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Between 1500 BCE to 400 BCE
Central America.
Olmec
Chichen Itza
One of the first people to ever live in Central America are the Olmec. The Olmec are sometimes called the mother culture of Central America, for the next civilizations to prosper after the decline of the Olmec were influenced by the Olmec religious techniques and other things. After the Olmec came the Maya civilization and then the Aztec civilization.
The first ancient indigenous people who lived in Central America were the Olmec's. The Mayans were also native to Central America.
The Olmecs of Central America
Native Americans, probably the Olmec people (South Central Mexico).
Yes. Along the shores of the Mexican Gulf Coast and on central and southern Mexico.
The Olmec people first become known to us as a pre-Columbian civilization in the tropical lowlands of what is now south-central Mexico from as early as 1500 BC. The cultures from which the Olmec derived flourished in the area as early as about 2500 BC, but the first clearly Olmec center appears within the city of San Lorenzo Tenochtitlán around 1400 BC. The Olmec cannot be said to have "first settled" anywhere, because they developed from communities already in place in the region.
The Olmecs were an ancient Mesoamerican (meaning Middle America) civilization that lived between 1400 BCE to 400 BCE. They lived in south-central in Mexico, what is now roughly the states of Veracruz and Tabasco. A picture of the "Olmec Heartland" is shown here http://en.wikipedia.org/wiki/File:Olmec_Heartland_Overview_4.svg.
The Olmec civilization created a culture that greatly influenced the Aztecs.