Plato, Laws 698c

ἔτι μείζονα ἐποίησεν ἡμᾶς τοῖς τε ἄρχουσιν καὶ τοῖς νόμοις δουλεῦσαι, καὶ διὰ πάντα ταῦθʼ ἡμῖν συνέπεσε πρὸς ἡμᾶς αὐτοὺς σφόδρα φιλία. σχεδὸν γὰρ δέκα ἔτεσιν πρὸ τῆς ἐν Σαλαμῖνι ναυμαχίας ἀφίκετο Δᾶτις Περσικὸν στόλον ἄγων, πέμψαντος Δαρείου διαρρήδην ἐπί τε Ἀθηναίους καὶ Ἐρετριᾶς, ἐξανδραποδισάμενον ἀγαγεῖν, θάνατον αὐτῷ προειπὼν μὴ πράξαντι ταῦτα. καὶ ὁ Δᾶτις τοὺς μὲν Ἐρετριᾶς ἔν τινι

to our rulers and our laws; and because of all this, our mutual friendliness and patriotism was greatly intensified. It was just about ten years before the seafight at Salamis that the Persian force arrived under Datis, whom Darius had despatched expressly against the Athenians and Eretrians, with orders to bring them back in chains, and with the warning that death would be the penalty of failure. So within a very short time