Final answer:
The first people in the Americas were from a pre-Clovis population who likely arrived via the Bering Land Bridge or coastal migration around 20,000-14,000 BP, migrating from Asia.
Explanation:
In 1491, the Americas were first settled by a pre-Clovis population. The two well-accepted theories of how the first people arrived are the Bering Land Bridge and coastal migration. Most archaeologists date the earliest arrival to 20,000-14,000 BP, supporting human migration from Asia. The Solutrean hypothesis, proposing descent from Europe, is considered unlikely based on genetic studies of indigenous peoples.
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