A Changing World By tobb May 8, 1945 VE Day Victory over Europe Aug 15, 1945 VJ Day Victory over Japan Oct 1, 1945 United Nations Established Period: Apr 20, 1947 to Apr 21, 1991 The Cold War Dec 1, 1948 Declaration of Human Rights Adopted Period: Apr 20, 1950 to Apr 21, 1953 The Korean War Period: Apr 20, 1956 to Apr 21, 1975 The Vietnam War Jul 20, 1969 The Moon Landing Apr 20, 1989 Fall of the Berlin Wall