US History By schwartz1776 Jul 4, 1776 Declaration of Independence The Declaration of Independence Period: Jul 4, 1776 to Jan 15, 1815 Early Republic Sep 3, 1783 Treaty of Paris The Treaty of Paris is signed ending the American War of Independence. May 25, 1787 Consitutional Convention The Constitutional Convention convenes with a quorum of 7 states Apr 30, 1803 Louisiana Purchase The Louisiana Purchase is signed by American ministers in Paris. Jun 1, 1812 War of 1812 President Madison issues the declaration of war against Great Britain starting the War of 1812.