The Athenian Agora 24; Late Antiquity A.D. 267-700; From Diokletian to the Visigothic Invasion; Diokletian to Julian the Apostate A.D. 284-363; The Reflorescence of the Schools. Eusebius, v. Const. II.48-46 ... Agora 24 17 ... Walden, The Universities of Ancient Greece, New York 1909 ... Clarke, Higher Education in the Ancient World, London 1971 ... A.F. Norman, London/New York 1965