The discovery may be the strongest evidence yet that people reached the Americas thousands of years earlier than many archaeologists thought.
Between 23,000 and 21,000 years ago, people squished through the mud along a lakeshore in what is now New Mexico, alone and in small groups, leaving behind their footprints. Or at least that’s the conclusion of a new paper that Oregon State University, Corvallis, archaeologist Loren Davis calls “potentially groundbreaking.” If the dates are right, the discovery would be the strongest evidence yet that people reached the Americas during the middle of the last ice age, thousands of years earlier than many archaeologists thought.
“If that’s true … it’s going to be a revolution in the way that we think about archaeology in the Americas,” says Davis, who wasn’t involved with the work. It might reignite debates about how people first reached the continent from Asia. But Davis and others would like corroboration of the surprising dates before they rewrite their understanding of when and how people arrived.
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