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To: longnshort who wrote (42578)4/30/2013 3:37:13 PM
From: DallasKevin  Read Replies (3) | Respond to of 85487
 
en.wikipedia.org

The earliest human remains in Mexico are chips of stone tools found near campfire remains in the Valley of Mexico and radiocarbon-dated to circa 23,000 years ago. [38] Mexico is the site of the domestication of maize and beans which caused a transition from paleo-Indian hunter-gatherers to sedentary agricultural villages beginning around 7000 BCE.

I think you are the one who needs to study up....