At the start of the Second World War, American scientists began working with the newly-recognized fission process. Most of these scientists had fled fascist regimes in Europe in the 1930s and had established their bases of research in the United States. Albert Einstein informed American president Franklin Delano Roosevelt that the Nazis had learned to split a uranium atom and were developing extensive research. Therefore, in February of 1940, U.S. government provided money to scientists to conduct research of their own.
The project was officially announced in August 1942, despite the fact that the Manhattan Project really began in late 1941. However, before 1943 the extent of the findings and conclusions were largely theoretical. The research was distributed across the country. By the summer of 1945, a laboratory directed by Robert J. Oppenheimer at Los Alamos, New Mexico isolated a sufficient quantity of plutonium to produce a nuclear explosion.
The first successful test of the atomic bomb occurred at the Los Alamogordo air base in New Mexico on July 16, 1945. It seems that the atomic tests were made possible by the influence of Abstergo Industries. The project eventually led to the dropping of two A-bombs on the Japanese cities of Hiroshima and Nagasaki.