- 8th millennium BC in North American history
The 8th millennium BC in North American history provides a time line of events occurring within the present political boundaries of
United States (including territories) from 8000 BC through 7001 BC in theGregorian calendar . Although this time line segment may include some European or other world events that profoundly influenced later American life, it focuses on developments within Native American (and Polynesian) communities. Because the indigenous peoples of these regions lacked a written language, we must glean events from the admittedly very incompletearchaeological record and place them in time throughradiocarbon dating techniques.Because of the inaccuracies inherent in radiocarbon dating and in interpreting other elements of the archaeological record, most dates in this time line represent approximations that may vary a century or more from source to source. The assumptions implicit in archaeological dating methods also may yield a general bias in the dating in this time line.
* 8000 BC: The lastglacial ends, causingsea level s to rise and flood theBeringia land bridge, closing the primary migration route from Siberia.* 8000 BC: Sufficient rain falls on the American Southwest to support many large mammal species--
mammoth ,mastodon , and abison species-—that soon go extinct.* 8000 BC: Native Americans leave documented traces of their presence in every habitable corner of the New World, including the American Northeast, the Pacific Northwest, and a cave on
Prince of Wales Island in the Alexander archipelago of southeast Alaska, possibly following these game animals.* 8000 BC: Hunters in southwest Europe and the American Southwest both use the
atlatl .* 7500 BC: Early
basket ry originates in America.* after 7500 BC:
Kennewick Man dies along the shore of theColumbia River in Washington State, leaving one of the most complete early Native American skeletons.* 7001 BC: Northeastern peoples depend increasingly on
deer , nuts, and wildgrain s as the climate warms.* 7001 BC: Native Americans in
Lahontan Basin , Nevadamummify their dead to give them honor and respect, evidencing deep concern about their treatment and condition.
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