The first atomic bomb during World War II

On August 6 and 9, 1945, the cities of Hiroshima and Nagasaki were destroyed by the first atomic bombs used in warfare. The first atomic bomb ever to be used in a military operation was dropped on the city of Hiroshima, Japan On August 6, 1945 at 8:16:02 a.m. Hiroshima time. The bomb, affectionately named "Little Boy," exploded 1,900 feet above the courtyard of Shima Hospital, with a force equivalent to 12,500 tons of TNT. By the end of 1945, 140,00 people had died as a direct result of the bombing. Within the following five years, another 60,000 would die of bomb-related causes.