihuacans appeared in Mexico as early as 1500 BC.
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the Olmecs
They were neatly planned.
Olmecs and Teotihuacans are some of them.
Ideas and beliefs were spread to different cultures
the early civilizations began in Africa but most exact in Zambia
Among the earliest civilizations in the Western Hemisphere is that of the Olmecs, as early as 1500 BC, in eastern Mexico. This was preceded by the people called the Mokaya (corn people) in southern Mexico and Guatemala, one of the first agricultural societies.
.The degree of comparison for early is earlier
Greece was not centered around a river valley.