What was the first nuclear bomb dropped?

The first nuclear bomb dropped in warfare was codenamed "Little Boy," which was released by the United States on August 6, 1945, during World War II. It was dropped on the city of Hiroshima, Japan, resulting in catastrophic destruction and significant loss of life. Little Boy was a uranium-based bomb that marked a pivotal moment in military history and ushered in the atomic age. This event ultimately contributed to Japan's surrender and the end of the war.