In the remote north-east of Asia Minor "Cappadocia on the sea," or more briefly the "sea-state," Pontus, increased in extent and importance. Not long after the battle of Magnesia king Pharnaces I had extended his dominion far beyond the Halys to Tius on the frontier of Bithynia, and in particular had possessed himself of the rich Sinope, which was converted from a Greek free city into the residence of the kings of Pontus. It is true that the neighbouring states endangered by these encroachments, with king Eumenes II at their head, had on that account waged war against him (571-575), and under Roman mediation had exacted from him a promise to evacuate Galatia and Paphlagonia; but the course of events shows that Pharnaces as well as his successor Mithradates V. Euergetes (598?-634), faithful allies of Rome in the third Punic war as well as in the struggle with Aristonicus, not only remained in possession beyond the Halys, but also in substance retained the protectorate over the Paphlagonian and Galatian dynasts. It is only on this hypothesis that we can explain how Mithradates, ostensibly for his brave deeds in the war against Aristonicus, but in reality for considerable sums paid to the Roman general, could receive Great Phrygia from the latter after the dissolution of the Attalid kingdom. How far on the other hand the kingdom of Pontus about this time extended in the direction of the Caucasus and the sources of the Euphrates, cannot be precisely determined; but it seems to have embraced the western part of Armenia about Enderes and Divirigi, or what was called Lesser Armenia, as a dependent satrapy, while the Greater Armenia and Sophene formed distinct and independent kingdoms. Syria and Egypt