Sadako Sasaki3. Public domain image of 1950s Japan.

Sadako Sasaki was two years of age when the bombs were dropped and was severely irradiated. She survived for another ten years, becoming one of the most widely known hibakusha—a Japanese term meaning "bomb-affected person". She is remembered through the story of the more than one thousand origami cranes she folded before her death. She died at the age of 12 on October 25, 1955 at the Hiroshima Red Cross Hospital.