By the early twentieth century, as Woodrow Wilson would later declare, the United States had become both the literal embodiment of all the earth's peoples and a nation representing all other nations and cultures through its ethnic and cultural diversity. This idea of connection with all peoples, Nathaniel Cadle argues, allowed American literary writers to circulate their work internationally, in turn promoting American literature and also the nation itself. Reexamining the relationship between Progressivism and literary realism, Cadle demonstrates that the narratives constructed by American...