Yoko Moriwaki
Yoko Moriwaki was born and raised into a Japanese family in Hiroshima, Empire of Japan  (modern-day Japan). On 7 December 1941, the Japanese bombed Pearl Harbor in the Hawaii territory (modern-day Hawaii), in the United States, in a surprise attack, thus marking the beginning of the Pacific War, and also the atrocities and sufferings of Japanese civilians. The situation of the country worsened in 1945, with the bombings of most Japanese cities, in addition to hunger and forced labor for children. In April 1945, Yoko, then 12, began writing a diary. The first entry in her diary is dated 6 April 1945. Shortly after the first entry in her diary, Yoko entered the seventh grade at the Hiroshima Prefectural Girls' HS #1 School (schools in Japan begin in April). In addition to writing about her daily life and feelings, she also wrote about her education in school, and about American war planes flying over Japanese cities. The last entry in her diary is dated 5 August 1945. The following day on the morning hours of 6 August, the United States dropped a atomic bomb on the Japanese city of Hiroshima, to convince the Japanese to surrender and end World War II. 60% of the city's population had died in the bombing. Only 40% survived. Yoko Moriwaki died that same day on the evening hours of  at the age of 13, whilst hospitalized as a result of her severe wounds.