Hiroshima Day commemorates 6th August 1945, the day when an atomic bomb was dropped on the Japanese city of Hiroshima.
Hiroshima is the capital of Hiroshima Prefecture, and the largest city in the Chūgoku region of western Honshu, the largest island of Japan.
It is best known as the first city in history to be targeted by a nuclear weapon when the United States Army Air Forces dropped an atomic bomb on it at 8:15 a.m. on August 6, 1945, near the end of World War II.
During World War II, the and Chugoku Regional Army were headquartered in Hiroshima, and the Army Marine Headquarters was located at Ujina port. The city also had large depots of military supplies, and was a key center for shipping.
On Monday, August 6, 1945, at 8:15 a.m., the nuclear bomb "Little Boy" was dropped on Hiroshima by an American B-29 bomber, the Enola Gay, flown by Colonel Paul Tibbets, directly killing an estimated 80,000 people. By the end of the year, injury and radiation brought total casualties to 90,000–140,000. The population before the bombing was around 340,000 to 350,000. Approximately 69% of the city's buildings were destroyed, and another 7% severely damaged.
Hiroshima Day is now a focus for anti-war and anti-nuclear discussions and demonstrations. Hiroshima Day is an opportunity to raise awareness about the threat of nuclear weapons and the dangers of nuclear energy.