This book explores the phenomenon of Saturnism, namely the belief that the planet Saturn, the seventh known planet in ancient astrology, was appointed upon the Jews, who celebrated the Sabbath, the seventh day of the Jewish week.
Moshe Idel details how the anonymous, late 14th century Sefer Ha-Peliyah was to have disturbing consequences in the Jewish world three centuries later, interweaving luminaries with the cultural, historical, religious,...