Participants will investigate the Sabbatean excitement and the movement’s activities in Italy. Others will address the aftermath of this messianic movement in later generations on the Peninsula. We hope to broaden the conversation in several ways, first through consideration of other millenarian preaching and excitement among Jews during the 16th, 17th, and early 18th centuries. Also participants have been encouraged to compare Sabbateanism with millenarian and heretical movements among Christians and Muslims in Italy, in the Mediterranean, and in Europe more widely. The conference will go beyond the enthusiasts themselves to describe the various types of reaction they elicited—whether celebration or suppression, passive disregard or active discipline.