In the mid-seventeenth century, Shabbatai Zvi, a rabbi from Izmir, claimed to be the Jewish messiah, and convinced a great many Jews to believe him. The movement surrounding this messianic pretender was enormous, and Shabbatai's mission seemed to be affirmed by the numerous supporting prophecies of believers. The story of Shabbatai and his prophets has mainly been explored by specialists in Jewish mysticism. Only a few scholars have placed this...