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The U.S. Capital transitions to Washington, DC.
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Thomas Jefferson becomes the third official President of the United States.
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The United States pays France fifteen million dollars for the Louisiana territory.
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Lewis and Clarke set off on their adventure/expedition.
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James Madison becomes the fourth official President of the United States.
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John Quincy Adams is inaugurated as the sixth President of the United States.
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Andrew Jackson (now the seventh President) signs and warrants the Indian Removal Act, of which forces the movement of Native Americans.
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An election is held between Democrat Samuel Tilden and Republican Rutherford B. Hayes of Ohio, Tilden coming out in the lead.