Who made the atomic bomb first?

The atomic bomb was made by a group of people.

BACKGROUND: Einstein published the mass-energy formula E=MC2, and a German scientist published an article about the huge energy produced by nuclear fission.

At this time, the international community is nervous and afraid that Germany will build an atomic bomb. In order to build the atomic bomb before the Germans, the United States called all the allied scientists to study the atomic bomb, codenamed "Manhattan Project", and the head of the research institute was Robert Oppenheimer (China likes to call him "the father of the atomic bomb").

Strictly speaking, the atomic bomb was made by scientists all over the world (Chinese-American Wu Jianxiong solved the major problem that the chain reaction could not continue and made a key contribution to the successful explosion of the atomic bomb. She is called "the first lady of physics in the world", but unfortunately all talents have emigrated. )