The Olmec, who lived in Veracruz's gulf coast region during the Preclassic era, were the first sophisticated civilisation to emerge in Mesoamerica. San Lorenzo Tenochtitlán, La Venta, and Tres Zapotes are some of the most important Olmec sites.
As Pangaea disintegrated and North and South America split apart, Mesoamerica (Middle America) started to take shape. North and South America wouldn't reunite until around 3 million years ago. Due to the collision of two tectonic plates, which resulted in the eruption of volcanoes and the creation of islands, this reconnection occurred.
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