COLLEGE STATION, Texas — Scientists along Buttermilk Creek north of Austin, Texas, have found flint knife blades, chisels and other human artifacts lying in a soil layer nearly 16,000 years old — a discovery they say will rewrite a major chapter of ancient human history.
For one thing, it is now the oldest and arguably most credible site of human occupation in North or South America; but there's more.
The discovery, by Texas A&M archaeologist Michael Waters and others, pushes back by 2,500 years the time when traditional science thought humans entered the New World from Siberia and founded the native peoples of North and South America.
"This discovery ought to be like a baseball bat to the side of the head" to past theories, Waters said.
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