The Enola Gay left its base on Tinian with two companion aircraft on the morning of AUhust 6, 1945. It flew for the Japanese mainland, aiming for the city of Hiroshima. Its payload was the nuclear bomb codenamed ‘Little Boy’, which was dropped and detonated over the target at approximately 8:15 local time.
Of the 340-350 thousand people who lived in Hiroshima, about 20% were killed in the blast itself. Another 20% died of injuries sustained in the blast or its aftermath, or from radiation sickness. Still more died later of related medical issues such as a cancer. All in all, about 200,000 human lives were ended by the first use of a nuclear bomb as a weapon of war. Hiroshima itself was devastated – the few structures that survived the inital blast were damaged or destroyed in the resulting fires.
Along with the detonation of another nuclear bomb, ‘Fat Man’, over Nagasaki three days later, and similar destruction and death there, the attack on Hiroshima was the proximate cause of Japan’s surrender to the Allies, thus ending World War Two.