Vespasian (69-79 A.D.) started free public education by appointing Quintilian Professor of Rhetoric subsidised by the state. Succeeding emperors enlarged upon it; but especially Alexander Severus (222-235 A.D.), who instituted salaries for teachers of rhetoric, literature, medicine, mechanics, and architecture in Rome and the provinces, and had poor boys attend the lectures free of charge—see Lampridius, Alex. Severus, 44.
Pliny, Paneg., 26. Spartianus, Hadrian, 7, 8-9. Capitolinus, Anton. Pius 8; id. M. Anton. Phil. II. Lampridius, Alex. Severus, 57.
Pliny, Letters, vii, 18. The sum was 500,000 sesterces.