Plato, Laws 828b

μὲν πέντε καὶ ἑξήκοντα καὶ τριακοσίων μηδὲν ἀπολείπουσαι, ὅπως ἂν μία γέ τις ἀρχὴ θύῃ θεῶν ἢ δαιμόνων τινὶ ἀεὶ ὑπὲρ πόλεώς τε καὶ αὐτῶν καὶ κτημάτων. ταῦτα δὲ συνελθόντες ἐξηγηταὶ καὶ ἱερεῖς ἱέρειαί τε καὶ μάντεις μετὰ νομοφυλάκων ταξάντων ἃ παραλείπειν ἀνάγκη τῷ νομοθέτῃ· καὶ δὴ καὶ αὐτοῦ τούτου χρὴ γίγνεσθαι ἐπιγνώμονας τοῦ παραλειπομένου τούτους τοὺς αὐτούς. ὁ μὲν γὰρ δὴ νόμος ἐρεῖ δώδεκα μὲν

not less than 365 feasts, so that some one official may always be doing sacrifice to some god or daemon on behalf of the State, the people, and their property. The interpreters, the priests, the priestesses and the prophets shall assemble, and, in company with the Law-wardens, they shall ordain what the lawgiver is obliged to omit: moreover, these same persons shall determine wherein such omissions consist. For the law will state that there are twelve feasts to the twelve gods who give their names to the several tribes: