Когда начался «Урановый проект»?
The German nuclear weapons project (; informally known as the "Uranverein"; ) was a scientific effort led by Germany to develop and produce nuclear weapons during World War II. The first effort started in April 1939, just months after the discovery of nuclear fission in December 1938, but ended only months later due to the German invasion of Poland, after many notable physicists were drafted into the "Wehrmacht".
April 1939