Surveys the medieval achievements and modern significance of Christian, Islamic, and Judaic life and culture. Like the other volumes in the series, this is a self-contained work that also fits into a comprehensive history of mankind. It includes the dramatic stories of St. Augustine, Charlemagne, William the Conqueror, Eleanor of Aquitaine, Richard the Lionheart, Saladin, Maimonides, St. Francis, St. Thomas Aquinas, Roger Bacon, and many others.