In 1945 in World War II, the United States dropped two atomic bombs on Japan. It took from 1939 until 1945 to develop the bomb.
India detonated it's first nuclear weapon on 1974at (POKRAN)a desert area in RAJASTHAN.
1949
1945
1945
The first nuclear weapon was constructed by the US in the first half of 1945. This weapon, which was set atop a tower (static test) and code-name Trinity, was detonated on July 16, 1945. The second and third weapons were built later in the year, and these were the pair that was dropped on Japan.
Never. The first nuclear explosion was on July 16, 1945 in the Journado Del Meurto inside what is now Whitesands Proving Grounds.
The U.S. dropped a nuclear weapon called Little Boy on the city of Hiroshima on Monday, August 6, 1945.
The first "Lethal Weapon" came out in 1987.
Avtomat Kalishnikova, 1947 (automatic weapon made by Kalishnikov, and the year of its first design).
July 16, 1945 just before dawn
1942
The first nuclear reactor was in former Soviet Union that operated in year 1954 at obninisk.