Summer school US history By Mark713 Period: Jan 1, 1860 to Jan 1, 1896 gilded age Period: Jan 1, 1873 to Jan 1, 1920 imperialism Period: Jan 1, 1897 to Jan 1, 1920 progressive era Period: Jul 28, 1914 to Nov 11, 1918 WW1 Period: Jan 1, 1920 to Jan 1, 1929 ROARING 20S Period: Aug 1, 1929 to Mar 1, 1933 GREAT DEPRESSION Period: Sep 1, 1939 to Sep 2, 1945 WORLD WAR || Period: Jan 1, 1947 to Jan 1, 1991 COLD WAR Period: Jan 1, 1954 to Jan 1, 1968 CIVIL RIGHTS Period: Jan 1, 1970 to Dec 31, 1979 1970s Period: Jan 1, 1980 to Dec 1, 1989 1980s Period: Jan 1, 1991 to Jan 1, 1991 post cold war