NHD 2018-2019 By nhdmiddleschoolsrf Apr 22, 1904 J. Robert Oppenheimer is Born Sep 1, 1939 World War II Begins Dec 7, 1941 Bombing of Pearl Harbor Dec 29, 1942 The Manhattan Project Begins Jul 16, 1945 The Trinity Test Aug 6, 1945 Bombing of Hiroshima Aug 9, 1945 Bombing of Nagasaki Sep 3, 1945 World War II Ends Feb 19, 1967 J. Robert Oppenheimer Dies