Bunsaku Arakatsu, a personal friend and former student of Albert Einstein, had the most powerful branch of the navy secretly advance him some money for a project on a uranium bomb. Arakatsu had theorized the great energy of an atom. In 1939 Albert Einstein wrote a letter to the president of the United States, Franklin Roosevelt. In the letter, Roosevelt warned that it was possible that the Germans were ahead of the United States in the production in the bomb. After the letter was written , a lab in Chicago was set up. "Chicago ended up being the primary research site for the atomic bombaE (Wilcox, 82).
In July 1941 began a race to produce an atomic weapon ahead of the Germans and in time to be used during the war. A director of a research, Nobel prize winner, Arthur H. Compton, made a time schedule for the project in January 1942:
-By July 1942, to determine whether a chain reaction was possible.
-By January 1943, to achieve the first (controlled) chain reaction.
-By January 1944, to extract the first element 94 from uranium.
-By January 1945, to have a bomb. ( Spector, 551)(Hewlett and Anderson, The New World ).