First Atomic Bombs Dropped on Japan
The United States dropped the first atomic bomb, a "Little Boy" enriched uranium fission type bomb, on Hiroshima, Japan on August 6, 1945. This event was followed three days later when, on August 9th, the U.S. dropped a second atomic bomb, a Fat Boy plutonium bomb, on the city of Nagasaki. The bombings were devastating in terms of the number of lives lost, with some estimates suggesting a death toll greater than 200,000 people. The Empire of Japan surrendered the following week, ending World War II on August 15, 1945.