Monday/ Indigenous Peoples’ Day

It was Indigenous Peoples’ Day today here in the United States, and I wondered how long ago the first humans had reached the North American continent.

The answer: We don’t know for sure! Some 10,000 to 25,000 yrs ago. Indigenous Americans, who include Alaska Natives, Canadian First Nations, and Native Americans, descend from humans who crossed an ancient land bridge called Beringia, connecting Siberia in Russia to Alaska.

P.S. Anatomically modern Homo sapiens evolved by at least 130,000 years ago from ancestors who had remained in Africa. As far back as 2.5 million years ago, our ancestors – apelike creatures in Africa that began to walk habitually on two legs – were flaking crude stone tools.

Different groups have mixed and migrated throughout Siberia in Russia and into North America over the past 40,000 years. [Map by MARTIN SIKORA, from an article at]

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