The fall of the crusader-controlled city of Acre to the Muslims in 1291 inspired many schemes for crusades to recover Jerusalem and its environs. One of these proposals is How to Defeat the Saracens, written around 1317 by William of Adam, a Dominican who traveled extensively in the eastern Mediterranean, Persia, and parts of India. The treatise, poorly known even among specialists, presents a five-pronged plan for retaking the Holy Land. In particular, it focuses on cutting off economic and military support for Egypt. William’s personal experience in the lands he describes comes through, for example, when he recollects his encounters in Persia with a captive Greek woman whose child he baptized, and in India with a lapsed Christian who said that God had abandoned him. In this volume Giles Constable provides a critical edition of the Latin text and a facing English translation. Extensive notes, produced in collaboration with other experts, guide the reader through the political, geographical, economic, military, and historical context of this fascinating work.

Peter the Venerable's extensive literary legacy includes poems, a large epistolary collection, and polemical treatises. The first of his four major polemics targeted a Christian heresy, the Petrobrussians (Against the Petrobrusians); the rest took aim at Jews and Saracens. Catholic University of America Press has published his Against the Inveterate Obduracy of the Jews. This present volume will make available in their entirety Peter the Venerable's twin polemics against Islam - A Summary of the entire heresy of the Saracens and Against the sect of the Saracens - as well as related correspondence. These works resulted from a sustained engagement with Islam begun during Peter's journey to Spain in 1142-43. There the abbot commissioned a translation of sources from the Arabic, the so-called Toledan Collection, that include the Letter of a Saracen with a Christian Response (from the Apology of [Ps.] Al-Kindi ); Fables of the Saracens (a potpourri of Islamic hadith traditions); and Robert of Ketton's first Latin translation of the whole of the Qur'an. Thanks to Peter's efforts, from the second half of the twelfth century Christians could acquire a far better understanding of the teachings of Islam, and Peter may rightly be viewed as the initiator of Islamic studies in the West.