 He then accepted a teaching position as assistant lecturer in Logic at Glasgow before being appointed university lecturer at Oxford in Ancient Philosophy in 1949.Granted two years of study-leave, Ackrill was a visiting scholar at the Institute for Advanced Study in 1950-51 (as he was again in 1961-62) before becoming, in 1953, a tutorial fellow at Brasenose College.In 1966, Oxford university created a statutory chair in the History of Philosophy, to which Ackrill was elected as the first holder.