U.S. History Timeline By MollyPunz Oct 12, 1492 The Discovery of America by Columbus May 14, 1607 The Settlement of Jamestown May 28, 1754 The French and Indian War (Start Date) Nov 19, 1763 The French and Indian War (End Date) Dec 16, 1773 The Boston Tea Party Apr 19, 1775 The Battles of Lexington and Concord Jul 4, 1776 The Declaration of Independence Sep 28, 1781 The Battle of Yorktown (Start Date) Nov 19, 1781 The Battle of Yorktown (End Date) May 25, 1787 Constitutional Convention (Start Date) Sep 17, 1787 The Constitutional Convention (End Date) Mar 14, 1793 The Invention of the Cotton Gin This was the day its patent was granted. It was not validated until 1807. Jul 6, 1798 The Alien Enemies Act Jul 14, 1798 The Sedition Act Apr 30, 1803 The Louisiana Purchase Jun 18, 1812 The War of 1812 (Start Date) Feb 18, 1815 The War of 1812 (End Date Mar 3, 1820 The Missouri Compromise Dec 2, 1828 Andrew Jackson's Election May 10, 1837 The Panic of 1837 Jan 6, 1838 Invention of the Telegraph May 16, 1839 The Trail of Tears Apr 25, 1846 The Mexican-American War (Start Date) Feb 2, 1848 The Mexican-American War (End Date) Jan 29, 1850 The Compromise of 1850 Apr 12, 1861 The Firing on Fort Sumter Sep 22, 1862 The Emancipation Proclamation Apr 8, 1864 The Reconstruction Amendments - 13th, 14th, 15th (Start Date) Apr 9, 1865 The Surrender at Appomattox Court House Apr 14, 1865 Abraham Lincoln's Assassination Feb 24, 1868 Impeachment of Andrew Johnson Mar 30, 1870 The Reconstruction Amendments - 13th, 14th, 15th (End Date) Mar 10, 1876 The Invention of the Telephone Oct 14, 1879 The Invention of the Electric Light Jun 30, 1892 The Pullman and Homestead Strikes (Start Date) Jul 6, 1892 The Pullman and Homestead Strikes Apr 25, 1898 The Spanish-American War (Start Date) Aug 12, 1898 Spanish-American War Sep 6, 1901 Theodore Roosevelt Becomes President Dec 17, 1903 The Invention of the Airplane May 15, 1911 The Organization of Standard Oil Trust