who created the atomic bomb.why did they use it
The history of the atomic bomb began with the Manhattan Project. It was tasked to create the bomb beginning in 1939. The scientists who invented the bomb included Robert Oppenheimer, Edward Teller, Rudolf Peierls and many others.
Next. Inspired by scientists who feared atomic bomb development by Germany, the United States began studying the atomic bomb when World War II began in 1939. In August 1942 the U.S. launched a development program called the Manhattan Project.