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Sacagawea (born c. 1788, near the Continental Divide at the present-day Idaho-Montana border [U.S.]—died December 20, 1812?, Fort Manuel, on the Missouri River, Dakota Territory) was a Shoshone Indian woman who, as an interpreter, traveled thousands of wilderness miles with the Lewis and Clark Expedition (1804–06), from the Mandan-Hidatsa villages in the Dakotas to the Pacific Northwest. Separating fact from legend in Sacagawea’s life is difficult; historians disagree on the dates of her birth and...