cold war By bigdaddy_ Apr 23, 1945 the cold war begins Apr 23, 1947 united states announces truman doctine and marshall plan Apr 23, 1949 NATO formed Apr 23, 1953 korean war ends Apr 23, 1954 civil rights movement begins Apr 23, 1957 soviets launch sputnik 1 Apr 23, 1961 berlin wall built Apr 23, 1962 cuban missile crisis unfolds