US History Timeline By lydiae 1492 The Discovery of America by Columbus 1607 The Settlement of Jamestown 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 Constitutional Convention 1794 The Invention of the Cotton Gin 1798 The Alien and Sedition Acts 1803 The Louisiana Purchase Jun 18, 1812 The War of 1812 1820 The Missouri Compromise 1828 Andrew Jackson's Election 1831 The Trail of Tears 1837 The Panic of 1837 May 24, 1844 Invention of the Telegraph Apr 25, 1846 The Mexican-American War Jan 29, 1850 The Compromise of 1850 Apr 12, 1861 The Firing on Fort Sumter Jan 1, 1863 The Emancipation Proclamation 1865 The 13th Amendment Apr 9, 1865 Surrender at Appomattox Courthouse Apr 15, 1865 Abraham Lincoln's Assassination 1868 The 14th Amendment Feb 24, 1868 Andrew Johnson's Impeachment 1870 The 15th Amendment 1870 The Organization of Standard Oil 1876 Invention of the Telephone 1879 The Invention of the Electric Light Jun 30, 1892 The Homestead Strike 1894 The Pullman Strike Apr 21, 1898 The Spanish-American War Sep 14, 1901 Theodore Roosevelt Becomes President Dec 17, 1903 Invention of the Airplane