Plato, Laws 695c

λέγεται δὴ ταῦτά γε, καὶ ἔοικεν σχεδὸν οὕτω πως γεγονέναι. καὶ μὴν καὶ πάλιν εἰς Πέρσας ἐλθεῖν τὴν ἀρχὴν διὰ Δαρείου καὶ τῶν ἑπτὰ λέγεταί που. τί μήν; θεωρῶμεν δὴ συνεπόμενοι τῷ λόγῳ. Δαρεῖος γὰρ βασιλέως οὐκ ἦν ὑός, παιδείᾳ τε οὐ διατρυφώσῃ τεθραμμένος, ἐλθὼν δʼ εἰς τὴν ἀρχὴν καὶ λαβὼν αὐτὴν ἕβδομος, διείλετο ἑπτὰ μέρη τεμόμενος, ὧν καὶ νῦν ἔτι σμικρὰ ὀνείρατα λέλειπται, καὶ νόμους ἠξίου θέμενος οἰκεῖν ἰσότητα

the truth. Further, the story tells how the kingdom was restored to the Persians through Darius and the Seven. It does. Let us follow the story and see how things went. Darius was not a king’s son, nor was he reared luxuriously. When he came and seized the kingdom, with his six companions, he divided it into seven parts, of which some small vestiges remain even to this day;