Passage 7.18.6
Πατρεῖ μὲν τοιαῦτα ἐς τοὺς προγόνους ὑπάρχοντα ἦν· ἰδίᾳ δὲ ἀνὰ χρόνον Πατρεῖς διέβησαν ἐς Αἰτωλίαν Ἀχαιῶν μόνοι κατὰ φιλίαν τὴν Αἰτωλῶν, τὸν πόλεμόν σφισι τὸν πρὸς Γαλάτας συνδιοίσοντες. προσπταίσαντες δʼ ἐν ταῖς μάχαις λόγου μειζόνως καὶ ὑπὸ πενίας ἅμα οἱ πολλοὶ πιεζόμενοι Πάτρας μὲν πλὴν ὀλίγων τινῶν ἐκλείπουσιν· οἱ δὲ ἄλλοι κατὰ χώραν ὑπὸ φιλεργίας ἐσκεδάσθησαν καὶ πολίσματα παρὲξ αὐτὰς Πάτρας τοσάδε ἄλλα ᾤκησαν, Μεσάτιν καὶ Ἄνθειαν καὶ Βολίνην καὶ Ἀργυρᾶν τε καὶ Ἄρβαν.
Such were the ancestral traditions current among the Patreans. At a later time, the Patreans alone from among the Achaeans crossed into Aetolia, owing to their friendly relations with the Aetolians, willing to share with them the burden of the war against the Gauls. But having suffered serious defeats in battle, and being pressed also by widespread poverty, the majority left Patrae, so that only a few remained behind. The rest scattered through the surrounding countryside out of necessity to labor upon the land, and founded other settlements in addition to Patrae itself: Mesatis, Antheia, Boline, Argyra, and Arba.