Jews, Christians, and Muslims in the Middle Ages were divided in many ways. But one thing they shared in common was the fear that God was offended by wrong belief. Medieval Heresies: Christianity, Judaism, and Islam is the first comparative survey of heresy and its response throughout the medieval world. Spanning England to Persia, it examines heresy, error, and religious dissent - and efforts to end them through correction, persuasion, or punishment...