
Hiroshima in America epub. Hiroshima Facts Harry S Truman was the 33rd American President who served in office from April 12, 1945, the day that President Franklin D. Roosevelt died, to January 20, 1953. One of the most important events during Truman's presidency was when the atomic bomb was dropped on the Japanese city of Hiroshima. At the time of its bombing, Hiroshima was a city of both industrial and military significance. A number of military units were located near, the most important of which was the headquarters of Field Marshal Shunroku Hata