The geographical lore of the time of the Crusades : $b A study in the history of medieval science and tradition in Western Europe

A careful, page‑turning survey of how Western Europe imagined the world during the Crusading era, this study follows the thread of geographic thought from the ancient Greeks through early medieval Christian writers. It reveals how philosophers such as Pythagoras, Plato and Aristotle were filtered through Biblical interpretation, shaping ideas about the Earth’s shape, zones, and the heavens long before travelers set foot in distant lands.

The narrative then opens the door to the vibrant exchange with the Muslim world, showing how Arabic scholars preserved and expanded Ptolemaic knowledge, produced new tables for latitude and longitude, and inspired a fresh wave of mapmaking. By weaving together theological treatises, scientific treatises, and surviving maps, the author paints a vivid picture of a medieval mind striving to reconcile faith and observation. Listeners will come away with a richer sense of the intellectual adventure that underpinned the age of crusades, long before modern geography took hold.