This volume presents case studies of the phenomena that contributed to group identity in late antique Syria-Mesopotamia, in particular traditions reflecting interactions between Judaism and Christianity, among various Christian groups, and among other religious traditions of late antiquity (such as Zoroastrianism or 'paganism'). By studying Christian, Jewish and other sources that deal with the establishment, modification and deletion of boundaries, the authors seek to create a frame of reference that will in turn explain and contextualise the existing evidence concerning communication and interaction between highly diverse groups in Late Antiquity.

The Sasanian Empire was home to many religious communities. It was also a place of meeting and transformation. The studies in this volume encompass a diverse array of topics concerning these religious communities inhabiting the Sasanian Empire. Some include the Roman East in their deliberations. Most, however, deal with the interaction of one or other religious community based in the Sasanian Empire with the dominant religion of the empire, Zoroastrianism.