back in August 6, 1945, at 8:15 a.m. (Hiroshima time), the nuclear weapon "Little Boy" was dropped on Hiroshima from an American Boeing B-29 Superfortress, the Enola Gay, flown by Colonel Paul Tibbets, directly killing at least 70,000 people, including thousands of Korean slave laborers. Fewer than 10% of the casualties were military. By the end of the year, injury and radiation brought the total number of deaths to 90,00 - 166,000. The population before the bombing was around 345,000. About 70% of the city's buildings were destroyed, and another 7% severely damaged.
