J. N. Larned, History for ready reference, Volume 1…
“ In the mediæval community France held the first place. It is now well known that to place in the 15th century the revival of intellectual life and the re-establishment of civilisation, and to treat the period between the 5th century, when ancient civilisation was ruined by the barbarians, and the 15th, when the life and intellect of this civilisation reappeared and transformed the world, as one chaos, is a mistake. The chaos ends about the 10th century; in the 11th there truly comes the first re-establishment of civilisation, the first revival of intellectual life ”
