U.S History A Timeline By alg053000 Oct 12, 1492 Columbus Discovers America Period: Oct 12, 1492 to Dec 17, 1903 U.S History A Timeline May 14, 1607 Jamestown Established Aug 23, 1754 The French and Indian War Dec 16, 1773 The Boston Tea Party Apr 19, 1775 The Battle of Lexington and Concord Jul 4, 1776 The Declaration of Independence Sep 28, 1781 The Battle of Yorktown May 25, 1787 The Constitution Convention Mar 19, 1794 The Invention of the Cotton Gin Jul 6, 1798 The Alien and Sedition Acts Apr 30, 1803 The Louisianan Purchase Jun 18, 1812 The war of 1812 Mar 3, 1820 The Missouri Compromise Nov 4, 1824 The Election of Andrew Jackson Aug 23, 1830 The Trail of Tears don't know exact date. Aug 23, 1837 The Panic of !837 Don't know exact date. May 24, 1844 Invention of the Telegraph Apr 25, 1846 Mexican American War Jan 29, 1850 The Compromise of 1850 Oct 27, 1858 Theodore Roosevelt becomes president Apr 12, 1861 Firing on Fort Sumter Sep 22, 1862 The Emancipation Proclamation Apr 9, 1865 Surrender at Appomattox Courthouse Dec 6, 1865 13th, 14th, 15th Amendments Feb 24, 1868 Andrew Johnson’s Impeachment Aug 23, 1870 The Organization of Standard Oil Trust Don't know exact date Mar 10, 1876 Invention of the Telephone. Aug 23, 1879 The invention of the electric light Don't know exact date Aug 23, 1896 The Pullman and Homestead Strikes Apr 23, 1898 The Spanish-American War Dec 17, 1903 Invention of the Airplane