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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.
The population brought to South Asia by coastal migration appears to have remained there for some time, during roughly 60,000 to 50,000 years ago, before spreading further throughout Eurasia. This dispersal of early humans, at the beginning of the Upper Paleolithic , gave rise to the major population groups of the Old World and the Americas .
Layers dating from between 250,000 and 140,000 years ago in the same cave contained tools of the Levallois type which could put the date of the first migration even earlier if the tools can be associated with the modern human jawbone finds. [6] [7] [8] Africa, Southern Africa: South Africa: 200–110: Klasies River Caves, population genetics
A 2013 genetic study suggested the possibility of contact between Ecuador and East Asia, that would have happened no earlier than 6,000 years ago (4000 BC) via either a trans-oceanic or a late-stage coastal migration that did not leave genetic imprints in North America. [57]
Studies show that the pre-modern migration of human populations begins with the movement of Homo erectus out of Africa across Eurasia about 1.75 million years ago. Homo sapiens appeared to have occupied all of Africa about 150,000 years ago; some members of this species moved out of Africa 70,000 years ago (or, according to more recent studies, as early as 125,000 years ago into Asia, [1] [2 ...
In October 1846, General Stephen Watts Kearny and his dragoons with their scout Kit Carson found the route over the mountains from the El Camino Real de Tierra Adentro on the Rio Grande, via the Santa Rita mines to the Gila River which he then followed to the Colorado River, at the Yuma Crossing where he crossed the river and then the Colorado Desert to Southern California.
Stone tools found at the Shangchen site in China and dated to 2.12 million years ago are considered the earliest known evidence of hominins outside Africa, surpassing Dmanisi hominins found in Georgia by 300,000 years, although whether these hominins were an early species in the genus Homo or another hominin species is unknown. [37