For medieval Latin Christendom, authoritative texts such as the Bible and the writings of the Fathers of the Church provided a skeleton that gave form to Christian perceptions of Jews and Judaism. Eye-witness testimony, hearsay, reports of converts from Judaism, and the testimony of dreams, visions, and miraculous events helped fill in the body with concrete detail. In this newest work, renowned author and scholar Irven Resnick explores the additional support drawn from medieval science. Resnick presents a captivating study of long-held medieval scientific theories that predisposed Jews to certain types of offensive behavior or even to communicate certain illnesses and disease. By arguing for a Jewish nature dictated by specific physical characteristics, medieval scientific authorities contributed to growing fears of a Jewish threat.

Irven M. Resnick is professor of philosophy and religion, and Chair of Excellence in Judaic Studies at the University of Tennessee at Chattanooga. He is a corresponding fellow at the Ingeborg Rennert Center for Jerusalem Studies at Bar-Ilan University and a senior associate at the Oxford Centre for Hebrew and Jewish Studies. His most recent publications include translations of Albert the Great's Questions concerning Aristotle's "On Animals"; Petrus Alfonsi's Dialogue Against the Jews; and Peter Damian's Letters, all published in the Fathers of the Church Mediaeval Continuation Series by CUA Press.