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Lewis and Clark leave St. Louis by request of President Thomas Jefferson.
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Sacagawea arrived to aid the expeditions with her knowledge and language skills.
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The Lewis and Clark Expedition arrived, and wintered at Fort Mandan.
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Lewis and Clark leave Fort Mandan, and continue their journey up the Missouri river.
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The expedition has reached a range at which they can see the mountains
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The expedition comes accross a fork in the river, and doesn't know whether or not to take the North or South fork.
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The expedition meets the Shoshone Indians for the first time and secures horses to travel over the mountains.
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The Corps of Discovery begins their winter in Fort Clatsop
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The Corps of Discovery heads back up the Columbia to go back to St. Louis after wintering at Fort Clatsop.
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The Expedition makes it home after learning they had been given up for dead a long time ago,
