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The Louisiana Purchase was signed giving the United States much more land.
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Lewis and Clark and others began their journey to find out more about the Louisiana Purchase territory.
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Sergeant Floyd dies in Sioux City. He was part of the expedition team.
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The group had a friendly meeting with the Sioux Indians in South Dakota.
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Sacagawea was an Indian who traveled with the group. She had a baby boy.
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Grizzly bears were not known.
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Lewis discovered waterfalls on the Missouri River.
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They camped in Missoula, Montana to prepare for the mountain crossing.
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They survived crossing the mountains and made it to the Columbia River.
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The expedition was successful.
