Plato, Laws 682b

πάνυ μὲν οὖν. κατῳκίσθη δή, φαμέν, ἐκ τῶν ὑψηλῶν εἰς μέγα τε καὶ καλὸν πεδίον Ἴλιον, ἐπὶ λόφον τινὰ οὐχ ὑψηλὸν καὶ ἔχοντα ποταμοὺς πολλοὺς ἄνωθεν ἐκ τῆς Ἴδης ὡρμημένους. φασὶ γοῦν. ἆρʼ οὖν οὐκ ἐν πολλοῖς τισι χρόνοις τοῖς μετὰ τὸν κατακλυσμὸν τοῦτο οἰόμεθα γεγονέναι; πῶς δʼ οὐκ ἐν πολλοῖς; δεινὴ γοῦν ἔοικεν αὐτοῖς λήθη τότε παρεῖναι τῆς

Most certainly. Ilium was founded, we say, after moving from the highlands down to a large and noble plain, on a hill of no great height which had many rivers flowing down from Ida above. So they say. And do we not suppose that this took place many ages after the Deluge? Many ages after, no doubt. At any rate they seem to have been strangely forgetful