context: By the summer of 1945, the Americans managed to build 3 atomic bombs, 2 of which were dropped on Hiroshima and Nagasaki, and the third was tested shortly before. The design of Hiroshimov’s “Baby”, a uranium nuclear bomb, was simple and reliable (although ineffective), and American scientists had no doubt about its success. Plutonium “Fat Man” had a more complex, but also more efficient design, and needed to be checked. So on July 1 July 6, 1945 in New Mexico, the world's first atomic bomb test, called the Trinity (Trinity), was conducted.
question: When was the world's first nuclear explosion?
answers.text: July 6, 1945