Boundaries—physical, political, social, religious, and cultural—were a key feature of life in medieval and early modern Poland, and this volume focuses on the ways in which these boundaries were respected, crossed, or otherwise negotiated. It throws new light on the contacts between Jews and Poles, including the vexed question of conversion and the tensions it aroused. The collected articles also discuss relations between the various elements of Jewish society—the wealthy and the poor, the educated and the uneducated, and the religious and the lay elites, considering too contacts between Jews in Poland and those in Germany and elsewhere. Classic studies by such eminent scholars as Meir Bałaban, Jacob Goldberg, and Moshe Rosman provide a foil for new research by Hanna Zaremska and David Frick, as well as Adam Teller, Magda Teter, Elisheva Carlebach, Jürgen Heyde, and Adam Kaźmierczyk. Taken together, the contributions on this central theme help redefine the Jewish history of pre-modern Poland.

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