Thousands of years ago ancestors of the American Indians crossed the Bering Strait from Asia and entered the Western Hemisphere. Since then, they have fanned out across North and South America. The single language that the original Indian settlers spoke has since split into many Indian “language families.” Assume that a language family develops into 1.5 language families every 6000 years. There are now 150 Indian language families in the Americas. About when did the first American Indians arrive?
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