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How long may people have lived in Beringia before entering North America?
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Indigenous peoples of the Americas
Performers at a Canadian powwow, c. 2008.
When considering the duration of human habitation in Beringia before migration into North America, it is important to clarify that while the land bridge itself existed intermittently, estimates suggest it may have been inhabited for as long as 20,000 years.1
This estimate is calculated from the time when falling sea levels first began to expose the land route between northeastern Asia and northwestern North America. Several factors support the theory that Beringia served as a long-term habitation zone rather than a simple transit point:1
- Geographic Constraints: The presence of massive, impassable glaciers at the eastern extreme of Beringia likely blocked further movement into the interior of North America until approximately 13,000 BCE.1
- Subsistence Patterns: The hunter-gatherer bands that moved into the region relied on mobile, kin-based groups, and their advance into new territories was generally slow.1
- Environmental Conditions: Despite the surrounding ice age, much of Beringia remained unglaciated and supported cold-hardy tundra vegetation, providing a viable environment for both game and human populations.21
As eastern glaciers eventually receded, these populations moved into the Americas, likely utilizing coastal routes before interior passages became viable.1