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War & conflict
6 August 1945 · Hiroshima
The United States drops an atomic bomb on Hiroshima, causing mass civilian deaths and lasting effects from burns and radiation. The bombings and Soviet entry into the war against Japan contribute to Japan's surrender, whose precise causes remain the subject of historical debate.
Estimates concern deaths in Hiroshima by the end of 1945 and differ because of uncertainty about population, missing people and later radiation-related deaths.
Atomic bombings of Hiroshima and Nagasaki · Atomic bombings of Hiroshima and Nagasaki
Historians disagree on exact figures; the range shown reflects the scholarly literature.