Although the Germans during World War II were the first to come up with both the concept it never came to light. America was the first nation to make a nuclear weapon.
US
1945
it was first noticed with the nuclear bomb tests.
No one. The first nuclear device was not tested until July of 1945, and the first bomb was not produced (not used) until later that month.
The first was made in the US. The purpose was originally to defend against the possibility of a Nazi bomb. 1945.
Germany has not made a nuclear bomb.
Atom bomb dropped in Japan by the U.S. during WWII
No one person made any nuclear bomb. Different components were/are made by different people, then a team of a dozen or more do final assembly.
trinity was the code of the detonation of the nuclear deviceit was the first nuclear bomb in the world
I think it was Arizona Actually the nuclear bomb called the Manhattan Project was made and tested in New Mexico.
first fission bomb 1945first fusion bomb 1954
Long before the first one was made. That was the purpose of making them: to have a very dangerous bomb (all bombs are dangerous).