"Mohammed and Charlemagne by the great French historian, Henri Pirenne, is not merely biographical, although it does record what little is known about the lives of Mohammed and Charlemagne. Mohammed and Charlemagne is rather a recreation of the forces which broke classical civilization in the West and provided for the emergence of a new Europe."@en
"This posthumous work of the renowned scholar Henri Pirenne (originally published in 1939) offered a new and decisive explanation of the evolution of Europe from the time of Constantine to that of Charlemagne. His revolutionary ideas overthrew many of the most cherished conceptions concerning the Middle Ages: namely that ""the Germanic invasions destroyed neither the Mediterranean unity of the ancient world, nor the essential features of Roman culture"" and that ""the cause of the break with the tradition of antiquity was the advance of Islam ... """
"Remarkable classic that developed the revolutionary theory of how the advance and influence of Islam caused the Europe of the Roman Empire to evolve into the Europe of the Middle Ages. An important ... seminal book, worthy to close one of the most distinguished careers in European scholarship.? Saturday Review of Literature."@en

"Mohammed and Charlemagne"
"Mohammed and Charlemagne"@en
"Mohammed and Charlemagne = Mohomet et Charlemagne. English"@en
"Mohammed & Charlemagne"
"Mohammed & Charlemagne"@en
"Mohammed and Charlemagne. Emphasizing the close relation between the conquests of Islam and the formation of the mediaeval occident"@en
"Mohammed and Charlemagne Henri Pirenne"