In 1945, an American B-29 bomber dropped an atomic bomb on the Japanese city of Hiroshima on August 6, and Nagasaki was bombed three days later, on August 9.
The atomic bombings were widely discussed with the recent release of a Hollywood biopic "Oppenheimer", which revolves around the creation of the atomic bomb and the creator Robert Oppenheimer. The film hasn't been released in Japan yet, whihc shows that the wounds in Japan are slow to heal even after 78 years.
The bombs wiped out around 90 per cent of the cities and killed around 129,000 and 226,000 people in Hiroshima and Nagasaki respectively. The toll included those who died as a result of radiation exposure. Japan surrendered a few days after the second attack, thereby ending World War II.
Here are some of the lesser-known facts about the 1945 catastrophe: