US History A Timeline By hedgehogsareadorable Oct 12, 1492 Columbus Discovered America May 14, 1607 Jamestown Settlement Established Period: 1754 to 1763 French and Indian War Dec 16, 1773 Boston Tea Party Apr 19, 1775 Battle of Lexington and Concord Jul 4, 1776 Declaration of Independence Sep 28, 1781 Battle of Yorktown Period: 1787 to 1787 Constitutional Convention 1794 Invention of Cotton Gin 1798 Alien and Sedition Acts 1802 Invention of Electric Light Period: 1803 to Apr 30, 1803 Louisiana Purchase Period: Jun 18, 1812 to Feb 17, 1815 War of 1812 Mar 3, 1820 Missouri Compromise Period: Oct 31, 1828 to Dec 2, 1828 Andrew Jackson's Election Period: 1831 to 1850 Trail of Tears 1837 Invention of the Telegraph Period: 1837 to 1845 The Panic of 1837 Says 1845, but it ended in mid-forties. Period: Apr 25, 1846 to Feb 2, 1848 Mexican/American War Sep 9, 1850 Compromise of 1850 Period: Apr 12, 1861 to Apr 13, 1861 Firing on Fort Sumter Jan 1, 1863 Emancipation Proclamation Jan 31, 1865 13th Amendment Approved Apr 9, 1865 Surrender at Appomattox Courthouse Apr 15, 1865 Assassination of Lincoln Period: Feb 24, 1868 to 1868 Impeachment of Andrew Johnson Jul 9, 1868 14th Amendment Approved Feb 3, 1870 15th Amendment Approved 1875 Invention of Telephone Jan 2, 1882 Organization for Standard Oil Trust Period: Jul 1, 1892 to Nov 20, 1892 Homestead Strike Period: May 11, 1894 to Jul 20, 1984 Pullman Strike Period: Apr 21, 1898 to Dec 10, 1898 Spanish-American War Sep 14, 1901 Theodore Roosevelt Becomes President Dec 17, 1903 Invention of Airplane