For the details of the work of Biscop in the organisation of his monasteries and in the supervision of the work in their _scriptoria_, and concerning his various architectural and artistic undertakings, we are largely indebted to the historian Beda, or Bede. Bede was a pupil of Biscop in the monastery of Yarrow, and it was in this monastery that were written the famous _Chronicles_. It was the time of comparative peace in the island which preceded the first Danish invasion. The fame of the scholar who produced these chronicles was destined to eclipse that of nearly all the Saxon saints and kings, who were in fact known to posterity principally through the pen of the Venerable Bede. It is to Biscop, however, that should be credited the literary surroundings under which Bede was educated, and it is probable that without the stimulating influence of the books secured by the abbot in his wearisome journeys to Southern Europe, the monk would hardly have had the capacity or the incentive to complete his work. Coelfried, who later became Abbot of Yarrow, and who, after the death of Biscop, was in charge also of the monastery of Wearmouth, continued the interest of his predecessor in the libraries and in the work done by the scribes in the _scriptoria_. Among the books brought from Rome by Biscop was a curious work on cosmography, which King Alfred was very anxious to possess. Abbot Coelfried finally consented to let the King have the book in exchange for land sufficient to support eight families. Coelfried had had made in the _scriptorium_ of Wearmouth two complete copies of the Bible according to the version of S. Jerome, the text of which had been brought from Rome. These copies were placed, one in the church of Wearmouth and one in that of Yarrow, and were open for the use not only of the monks, but of any others who might desire to consult them and who might be able to read the script. Montalembert refers to this instance as a refutation of “the stupid calumny” which represents the Church as having in former times interdicted to her children the knowledge of the sacred Scriptures.[134]