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Date |
Event(s) |
| 1 | 1801 | - 4 Mar 1801: Thomas Jefferson inaugurated,Thomas Jefferson was sworn in as the third President of the United States.
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| 2 | 1803 | - 30 Apr 1803: Louisiana Purchase,The United States purchased a vast territory from France for $15 million, nearly doubling the size of the country.
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| 3 | 1804 | - 14 May 1804: Lewis and Clark Expedition begins,Meriwether Lewis and William Clark began their expedition to explore the newly acquired Louisiana Territory.
- 2 Dec 1804: Jefferson reelected,Thomas Jefferson was reelected as President of the United States.
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| 4 | 1807 | - 2 Mar 1807: Act Prohibiting Importation of Slaves,Congress passed a law prohibiting the importation of slaves into the United States, effective January 1, 1808.
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| 5 | 1809 | - 14 Jan 1809: Erie Canal construction begins,Construction began on the Erie Canal, a major infrastructure project that connected the Great Lakes to the Atlantic Ocean.
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| 6 | 1812 | - 18 Jun 1812: War of 1812 begins,The United States declared war on Great Britain over maritime rights and British support for Native American tribes.
- 16 Aug 1812: Surrender of Detroit,American forces surrendered Detroit to the British, a major early defeat in the War of 1812.
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| 7 | 1814 | - 24 Aug 1814: Burning of Washington,British troops captured and burned Washington, D.C., including the White House and the Capitol.
- 13 Sep 1814: Battle of Fort McHenry,American forces at Fort McHenry successfully defended Baltimore from a British naval attack, inspiring Francis Scott Key to write "The Star-Spangled Banner."
- 24 Dec 1814: Treaty of Ghent,The Treaty of Ghent was signed, officially ending the War of 1812.
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| 8 | 1815 | - 8 Jan 1815: Battle of New Orleans,General Andrew Jackson defeated the British in the final major battle of the War of 1812, fought after the peace treaty had been signed.
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| 9 | 1817 | - 4 Mar 1817: James Monroe inaugurated,James Monroe was sworn in as the fifth President of the United States.
- 10 Dec 1817: Mississippi becomes 20th state,Mississippi was admitted to the Union.
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| 10 | 1819 | - 2 Mar 1819: Missouri Compromise,Congress passed a compromise allowing Missouri to enter the Union as a slave state and Maine as a free state, maintaining the balance of power.
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| 11 | 1823 | - 2 Dec 1823: Monroe Doctrine,President James Monroe announced a U.S. foreign policy opposing European colonialism in the Americas.
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1799 - 1824 (24 years)