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U.S Capital moving
The U.S. capital is moved from Philadelphia to Washington, DC. -
Thomas Jefferson is inaugurated as the third president in Washington, DC.
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Louisiana Purchase
United States agrees to pay France $15 million for the Louisiana Territory, which extends west from the Mississippi River to the Rocky Mountains and comprises about 830,000 sq mi. As a result, the U.S. nearly doubles in size. -
Lewis and Clark
Lewis and Clark set out from St. Louis, Mo., on expedition to explore the West and find a route to the Pacific Ocean. -
James Madison is inaugurated as the fourth president.
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War of 1812
U.S. declares war on Britain over British interference with American maritime shipping and westward expansion. -
Treaty of Ghent is signed
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Missouri Compromise
In an effort to maintain the balance between free and slave states, Maine (formerly part of Massachusetts) is admitted as a free state so that Missouri can be admitted as a slave state; except for Missouri, slavery is prohibited in the Louisiana Purchase lands north of latitude 36°30' -
Monroe Doctrine
In his annual address to Congress, President Monroe declares that the American continents are henceforth off-limits for further colonization by European powers. -
Indian removal act
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Texas declares Independence
Texas defeats Mexico to gain independence. But they lose the battle at the Alamo -
Underground railroad
Harriet Tubman escapes from slavery and becomes one of the most effective and celebrated members of the Underground Railroad. -
Period: to
Civil war