<human>:  What was the name of the atomic bomb that was dropped on Hiroshima?
<bot>: The atomic bomb that was dropped on Hiroshima was called Little Boy. It was the first nuclear weapon ever used in warfare. Little Boy was dropped on Hiroshima on August 6th, 1945. It was dropped from the B-29 bomber Enola Gay. The Enola Gay was named after the mother of Colonel Paul Tibbets, the pilot who dropped Little Boy.