There are many site. You mean what? The actual use of war or the one tested by US before the actual use against Japan.
If u meant the test before using against Japan @ World War 2, then it is in Socorro, New Mexico (White Sands Missile Range, near Alamogordo.) on 16 July 1945. If you meant the actual usage against Japanese, it is on Hiroshima and Nagasaki respectively (Aug 6 1945 and Aug 9 1945 respectively.)
The Japanese cities of Hiroshima and Nagasaki .
Hiroshima
Hiroshima and Nagasaki were two in Japan.
Hiroshima and Nagasaki Japan
in japan the cities Hiroshima and Nagasaki
See: Atomic bombing of Hiroshima and Nagasaki
atomic bombing
Pearl Harbor United States of America Hawian Islands December 7th 1941, Japan's attack on US.
1945
The atomic bombing of Japan was done to end WW2 as fast as possible with as little loss of life as possible.
Yes. Atomic and nuclear have the same meaning.
1945
The world needed peace and the atomic bombing brought it.