The Bering Land Bridge or the Bering Sea Land Bridge.
The real name is "Land-Bridge" And it is the Bering Strait.
The current prevailing theory is that they crossed the ice bridge that connected Russia and Alaska roughly eighty thousand years ago.
The closest point between Russia and Alaska during the winter where the ice freezes over creating an ice bridge.
Native Americans migrated from Asia over the land bridge that once connected Russia and Alaska during the Ice Age.
The original settlers of America is currently known as the native Americans. Like the incas and Aztecs. they were said to cross over from Asia to Alaska via an ice bridge that used to lay between russia and Alaska.
Russia then they walked on the ice between Russia & Alaska.
The "Land Bridge" was a theoretical "ice bridge" between East Russia and Alaka which enabled the Native Americans to travel to America. It was caused because of the most recent Ice Age because the Arctic Ice advanced to the Bering Strait (the body of water that currently seperates Alaska and Russia). There is no Land Bridge now because when the Ice Age ended the ice melted , which left only water.
The land bridge was called Beringia. It connected present-day Siberia in Russia with Alaska in the United States, allowing for human migration between Asia and North America.
The Bering Land Bridge. Technically, it was not a land bridge it was actually an ice bridge that extended from extreme northeastern Siberia & extreme western Alaska.
Native Americans migrated from Asia over the land bridge that once connected Russia and Alaska during the Ice Age.
The first people who lived in the USA were Native Americans who walked over an ice bridge from Russia to Alaska and who went down south to Argentina, and all over the American continents, (North and South). This has been proven by linking the DNA of the various tribes in Alaska to those in Russia.
They believe a land bridge existed between what is now Russia and Alaska. Sea levels would have been lower at the time due to the amount of ice on land.