THE KINGDOM OF PONTUS (337 B.C.-63 A.D.)
The dynasty of Pontine kings is reckoned from Ariobarzanes I, about the beginning of the fourth century B.C. But both he and his son Mithridates I, and grandson, Ariobarzanes II, are Persian satraps, and it is not until
337 that Mithridates II, son of the last satrap, makes himself independent. His rule is not uninterrupted.
318 About this time, Antigonus I forms a plan to kill him, and he flees to Paphlagonia, and afterwards supports Eumenes against Antigonus. He then recovers his throne and fixes himself firmly on it.
302 Mithridates III succeeds his father. He adds part of Cappadocia and Paphlagonia to his dominions. He allies himself with the Heracleans, and obtains help of the Gauls to overthrow a force sent against him by Ptolemy, king of Egypt.
266 Ariobarzanes III succeeds his father.
240 Mithridates IV succeeds his father. He repels the Gauls shortly after his accession.
220 Unsuccessful attempt to capture Sinope.
190 Pharnaces I succeeds his father.
183 Capture of Sinope. The frontiers of Pontus are extended to Bithynia.