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Map of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya). [1]The peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the ...
Examples of Clovis and other Paleoindian point forms, markers of archaeological cultures in North America. The Solutrean hypothesis on the peopling of the Americas is the claim that the earliest human migration to the Americas began from Europe during the Solutrean Period, with Europeans traveling along pack ice in the Atlantic Ocean.
Schematic illustration of maternal (mtDNA) gene-flow in and out of Beringia, from 25,000 years ago to present. The genetic history of the Indigenous peoples of the Americas is divided into two distinct periods: the initial peopling of the Americas from about 20,000 to 14,000 years ago (20–14 kya), [1] and European contact, after about 500 years ago.
Mammoth bones and “ghost” footprints of ancient people are the latest evidence in a scientific debate about when the first humans reached the Americas.
Fossil footprints show humans in North America more than 21,000 years ago, the earliest firm evidence for humans in the Americas and show people must have arrived here before the last Ice Age.
This would mean that humans were occupying North America during the Last Glacial Maximum (LGM) – a theory that had previously been dismissed. [25] Though it is not currently the widely-accepted theory, these archaeological sites support alternative theories of early human migration such as a coastal migration route or the Solutrean hypothesis.
This study helps illuminate the grand story of human evolution, but there’s still much that remains unknown about how the Americas were populated. It’s not clear whether early humans arrived ...
There is a possibility that this first wave of expansion may have reached China (or even North America [dubious – discuss] [46]) as early as 125,000 years ago, but would have died out without leaving a trace in the genome of contemporary humans. [22]