1800-1876 By evanchen0610 Period: 1797 to 1801 Presidency of John Adams 1800 Capital Washington The capital moved from Philadelphia to Washington Period: 1801 to 1809 Presidency of Thomas Jefferson 1803 The bought of Louisiana Period: 1809 to 1817 Presidency of James Madison Period: 1812 to 1815 The Second War of independence 1814 Treaty of Ghen Period: 1817 to 1825 Presidency of James Monroe 1819 Adams–Onís Treaty The purchase of Florida 1820 The Missouri Compromise 1823 Monroe Doctrine Period: 1825 to 1829 Presidency of John Quincy Adams Period: 1829 to 1837 Presidency of Andrew Jackson Period: 1837 to 1841 Presidency of Martin van Buren 1838 The invention of telegram 1841 Presidency of William Henry Harrison Period: 1841 to 1845 Presidency of John Tyler 1842 Webster–Ashburton Treaty Period: 1845 to 1849 Presidency of James Knox Polk Period: 1846 to 1848 Mexican-American War 1848 Finding of gold mine in California Period: 1849 to 1850 Presidency of Zachary Taylor 1850 Compromise of 1850 Period: 1850 to 1853 Presidency of Millard Fillmore 1853 Invention of potato chips Period: 1853 to 1857 Presidency of Franklin Pierce Period: 1857 to 1861 Presidency of James Buchanan Period: 1861 to 1865 Pesidency of Abraham Lincoln Period: 1861 to 1865 the Confederate States of America Apr 15, 1861 the outbreak of American Civil War Sep 22, 1862 The Emancipation Proclamation Apr 9, 1865 surrender of the Confederate States of America Apr 14, 1865 President lincoln was assassinated 1867 Bought of Alaska