The author of " Childhoods " was the Soviet Union's Tolstoy. It told the story of the protagonist Katyusha's growth from childhood to adulthood, as well as her relationships with family members, friends, and neighbors. The main content of " childhood " included Katyusha's growth, family disputes, social changes, and so on. The main characters included her father, mother, Katyusha's siblings, neighbors, and so on. The enlightenment of " childhood " was to express Tolstoy's deep thoughts on human nature and society, to reveal some problems of the Soviet society at that time, and to show the complexity and variety of human growth.