The Bering land bridge disappeared 11,000 years ago. The earliest human major settlements were formed about 6000 years ago, in Mesopotamia. Your whole timescal

The Bering land bridge disappeared 11,000 years ago. The earliest human major settlements were formed about 6000 years ago, in Mesopotamia. Your whole timescale is wrong. We’re not talking about humans. We’re talking about settled civilizations. Things didn’t fluctuate very much since 9000 BCE, when the Bering land bridge went away. All of recorded history is since then. As for recent history it’s only really since 2000 we’ve burst out of that range. There was fluctuation before but within the post 9000 BCE norms. https://xkcd.com/1732/ https://xkcd.com/1732/