US history Timeline By OBP Oct 12, 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 Aug 2, 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 May 18, 1798 The Alien and Sedition Acts 1803 The Louisiana Purchase Jun 18, 1812 The War of 1812 Mar 3, 1820 The Missouri Compromise 1828 Andrew Jackson’s Election 1831 The Trail of Tears 1837 The Panic of 1837 May 24, 1844 The 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 1863 The Organization of Standard Oil Trust Period: 1865 to 1870 13th, 14th, 15th Amendments Apr 9, 1865 Surrender at Appomattox Courthouse Apr 15, 1865 Abraham Lincoln’s Assassination Feb 24, 1868 Andrew Johnson’s Impeachment Period: 1879 to 1903 The invention of the electric light, telephone, and airplane Jul 1, 1892 The Pullman and Homestead Strikes Period: Apr 21, 1898 to Dec 10, 1898 The Spanish-American War Sep 14, 1901 Theodore Roosevelt becomes president