1945 was the first year that a Nuclear bomb was successfully tested then used in combat.
That is when they were first:developedtested: July 16used in combat: August 6 & 9
1945 bombs droped on japan 1949 Russia created a nuclear bomb 1957brittan got a nuke
Nuclear weapons against mankind happened in 1945. Other than that it has not happened again.
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Since 1945.
August 6, 1945: HiroshimaAugust 9, 1945: Nagasaki
From 1945 until the late 1970s or early 1980s the United States always had the most nuclear weapons. After then the USSR/Russia has had the most nuclear weapons.
Trinity was the code name of the first nuclear weapons test of an atomic bomb. This test was conducted by the United States Army on July 16, 1945.