The Corps of Discovery set out from its winter quarters on April 7, 1805. Less than two months after giving birth, Sacagawea gathered up her infant son and embarked with her husband on a roughly 5,000 mile, 16-month journey.




  November 1804
  February 1805
  April 1805
  May 1805
  August 1805
  September 1805
  January 1806
Sacagawea's Journey with the Corps of Discovery
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Follow the Corps of Discovery on its entire journey from St. Louis to the Pacific on this interactive, animated, and informative website. Read a history of the expedition, find lesson plans for use in the classroom, and play games with the kids.
November 1804
Lewis and Clark first met Sacagawea when she was a girl of about 17, pregnant with her first child. It was November 1804, and the Corps of Discovery, as the expedition was known, had arrived among the Mandan and Hidatsa Indian tribes on the upper Missouri River, in what is now North Dakota. The explorers planned to winter there among these agricultural tribes known to be friendly to whites.

Women among the Hidatsa
Euro American explorers, Lewis and Clark included, tended to take ample note of how hard Indian women worked while overlooking the power they wielded. The Hidatsa, for example, was a matrilineal society in which women owned the earth lodges and gardens — this at a time when maried European women could not own property in their own name — and men moved into their mother-in-law's lodges when they were married.

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