US History a timeline By Cason Baltich Period: 1400 to 1920 Us history Oct 12, 1492 America is discovered Christopher discovers America 1607 The Settlement of Jamestown 1754 French and indian war 1773 The Boston tea party 1775 The Battle of Lexington and Concord 1776 The Declaration of Independence 1781 The Battle of Yorktown 1787 The Constitutional Convention 1794 The invention of the cotton gin 1798 The Alien and Sedition Acts 1803 The Louisiana Purchase 1812 The War of 1812 1820 The Missouri Compromise 1828 Andrew Jackson’s Election 1831 The Trail of Tears 1837 The Panic of 1837 1844 The invention of the telegraph 1846 The Mexican-American War 1850 The Compromise of 1850 1861 The Firing on Fort Sumter 1863 The Emancipation Proclamation 1865 Surrender at Appomattox Courthouse 1865 Abraham Lincoln’s Assassination 1868 Andrew Johnson’s Impeachment 1870 13th, 14th, 15th Amendments 1870 The Organization of Standard Oil Trust 1870 The Organization of Standard Oil Trust 1876 telephone was invented 1879 invention of light bulb 1892 The Pullman and Homestead Strikes 1898 The Spanish-American War 1903 plane was invented 1912 Theodore Roosevelt becomes president