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The Beging of There Expedition
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Expedition marks first 4th of July west of the Mississippi by firing the keelboat's cannon, and naming Independence Creek.
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Corps of Discovery meet with representatives of the Oto and Missouri Indians, give peace medals, 15 star flags and other gifts.
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Friendly council with Yankton Sioux held.
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All of the men attempt to drown a never-before-seen prarie dog out of its hole for shipment back to Jefferson
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Confrontation with Teton Sioux, who demand one of the expedition's boats as a toll to travel farther upriver. Chief Black Buffalo resolves situation before any fighting. Expedition stays with tribe for 3 more days.
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Expedition discovers earthlodge villages of the Mandan and Hidatsas Indians. The captains decide to build Fort Mandan across the river from the main village.
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Fort Mandan completed, expedition moves in for the winter.
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Sacagawea gives birth to baby boy, Jean Baptiste.
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Lewis and Clark send the keelboat and approx. a dozen men back downriver, with maps, reports, Indian artifacts and other scientific specimens for Jefferson. The remaining party heads west.
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Lewis and another hunter kill a large grizzly bear, which had never before been described for science.
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Clark names the Judith River in honor of a girl back in Virginia he hopes to marry.
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Lewis discovers a village of Shoshones and tries to negotiate for horses. Clark and the rest of the expedition arrives as well, and it is discovered that the Shoshone chief Cameahwait is Sacagawea's brother. Lewis and Clark name the site Camp Fortunate.