In sharp contrast to all these barbarians stood the Hellenic settlements, which at the time of the mighty impetus given to Greek commerce had been founded chiefly by the efforts of Miletus on these coasts, partly as trading-marts, partly as stations for prosecuting important fisheries and even for agriculture, for which, as we have already said, the north-western shores of the Black Sea presented in antiquity conditions less unfavourable than at the present day.

For the use of the soil the Hellenes paid here, like the Phoenicians in Libya, tax and ground-rent to the native rulers. The most important of these settlements were the free city of Chersonesus (not far from Sebastopol), built on the territory of the Scythians in the Tauric peninsula (Crimea), and maintaining itself in moderate prosperity, under circumstances far from favourable, by virtue of its good constitution and the public spirit of its citizens; and Panticapaeum (Kertch) at the opposite side of the peninsula on the straits leading from the Black Sea to the Sea of Azov, governed since the year 457 by hereditary burgomasters, afterwards called kings of the Bosporus, the Archaeanactidae, Spartocidae, and Paerisadae. The culture of corn and the fisheries of the Sea of Azov had rapidly raised the city to prosperity. Its territory still in the time of Mithradates embraced the lesser eastern division of the Crimea including the town of Theodosia, and on the opposite Asiatic continent the town of Phanagoria and the district of Sindica. In better times the lords of Panticapaeum had by land ruled the peoples on the east coast of the Sea of Azov and the valley of the Kuban, and had commanded the Black Sea with their fleet; but Panticapaeum was no longer what it had been. Nowhere was the sad decline of the Hellenic nation felt more deeply than at these distant outposts. Athens in its good times had been the only Greek state which fulfilled there the duties of a leading power - duties which certainly were specially brought home to the Athenians by their need of Pontic grain. After the downfall of the Attic maritime power these regions were, on the whole, left to themselves. The Greek land-powers never got so far as to intervene seriously there, although Philip the father of Alexander and Lysimachus sometimes attempted it; and the Romans, on whom with the conquest of Macedonia and Asia Minor devolved the political obligation of becoming the strong protectors of Greek civilization at the point where it needed such protection, utterly neglected the summons of interest as well as of honour. The fall of Sinope, the decline of Rhodes, completed the isolation of the Hellenes on the northern shore of the Black Sea. A vivid picture of their position with reference to the roving barbarians is given to us by an inscription of Olbia (near Oczakow not far from the mouth of the Dnieper), which apparently may be placed not long before the time of Mithradates.

The citizens had not only to send annual tribute to the court-camp of the barbarian king, but also to make him a gift when he encamped before the town or even simply passed by, and in a similar way to buy off minor chieftains and in fact sometimes the whole horde with presents; and it fared ill with them if the gift appeared too small. The treasury of the town was bankrupt and they had to pledge the temple-jewels. Meanwhile the savage tribes were thronging without in front of the gates; the territory was laid waste, the field-labourers were dragged away en masse, and, what was worst of all, the weaker of their barbarian neighbours, the Scythians, sought, in order to shelter themselves from the pressure of the more savage Celts, to obtain possession of the walled town, so that numerous citizens were leaving it and the inhabitants already contemplated its entire surrender.

Such was the state in which Mithradates found matters, when his Macedonian phalanx crossing the ridge of the Caucasus descended into the valleys of the Kuban and Terek and his fleet at the same time appeared in the Crimean waters. No wonder that here too, as had already been the case in Dioscurias, the Hellenes everywhere received the king of Pontus with open arms and regarded the half-Hellene and his Cappadocians armed in Greek fashion as their deliverers. What Rome had here neglected, became apparent. The demands on the rulers of Panticapaeum for tribute had just then been raised to an exorbitant height; the town of Chersonesus found itself hard pressed by Scilurus king of the Scythians dwelling in the peninsula and his fifty sons; the former were glad to surrender their hereditary lordship, and the latter their long-preserved freedom, in order to save their last possession, their Hellenism. It was not in vain. Mithradates' brave generals, Diophantus and Neoptolemus, and his disciplined troops easily got the better of the peoples of the steppes. Neoptolemus defeated them at the straits of Panticapaeum partly by water, partly in winter on the ice; Chersonesus was delivered, the strongholds of the Taurians were broken, and the possession of the peninsula was secured by judiciously constructed fortresses. Diophantus marched against the Reuxinales or, as they were afterwards called, the Roxolani (between the Dnieper and Don) who came forward to the aid of the Taurians; 50,000 of them fled before his 6000 phalangites, and the Pontic arms penetrated as far as the Dnieper[7]. Thus Mithradates acquired here a second kingdom combined with that of Pontus and, like the latter, mainly based on a number of Greek commercial towns. It was called the kingdom of the Bosporus; it embraced the modern Crimea with the opposite Asiatic promontory, and annually furnished to the royal chests and magazines 200 talents (48,000 pounds) and 270,000 bushels of grain. The tribes of the steppe themselves from the north slope of the Caucasus to the mouth of the Danube entered, at least in great part, into relations of dependence on, or treaty with, the Pontic king and, if they furnished him with no other aid, afforded at any rate an inexhaustible field for recruiting his armies.

While thus the most important successes were gained towards the north, the king at the same time extended his dominions towards the east and the west. The Lesser Armenia was annexed by him and converted from a dependent principality into an integral part of the Pontic kingdom; but still more important was the close connection which he formed with the king of the Greater Armenia. He not only gave his daughter Cleopatra in marriage to Tigranes, but it was mainly through his support that Tigranes shook off the yoke of the Arsacids and took their place in Asia. An agreement seems to have been made between the two to the effect that Tigranes should take in hand to occupy Syria and the interior of Asia, and Mithradates Asia Minor and the coasts of the Black Sea, under promise of mutual support; and it was beyond doubt the more active and capable Mithradates who brought about this agreement with a view to cover his rear and to secure a powerful ally.

Lastly, in Asia Minor the king turned his eyes towards the interior of Paphlagonia - the coast had for long belonged to the Pontic empire - and towards Cappadocia[8]. The former was claimed on the part of Pontus as having been bequeathed by the testament of the last of the Pylaemenids to king Mithradates Euergetes: against this, however, legitimate or illegitimate pretenders and the land itself protested. As to Cappadocia, the Pontic rulers had not forgotten that this country and Cappadocia on the sea had been formerly united, and continually cherished ideas of reunion. Paphlagonia was occupied by Mithradates in concert with Nicomedes king of Bithynia, with whom he shared the land. When the senate raised objections to this course, Mithradates yielded to its remonstrance, while Nicomedes equipped one of his sons with the name of Pylaemenes and under this title retained the country to himself. The policy of the allies adopted still worse expedients in Cappadocia. King Ariarathes VI was killed by Gordius, it was said by the orders, at any rate in the interest, of Ariarathes' brother-in-law Mithradates Eupator: his young son Ariarathes knew no means of meeting the encroachments of the king of Bithynia except the ambiguous help of his uncle, in return for which the latter then suggested to him that he should allow the murderer of his father, who had taken flight, to return to Cappadocia. This led to a rupture and to war; but when the two armies confronted each other ready for battle, the uncle requested a previous conference with the nephew and thereupon cut down the unarmed youth with his own hand. Gordius, the murderer of the father, then undertook the government by the directions of Mithradates; and although the indignant population rose against him and called the younger son of the last king to the throne, the latter was unable to offer any permanent resistance to the superior forces of Mithradates. The speedy death of the youth placed by the people on the throne gave to the Pontic king the greater liberty of action, because with that youth the Cappadocian royal house became extinct. A pseudo-Ariarathes was proclaimed as nominal regent, just as had been done in Paphlagonia; under whose name Gordius administered the kingdom as lieutenant of Mithradates.