Social Studies Timeline By meliss56 Period: Jul 28, 1914 to Nov 11, 1918 WWI Jan 15, 1921 NCSS is founded Period: Jan 15, 1929 to Jan 15, 1932 Great Depression Period: Jan 15, 1939 to Jan 15, 1945 WWII World War 2 DocumentaryAmerica entered WWII when the Japanese bombed Pearl Harbor. Dec 7, 1941 Pearl Harbor Pearl Harbor Website Period: Jan 15, 1950 to Jan 15, 1953 Korean War picture Period: Jan 15, 1955 to Jan 15, 1968 Civil Rights Jan 15, 1957 First Satellite Launched (Sputnik, Russia) Period: Jan 15, 1960 to Jan 15, 1973 Vietnam Jan 15, 1961 First Man in Space (Yuri Gagarin, Russia) Jan 15, 1969 First Man on Moon (Neil Armstrong, USA) Jan 15, 1974 Watergate Richard Nixon was serving as the President of the United States during the watergate scandal. Period: Jan 15, 2000 to Jan 15, 2013 NCLB mandate in schools Sep 11, 2001 World Trade Center Attacks