Ответ:

In June 1942, Franklin Roosevelt formed the Uranium Committee, which adopted a secret nuclear program approved on August 13, 1942, called the Manhattan Project.

It was headed by Robert Oppenheimer, an American theoretical physicist from the University of California, Berkeley.

Prominent scientists from around the world have been involved in the task of obtaining enriched uranium to make the nuclear chain reaction possible.

On the morning of August 6, 1945, an American B-29 bomber dropped the Kid atomic bomb on the Japanese city of Hiroshima.

This was the first time in human history that nuclear weapons were used outside landfills.

The blast killed about 75,000 people and injured more than 200,000.