Question

who destroyed Hiroshima and Nagasaki ​

Answer 1

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The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945.

Answer 2

On 6th August 1945, an atomic bomb was dropped on Hiroshima by US air forces. This was the first time a nuclear weapon had ever been used; the fireball created by the bomb destroyed 13 square kilometres of the city, and those dead as a result numbered up to 180,000.