7/16/1945
On this day in 1945, at 5:29:45 a.m., the Manhattan Project comes to an explosive end as the first atom bomb is successfully tested in Alamogordo, New Mexico.
Plans for the creation of a uranium bomb by the Allies were established as early as 1939, when Italian emigre physicist Enrico Fermi met with U.S. Navy department officials at Columbia University to discuss the use of fissionable materials for military purposes.
Atom bomb successfully tested — History.com This Day in History — 7/16/1945