Answer :
Answer:
Bering land bridge
Explanation:
There is a land bridge theory that states that Native Americans orginally crossed over to North America via a land bridge that connected what is now modern day Russia to what is modern day Alaska.
Answer:
The ancestors of living Native Americans arrived in what is now the United States at least 15,000 years ago, possibly much earlier, from Asia via Beringia. A vast variety of peoples, societies and cultures subsequently developed.
Explanation: