Question

How did the spread of civilization begin in the americas

Answer 1

Through Bering Strait.

Step-by-step explanation:

Earlier American civilisation were possible because they came to the continent passing the Bering Strait. Historians don't know exactly how they passed, but they assure that.

That's why earlier native settle in North America, and after a certain time, they were establishing new settlements around all continent, central and south america. This is one explanation about why native people are alike in all continent, some tradition have points in common, like animalistic religions and believes.

Answer 2

Civilization in the Americas began when Natives crossed the Bering land bridge many thousands and thousands years ago.  From there they hunted in groups for food, farming, and revolving around tribes.