"America started as a bunch of vaguely Asiatic foragers crossed over more or less in Alaska a couple thousand years ago." It was more like 18,000 - 12,000 year

"America started as a bunch of vaguely Asiatic foragers crossed over more or less in Alaska a couple thousand years ago." It was more like 18,000 - 12,000 years ago, and perhaps earlier, well before civilizations, or even their agricultural precursors appeared anywhere on the planet. You're talking about walking across the Bering Straits a solid 10,000 years after the last ice age ended. But thanks for the explainer.