Changing World By WilliamLie Aug 6, 1945 Bombing of Hiroshima Aug 9, 1945 Bombing of Nakasaki Oct 24, 1945 Creation of united nations Period: Jan 1, 1947 to Dec 31, 1990 Cold War Dec 10, 1948 Declaration of human rights Period: Jun 25, 1950 to Jul 27, 1953 Korean War Period: Nov 1, 1955 to Apr 30, 1975 Vietnam War Aug 13, 1961 Berlin Wall Built Jul 20, 1969 Moon Landing Nov 9, 1989 Falling of Berlin wall Sep 11, 2001 9/11 Oct 4, 2016 Now