Thucydides, VI, 28. I.G. II (2), 968, line 14. Plato, Eryxias, 394c and 400b. I.G., II (2), 5056 and 5060. I.G. II (2), 958. I.G. II (2), 3867. Athenaeus, V, 212, d-e. Philostratos, Vitae Sophistarum, ... Agora 3 21 ... 141-140 B.C ... 141-140 B.C.