Important events in the USA By Qali Period: Jan 1, 1773 to Jan 1, 1785 The War of Independent Jul 4, 1776 Declarence of Independent Jan 8, 1789 The Constitution Jan 8, 1840 The Mexican War Jan 8, 1860 The Confederation Period: Jan 8, 1861 to Jan 8, 1865 The Civil War Jan 8, 1862 The Homestead Act Period: Jan 8, 1914 to Jan 8, 1918 WWI Oct 29, 1929 The Depression Period: Jan 8, 1940 to Jan 8, 1945 WWII Dec 7, 1941 Pearl Harbor Period: Jan 8, 1950 to Jan 8, 1991 The Cold War Period: Jan 8, 1957 to Jan 8, 1969 The Space Race Continued in the 70'ies and 80'ies due to the Russians building spacestations Sep 11, 2001 9/11