ContentsVII 'Regulatory Hybridization' are being intensely discussed among growing numbers of scholars of Transnational Law, sometimes under the rubric of 'General Jurisprudence'. 2 Global communication has enhanced a dynamic process of hybridization, translation, reproduction of normative options under very different local conditions.Legal historians cannot ignore this development. 3 Instead, their professional experience should lead them to engage in these debates. In large part, legal historical research is dedicated to times and spaces in which the notion of the 'modern state' did not exist, or to historical situations of limited statehood. In Europe, for instance, generations of research on the reception of Roman and Canon law in the Middle Ages offer valuable insights into the complex processes of appropriation and reproduction of normative options in the European Middle Ages and in the Early Modern period, and the role different authorities and actors played in this. Research on these periods transports us to worlds very different from the 'Modern World' that Christopher A. Bayly invokes and which has shaped our understanding of Entanglements in Legal History. Introductory Remarks 3