U.S. History By Koala Sandwich Period: 1400 to 1920 U.S. History Colombus-Roosevelt 1492 America is Discovered by Colombus May 14, 1607 Jamestown is established 1754 French and Indian War Starts 1763 French and Indian War Ends 1773 Boston Tea Party 1775 Battles of Lexington and Concord Jul 4, 1776 Declaration of Independence 1781 Battle of Yorktown 1787 Constitutional Convention 1794 Invention of the Cottton Gin 1798 Alien and Sedation Acts 1803 Lousiana Purchase 1812 Start of the War of 1812 1815 End of the War of 1812 1820 Missouri Compromise 1828 Andrew Jackson's Election 1830 Trail of Tears 1837 The Panic of 1837 May 24, 1844 Invention of the Telegraph 1846 Start of Mexican American War 1848 End of Mexican American War 1850 The Compromise of 1850 1861 Firing on Fort Sumter Jan 1, 1863 The Emancipation Proclamation 1863 Organization of Standdard Oil Trust 1865 Surrender at Appamotox Court House 1865 Abraham Lincoln Assassination 1865 13th Amendment 1868 14th Amendment 1868 Andrew Johnson's Impeachment 1870 15th Amendment Mar 10, 1876 Invention of Telephone 1879 Invention of Electric Light 1892 The Pullman and Homestead Strikes 1898 Spanish American War Dec 17, 1903 Invention of Airplane 1904 Election of Theodore Roosevelt Oct 1, 1908 The Invention of the Model T Ford 1917 The Zimmerman Telegram Nov 11, 1918 Armistice of World War 1 Aug 18, 1920 The 19th Amendment Mar 21, 1927 Charles Lindbergh's Flight Oct 24, 1929 Black Thursday 1933 The New Deal Jan 30, 1933 Hitler becomes chancellor of Germany Sep 30, 1938 The Munich Pact 1939 Hitler invades Poland Jun 6, 1944 D-day Invasion1 Aug 6, 1945 Hiroshima bombed Aug 9, 1945 Nagasaki bombed Oct 24, 1945 United Nations Created Feb 22, 1946 The Long Telegram 1949 Russians accquire atom bomb Apr 4, 1949 NATO formed Jun 25, 1950 The Korean War begins Jul 27, 1953 Korean War ends 1954 Brown vs. Board of Education 1955 Rosa Parks refuses to give up her seat Nov 5, 1955 The Vietnam War begins 1962 Cuban Missile Crisis Nov 22, 1963 JFK Assassination Aug 7, 1964 Gulf of Tonkin Resouloution Jul 20, 1969 Apollo Landing Jun 17, 1972 Watergate Breakins Aug 9, 1974 Nixon's Resignation Apr 30, 1975 End of Vietnam War 1990 Invention of Internet 1991 Fall of Berlin Wall Sep 11, 2001 9-11 Attacks