US History A Timeline By Time Lord Samuel 100% Oct 12, 1492 The Discovery of America by Columbus May 13, 1606 The Settlement of Jamestown May 28, 1748 The French and Indian War Dec 16, 1773 The Boston Tea Party Apr 19, 1774 The Battle of Lexington and Concord Jul 4, 1776 The Declaration of Independence Sep 28, 1781 The Battle of Yorktown May 25, 1787 The Constitutional Convention Mar 1, 1794 The Invention of the Cotton gin Jun 18, 1798 The Alien and Sedition Acts Apr 30, 1802 The Louisiana Purchase Jun 18, 1812 The War of 1812 Mar 6, 1820 The Missouri Compromise Dec 2, 1828 Andrew Jackson's Election May 1, 1830 The trail of Tears Apr 1, 1837 The Panic of 1837 May 24, 1837 The Invention of the Telegraph Apr 25, 1846 The Mexican - American War Sep 18, 1850 The Compromise of 1850 Apr 12, 1861 The Firing on Fort Sumter Jan 1, 1863 The Emancipation Proclamation Jan 31, 1865 13th, 14th, 15th Amendments Apr 9, 1865 Surrender at Appomattox Courthouse Apr 14, 1865 Abraham Lincoln's Assassination Feb 24, 1868 Andrew Johnson's Impeachment Jan 1, 1879 TInvention of the Electric Light, Telephone and Airplane Jan 1, 1882 The Organization of Standard Oil Trust May 11, 1894 The Pullman and Homestead Strikes Apr 21, 1897 The Spanish- American War Sep 14, 1901 Theodore Roosevelt becomes President