1911 Encyclopædia Britannica, Volume 1… (1911)
“ In 668 Pope Vitalian sent Theodore of Tarsus to be archbishop of Canterbury, and about the same time came the African scholar Hadrian, who became abbot of St Augustine’s at Canterbury. Aldhelm was one of his disciples, for he addresses him as the “venerable preceptor of my rude childhood.” He must, nevertheless, have been thirty years of age when he began to study with Hadrian. His studies included Roman law, astronomy, astrology, the art of reckoning and the difficulties of the calendar. ”
