CONQUESTS OF MITHRIDATES

A1bout 171 B.C. Phraates died and left the crown not to his sons but to his brother Mithridates, a prince of remarkable capacity, who made Parthia the ruling power in Iran. His first conquests, it would seem, were made at the expense of Bactria.

2The kingdom of Bactria had made vast advances under Euthydemus, whose son Demetrius crossed the Indian Caucasus and began the Indian conquests, which soon carried the Greeks far beyond the farthest point of Alexander. The object, it is plain, was to reach the sea and get a share in the trade of the world; and it is possible that the extension of the power of the Bactrian Greeks over Chinese Tatary as far as the Seres and Phaunians had a similar object--to protect the trade-route with China. For the Seres are the Chinese, and the Phauni, according to Pliny, lay west of the Attacori (the mythical people at the sources of the Hwangho). They occupied, therefore, the very region which, according to Chinese sources, was then held by a nomadic pastoral people, the Tibetan No-kiang.

3Demetrius, having succeeded his father, was displaced in Bactria by the able usurper Eucratides, sometime between 181 and 171 B.C. A thousand cities obeyed Eucratides, and both he and his rival Demetrius sought to extend the Greek settlements. Now Justin tells us that the Bactrians were so exhausted by wars that they at length fell an easy prey to the weaker Parthians; but Eucratides he describes as a valiant prince, who once with three hundred men held out during five months, though besieged by sixty thousand men of Demetrius, king of India; and then, receiving succours, subdued India.

4This implies that besides the kingdom of Bactria and that of Demetrius (the latter now confined to India and probably to the lands east of the Indus) there were independent states in various districts still Seleucid in 206 B.C. Justin’s statement is confirmed by the coins, which also show that Eucratides came forth as victor from a series of wars with the lesser states. Sogdiana, according to Chinese authorities, was occupied by the Scythians in the life-time of Eucratides.

5[Sidenote: [155-138 B.C.]]

6On his way back from India Eucratides was murdered by his son and co-regent, probably Heliocles [_ca._ 155 B.C.]. The date of this murder may be fixed by that of Demetrius, who must have been born not later than 224 B.C., and may be taken to have lost his kingdom not later than 159 B.C. Eucratides cannot, according to Justin’s account, have lived many years longer.

7In the midst of the civil wars, which became more serious after the death of Eucratides, Mithridates of Parthia began to extend his dominions at the expense of Bactria: even in the life-time of Eucratides he succeeded in annexing two satrapies. Another account makes Mithridates rule as far as India, and declares him to have obtained without war the old kingdom of Porus, or the rule over all nations between the Indus and the Hydaspes. The two accounts are reconciled by Chinese records, which tell that, about 161 B.C., the nomad people Sse broke into the valley of the Cophen and founded a kingdom in the very place of the Parthian conquests in India, which must therefore have been ephemeral.

8This fact has its importance, as illustrating the way in which the internal wars of the east Iranian Greeks helped to prepare the ground for the Scythian invasion. After this success in the east Mithridates turned his attention to the west, where the chances of success were not less inviting. Demetrius had at length fallen before a coalition of the neighbouring sovereigns, powerfully supported by the Romans through their instrument, the exile Heraclides. A pretender, Alexander, in 145 B.C., was utterly defeated by Ptolemy, and slain in his flight by an Arab chieftain. Demetrius (II) Nicator, however, soon made himself bitterly hated, and five years of fighting drove him out of the greater part of Syria.