The Selected Papers of Margaret Sanger, Volume 4When Margaret Sanger returned to Europe in 1920, World War I had altered the social landscape as dramatically as it had the map of Europe. Population concerns, sexuality, venereal disease, and contraceptive use had entered public discussion, and Sanger's birth control message found receptive audiences around the world. This volume focuses on Sanger from her groundbreaking overseas advocacy during the interwar years through her postwar role in creating