The biggest human migrations across the Bering land bridge

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CONTENTS of 1,000,000 BC- 8,001 BC: The peopling of the prehistoric Americas and the extinctions of the American megafauna

This page last updated on or about 10-17-05
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Approximately 31,000 BC- 8,000 BC: The Bering land bridge may be dry

Here may be where the biggest human migrations across the bridge take place. There may have been a 7,000 year interruption in migrations crossing the bridge-- since it was submerged.

The relatively small numbers of people who made it across 7,000 years before have multiplied and settled in along the northwestern coast of North America by now. And they are not too happy with the new influx of visitors now, despite the fact that genetically the strangers are near identical to themselves. There's plenty of conflict to go around now.

The 7,000 year separation may have been sufficient time for new disease strains to spawn on the asian side, which afflict the north american natives now.

Another sore point between 31,000 BC and 12,000 BC is the fact that the Ice Age glaciers remain present in force on the continent, funneling most all newcomers down the more hospitable coastline-- and directly into and through the home territories of the 7000 year natives. Over and over again.

It appears the earliest migrations into North America via the Bering land bridge (before 13,000 BC) take place along the western coast rather than inland. At this time glaciers cover much of North America, with inland routes perhaps almost as difficult to traverse as crossings of the North Pole. The coasts by contrast offer some respites from the ice for travelers.
Around 13,000 BC to 12,000 BC the continental glaciers have sufficiently retreated to offer more hospitable inland routes south through the continent than before. This allows perhaps larger mass migrations to proceed inland compared to the traveling possible along the coast, for both people and animals.
There appears to be frequent and intense conflict occurring among these early migratory peoples.

-- Mystery of the First Americans, NOVA, PBS, 2-15-2000

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