USH By mcelfish1 Jul 4, 1776 Independence Sep 3, 1783 Treaty of Paris Mar 4, 1789 United States Constitution in effect Jun 18, 1812 1812 Feb 18, 1815 1812 end Dec 20, 1860 SC secedes May 9, 1865 Civil war ends Apr 25, 1898 Spanish American War Jul 28, 1914 The War to end all Wars Jun 28, 1919 WWI ends Dec 7, 1941 Pearl Harbour Aug 15, 1945 Japan Surrenders Jun 27, 1950 Korean war Nov 1, 1955 Vietnam War begins for US Apr 30, 1975 Saigon Falls Jan 17, 1991 Desert Storm Sep 11, 2001 9/11