The exact number of people who crossed the land bridge connecting Alaska and Siberia, known as Beringia, is not known, but estimates suggest that several waves of migration occurred over thousands of years. Archaeological evidence indicates that the first groups may have crossed around 15,000 to 20,000 years ago during the last Ice Age. These early migrants are believed to be the ancestors of Native Americans. The population size at any given time likely varied significantly due to environmental changes and other factors.
The Bering Sea Bridge.
They came from Alaska or Siberia
It is believed that there was at one time, a 'land bridge' connecting what is now Alaska and Siberia … it's only 'bout 60 miles. The first people are thought to have crossed that short span to the 'New World.'
Alaska is the US state closest to where the first people crossed a land bridge into North America. The Bering Land Bridge connected Alaska and Siberia during the last Ice Age, allowing early humans to migrate into North America.
Beringia separates Siberia and Alaska
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.
Siberia and Alaska.
They came about 1000 years ago by crossing the land bridge connecting siberia to alaska. When the glaciers (it was the ice age) melted the landbridge submerged and they were isolated in america.
greenland and canada alaska and siberia greenland and siberia alaska and canada
The Bering Sea.
a land bridge was created between Siberia and Alaska
Early humans crossed the Bering Land Bridge from Siberia to Alaska to reach the Americas. This land bridge emerged during the last Ice Age when sea levels were lower.