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Thomas Jefferson signed the Louisiana Purchase Treaty
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The Public Annoncement of the Louisiana Purchase
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Lewis & Clark meet the Yankton Sioux
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Charbonneau & Sacagawea: A French Canadian fur trapper called Toussaint Charbonneau and his Shoshone wife, Sacagawea,
are hired as interpreters. Only the Lacota tribe were hostile towards the expedition. -
Lewis and Clark send the keelboat and 12 men back with maps, reports, Indian artefacts and other
scientific specimens for President Jefferson. -
August - October 1805 - Lewis and Clark and the expedition travel across the harsh mountains until they reach the Columbia River
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The Clark and Lewis expedition encounter bad storms that halt their progress for nearly 3 weeks.
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William Clark writes his most famous journal entry: "Ocean in view! O! the joy."
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Charbonneau, Sacagawea, and Jean Baptist leave the Lewis and Clark expedition and make their home at the Mandan village
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return St. Louis
