Chronicling the Commune’s returns across a surprisingly vast and visually striking archive of periodical poems and illustrations, panoramic spectacles, children’s adventure fiction, popular and canonical novels, political pamphlets, avant-garde theater productions, and radical pulp, this book argues that the Commune became, for writers and readers across virtually all classes and political persuasions, a critical locus for re-occupying both radical and mainstream memory of revolution and empire, a key site for negotiating post-bellum gender trouble and regional reconciliation, and a vital terrain for rethinking Paris—and what it meant to be an American there—in U.S. fiction and culture. For Americans felt Paris to be curiously their own long before the Moderns made it their hometown. This introductory chapter explores the key words at the heart of the book, and offers a taste of its material terrain. It concludes with an overview of its subsequent chapters.