USA HISTORY

Detailed explanation-1: -The Pacific Coast Migration Model is a theory concerning the original colonization of the Americas that proposes that people entering the continents followed the Pacific coastline, hunter-gatherer-fishers traveling in boats or along the shoreline and subsisting primarily on marine resources.

Detailed explanation-2: -Two theories currently explain the arrival of humans in the Americas: the Bering Strait land bridge theory and the coastal migration theory.

Detailed explanation-3: -The settlement of the Americas began when Paleolithic hunter-gatherers entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum (26, 000 to 19, 000 years ago).

Detailed explanation-4: -But more recently, the coastal route theory, which posits that the first Americans migrated down along the Pacific Rim shorelines from the Bering Strait to South America, has gained traction.

Detailed explanation-5: -Archeological evidence suggests that roughly 16, 000 years ago the first people to arrive in North America crossed over an ice-free corridor from Asia in what is now Bering Land Bridge National Preserve.