Cold War Annotated Timeline By gseversen Oct 24, 1945 United Nations formed Jun 12, 1947 Truman Doctrine Nov 24, 1947 Hollywood 10 Apr 3, 1948 Marshall Plan Apr 4, 1949 Nato formed Period: Jun 25, 1950 to Jul 27, 1953 Korean War Oct 4, 1957 Space Race/Sputnik Period: Apr 17, 1961 to Apr 20, 1961 Bay of Pigs Aug 13, 1961 Berlin Wall goes up Mar 8, 1965 U.S. official enters Vietnam War Nov 9, 1989 Berlin Wall comes down Dec 24, 1989 Soviets invade Afghanistan