3. There is another bay[1209] continuous with that of Astacus, which advances further towards the east, and where is situated Prusias,[1210] formerly called Cius. Philip, the son of Demetrius, and father of Perseus, gave it to Prusias, son of Zelas, who had assisted him in destroying both this and Myrleia,[1211] a neighbouring city, and also situated near Prusa. He rebuilt them from their ruins, and called the city Cius Prusias, after his own name, and Myrleia he called Apameia, after that of his wife. This is the Prusias who received Hannibal, (who took refuge with him hither after the defeat of Antiochus,) and retired from Phrygia[1212] on the Hellespont, according to agreement with the Attalici.[1213] This country was formerly called Lesser Phrygia, but by the Attalici Phrygia Epictetus.[1214] Above Prusias is a mountain which is called Arganthonius.[1215] Here is the scene of the fable of Hylas, one of the companions of Hercules in the ship Argo, who, having disembarked in order to obtain water for the vessel, was carried away by nymphs. Cius, as the story goes, was a friend and companion of Hercules; on his return from Colchis, he settled there and founded the city which bears his name. At the present time a festival called Oreibasia, [CAS. 564] is celebrated by the Prusienses, who wander about the mountains and woods, a rebel rout, calling on Hylas by name, as though in search of him. The Prusienses having shown a friendly disposition towards the Romans in their administration of public affairs, obtained their freedom. But the Apamies were obliged to admit a Roman colony. Prusa, situated below the Mysian Olympus, on the borders of the Phrygians and the Mysians, is a well-governed city; it was founded by Cyrus,[1216] who made war against Crœsus. 4. It is difficult to define the boundaries of the Bithynians, Mysians, Phrygians, of the Doliones about Cyzicus, and of the Mygdones and Troes; it is generally admitted that each of these tribes ought to be placed apart from the other. A proverbial saying is applied to the Phrygians and Mysians, “The boundaries of the Mysi and Phryges are apart from one another,” but it is difficult to define them respectively. The reason is this; strangers who came into the country were soldiers and barbarians; they had no fixed settlement in the country of which they obtained possession, but were, for the most part, wanderers, expelling others from their territory, and being expelled themselves. All these nations might be supposed to be Thracians, because Thracians occupy the country on the other side, and because they do not differ much from one another.