U.S History Timeline By GBMayer Period: 1492 to 1903 U.S. History Timeline Aug 3, 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 1781 The Battle of Yorktown 1787 The Constitutional Convention 1793 The invention of the cotton gin 1798 The Alien and Sedition Acts Apr 30, 1803 The Louisiana Purchase Jun 18, 1812 The War of 1812 1820 The Missouri Compromise 1828 The election of Andrew Jackson 1831 The Trail of Tears 1837 The Panic of 1837 1837-1843 1844 The Invention of the Telegraph 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 1863 The Organization of Standard Oil Trust 1865 13th, 14th, and 15th Amendments 1865, 1868, and 1870 Apr 9, 1865 Surrender at Appomattox Courthouse Apr 15, 1865 Abraham Lincoln’s Assassination Feb 24, 1868 Andrew Johnson’s Impeachment 1876 The invention of the telephone 1879 The invention of the electric light 1892 The Pullman and Homestead Strikes 1892-1894 Apr 21, 1898 The Spanish-American War Sep 14, 1901 Theodore Roosevelt becomes president 1903 The invention of the airplane