This title explores the dropping of a deadly atomic bomb on the Japanese city of Hiroshima. Genocide, intentional nuclear destruction, world war -- what inspired such events and what was left in their wake? How Did It Happen? investigates these questions and others as it probes some of the major turning points in modern history. Encouraging readers to develop interpretive and critical thinking skills, this series from Lucent Books combines primary source materials, full-color images, expert opinions and narrative explanation of the causes and effects of key economic, political and militaristic events in 20th-century history.