![]() Plant cultivation begins in central Mexico. Sophisticated forms of toolmaking known as Clovis technology appear.ĩ,000 b.c.e. Glaciers begin to recede and many large animal species become extinct.ġ0,000 b.c.e. Ancestors of the Indians enter the Americas. The First Americans Timeline, Digital History ID 2928Ĩ0,000-15,000 b.c.e. ![]()
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