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The specifics of Paleo-Indian migration to and throughout the Americas, including the exact dates and routes traveled, are subject to ongoing research and discussion.[5] The traditional theory has been that these early migrants moved into the Beringia land bridge between eastern Siberia and present-day Alaska around 40,000–17,000 years ago,[6] when sea levels were significantly lowered due to the Quaternary glaciation.[5][7] These people are believed to have followed herds of now-extinct pleistocene megafauna along ice-free corridors that stretched between the Laurentide and Cordilleran ice sheets.[8] Another route proposed is that, either on foot or using primitive boats, they migrated down the Pacific Northwest coast to South America.[9] Evidence of the latter would since have been covered by a sea level rise of hundreds of meters following the last ice age.[10]
Archaeologists contend that Paleo-Indians migration out of Beringia (eastern Alaska), ranges from 40,000 to around 16,500 years ago.[11][12][13] This time range is a hot source of debate and will be for years to come. The few agreements achieved to date are the origin from Central Asia, with widespread habitation of the Americas during the end of the last glacial period, or more specifically what is known as the late glacial maximum, around 16,000–13,000 years before present.[13][14]
The Inuit migrated into the Arctic section of North America in another wave of migration, arriving around 1000 CE.[15] Around the same time as the Inuit migrated into North America, Viking settlers began arriving in Greenland in 982 and Vinland shortly thereafter, establishing a settlement at L'Anse aux Meadows, near the northernmost tip of Newfoundland.[16] The Viking settlers quickly abandoned Vinland, and disappeared from Greenland by 1500.[17]
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Archaeologists contend that Paleo-Indians migration out of Beringia (eastern Alaska), ranges from 40,000 to around 16,500 years ago.[11][12][13] This time range is a hot source of debate and will be for years to come. The few agreements achieved to date are the origin from Central Asia, with widespread habitation of the Americas during the end of the last glacial period, or more specifically what is known as the late glacial maximum, around 16,000–13,000 years before present.[13][14]
The Inuit migrated into the Arctic section of North America in another wave of migration, arriving around 1000 CE.[15] Around the same time as the Inuit migrated into North America, Viking settlers began arriving in Greenland in 982 and Vinland shortly thereafter, establishing a settlement at L'Anse aux Meadows, near the northernmost tip of Newfoundland.[16] The Viking settlers quickly abandoned Vinland, and disappeared from Greenland by 1500.[17]
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