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Thomas Jefferson is inaugurated as the third president of the United States, becoming the first president inaugurated in Washington, D.C. He also tied with Aaron Burr.
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Congress officially incorporates Washington as a city, empowering Jefferson to appoint the mayor.
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The French flag is lowered in New Orleans and the U.S. flag raised, symbolizing the transfer of the Louisiana territory from France to the United States.
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Congress passes the Louisiana Territory Act, dividing the Louisiana Purchase into the Territory of Orleans in the south and the district of Louisiana in the north.
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The United States and Tripoli sign a Treaty of Peace and Amity in Tripoli, effectively ending the Tripolitan War.
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In protest against the seizure of American ships and the impressment of American sailors by Britain, Congress passes a law prohibiting the importation of many British products into the United States.
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Aaron Burr is arrested near Fort Stoddart, Alabama, in connection with his alleged conspiracy against the government.
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Napoleon issues the Bayonne Decree, authorizing the French seizure of all U.S. vessels entering French and Italian ports and all ports of the Hanseatic League. Napoleon conveniently argues that his action helps the United States enforce its new policy prohibiting trade with other nations.