First atomic bomb

The nuclear test was code named Trinity, but the atomic device was nicknamed The Gadget.
Daily Sanctuary
Daily Sanctuary
The Gadget was the first atomic bomb ever made and was tested at Trinity Site, New Mexico, near Alamogordo on July 16th, 19″It was the first detonation in the Manhattan Project.

The code name “Trinity” was coined by J. Robert Oppenheimer, taken from a line of John Donne poetry. The Gadget had the same design as Fat Man, the bomb that destroyed Nagasaki.