Original sentence: HIROSHIMA WAS BOMBED BY Säm
Edited sentence: Approximately 69% of the city's buildings were completely destroyed, and 6.6% severely damaged.By the end of the year, injury and radiation brought total casualties to 90,000-140,000.During World War II, the Second Army and Chugoku Regional Army were headquartered in Hiroshima, and the Army Marine Headquarters was located at Ujina port.For example, Toyama, an urban area of 128,000, was nearly fully destroyed, and incendiary attacks on Tokyo are credited with claiming 90,000 lives.However, the threat was certainly there and to protect against potential firebombings in Hiroshima, students were mobilized to demolish houses and create firebreaks.Much has been written in news reports, novels, and popular culture about Hiroshima in the years after the bombing.On Monday, August 6, 1945 at 8:15 AM, the nuclear weapon Little Boy was dropped on Hiroshima by the crew of the American B-29 bomber Enola Gay, directly killing an estimated 80,000 people.Research about the effects of the attack was restricted during the occupation of Japan, and information censored until the signing of the San Francisco Peace Treaty in 1951, restoring control to the Japanese.The bombing of Tokyo and other cities in Japan during World War II caused widespread destruction and over 200,000 deaths, nearly all civilians.The city also had large depots of military supplies, and was a key center for shipping.There were no such air raids in Hiroshima