The text of the alliance between Athens and Sicilian Egesta is partially extant in IG i2 19 and IG i2 20.1–2. Crucial for the dating of the inscription and the alliance which it records is the third line of the first fragment, for it contains what remains of the name of the eponymous archon who held office at the time. Only the last two letters of the archon's name are clear and undisputed: they are ON, and appear in stoichoi 37 and 38. (See Plate XXIII a). On the basis of these two letters, only five fifth-century B.C. archons appear as possibilities: the name must be restored to read ηάβρον (458/7), Ἀρίστον (454/3), Ἐπαμείνον (429/8), Ἀριστίον (421/0), or Ἀντιφο̃ν (418/7).