World War 2 Events By Jonneleonor Nov 24, 1942 J. Robert Oppenheimer was a physicist and director Manhattan Projected Jul 16, 1945 The first atomic detonation in Tinian island Aug 6, 1945 THe first bombing was in Hiroshima Aug 8, 1945 The second attack was in Nagasaki Aug 14, 1945 This is the time when Japs surrender the war.