Le règne de Charlemagne reconsidéré.

This volume examines afresh the various ways in which the introduction of ancient and Arabic optical theories transformed thirteenth-century thinking about vision, how scientific learning came to be reconciled with theological speculation, and the effect these new developments had on those who learned about them through preaching.

This book provides for the first time a survey of the important features of educational activities and structures in various Islamicate societies between 800 and 1700 with regard to the mathematical and occult sciences, medicine, and natural philosophy.