In 708, some monks at Hexham accused Bede of having committed heresy in his work "De Temporibus". The standard theological view of world history at the time was known as the Six Ages of the World; in his book, Bede calculated the age of the world for himself, rather than accepting the authority of Isidore of Seville, and came to the conclusion that Christ had been born 3,952 years after the creation of the world, rather than the figure of over 5,000 years that was commonly accepted by theologians. The accusation occurred in front of the bishop of Hexham, Wilfrid, who was present at a feast when some drunken monks made the accusation. Wilfrid did not respond to the accusation, but a monk present relayed the episode to Bede, who replied within a few days to the monk, writing a letter setting forth his defence and asking that the letter also be read to Wilfrid. Bede had another brush with Wilfrid, for the historian says that he met Wilfrid sometime between 706 and 709 and discussed Æthelthryth, the abbess of Ely. Wilfrid had been present at the exhumation of her body in 695, and Bede questioned the bishop about the exact circumstances of the body and asked for more details of her life, as Wilfrid had been her advisor.