Beringia Origin

The original hypothesis of how Americans first came to be inhabited is traced backed to the ancient Siberians who crossed from Asia to Alaska by foot, over the land bridge across the Bering Sea. This land bridge was called Beringia, and existed during the final period of the last Ice Age, 15,000 years ago. This trip was possible due to the sea levels during the ice age being hundreds of feet lower than you would find today. During this great migration the Siberian immigrants trenched southward into what would now be considered the lower 48 states. (Cite here) Discovering land plentiful of enormous Pleistocene creatures such as, the wooly mammoth, ground sloths, giant bison, and other megafauna. (Or cite here) Coming into a land of such massive
game the migrants needed a more advanced technology in order to stand a chance at survival, the “Clovis First” theory. Distinctively unique and significantly larger spearheads diversified the Ice Age hunters from who they were before. Allowing the new Americans to fish, gather, hunt and adapt into great civilizations.