1942-1953 By bradleyharris Jul 20, 1942 First Atomic Bomb Jun 4, 1944 D-Day Allied forces storm the beaches of France Apr 12, 1945 President Roosevelt President Roosevelt passes away May 7, 1945 Germany Surrenders conclusion of WWII in Europa Aug 6, 1946 Hiroshima and Nagasaki Dropping of the two atomic bombs in Japan Jun 25, 1950 Korean War Korean war begins Nov 1, 1952 First Hydrogen Bomb