Arist. Ath. 22.3; p. 44

十一年之后，他们在马剌松战役中获得胜利；在这次胜利后两年，即淮尼浦斯为执政官的那一年，……他们第一次施行贝壳流放法。
P. J. Rhodes takes ἐπὶ Φαινίππου ἄρχοντος to be the year of Marathon (83, 250), whereas Rizhi takes it to be the year of first ostracism, between which there exists a two-year gap.