Relates the story, told by a monk named Notker the Stammerer, of how the Emperor Charlemagne sent an ambassador to Baghdad, the center of the Muslim world, to learn about the great ruler in the East, Haroun al Rashid. Includes notes on the factual basis of the story. Mary Tavener Holmes and John Harris used chronicles of Charlemagne's court and boiographis of Charlemagne's court and biographies of Charlemagne, among other sources, for their research....