EVB2945457: Aerial view of the K25 Plant at the Oak Ridge site of the Manhattan Project. This massive building housed the compressors and converters in which uranium hexafluoride was subjected to gaseous diffusion to separate fissionable uranium 235 from natural uranium 238. 1947 photo by Ed Westcott / Bridgeman Images
EVB2945610: U.S. Chiefs make inspection in France a week after the D-Day invasion in Normandy. June 14, 1944. Walking beside vehicle: Eisenhower, Supreme Allied Commander; General George Marshall, Chief of Staff; and (obscured behind Marshall) Henry Arnold, Commanding General, Army Air Force. World War 2 / Bridgeman Images
EVB2945702: United Nations was formulated among international leaders at Dumbarton Oaks Conference. From Aug. 21, through Oct. 7, 1944, American, British, Soviet, and Chinese representatives attended the conference chaired by Under Secretary of State, Edward Reilly Stettinius. Aug. 30, 1944. World War 2 / Bridgeman Images