Expanding now familiar debates about the impact of the 'historical turn' upon the field of international law, this article considers some of the different ways in which 'turn to history' scholars have confronted the methodological and theoretical tensions arising from the central, yet paradoxical, role occupied by the sources doctrine in international law. We suggest that the anxiety over the sources of international law as the basic methodological precepts of the discipline has been a catalyzing element for a radical reengagement with the canon of international law, one with a significant impact on the field's existing parameters and doctrinal limits. Within the three streams of scholarship we explore here, history has become a site of cre...