Pre-Dorset
The Pre-Dorset culture was a Paleo-Eskimo culture that lived in the Eastern Canadian and Greenland Arctic from 2500 to 500 BC, and preceded the Dorset culture.
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Wikipedia
The Pre-Dorset culture was a Paleo-Eskimo culture that lived in the Eastern Canadian and Greenland Arctic from 2500 to 500 BC, and preceded the Dorset culture.