The Jews of Palermo, like the island as a whole, tended to find themselves, depending upon the epoch or the context in question, on the frontier between two worlds, Islamic and Christian. There arose as a consequence a diachronic dialogue with the Arab-Islamic world, sustained by a cultural inheritance which differentiates Sicilian Jews from the other communities present in the peninsula. The principal evidence for a Jewish presence on the island in the first thousand years of the Christian era is provided by epigraphs and archaeological testimonies, concentrated above all in Eastern Sicily, to which one could add a handful of scattered references in literary sources. Between the end of the 10th century and the first seventy years of the 11...