This chapter provides an in-depth history of the international development of the crime genre prior to the twentieth century. The chapter traces the emergence of a transnational genre from the 1700s through legal narratives and Romantic preoccupations and aesthetics in France, Germany, England, the United States, the Scandinavian countries and Australia. While crime fiction scholars have traditionally maintained that the genre emerged in Britain and America, this chapter places doubt on the supposed centrality of the genre’s British and American genealogy. By examining the genre’s early transnational mobility, the chapter challenges the dominant perception that the genre’s transnationality is a consequence of twentieth- and twenty-first-century globalization and, as such, that it is largely a contemporary phenomenon.