The victories of Mithridates in the East encouraged him to turn his arms in the opposite direction, and to make an attack on the important country of Armenia, which bordered his north-western frontier. Armenia was at the time under the government of a certain Ortoadistus, who seems to have been the predecessor, and was perhaps the father, of the great Tigranes. Ortoadistus ruled the tract called by the Romans “Armenia Magna,” which extended from the Euphrates on the west to the mouth of the Araxes on the east, and from the valley of the Kur northwards to Mount Niphates and the head streams of the Tigris towards the south. The people over which he ruled was one of the oldest in Asia and had on many occasions shown itself impatient of a conqueror. Justin, on reaching this point in his work, observes that he could not feel himself justified if, when his subject brought before him so mighty a kingdom, he did not enter at some length on its previous history. The modern historian would be even less excusable than Justin if he omitted such a review, since, while he has less right to assume a knowledge of early Armenian history on the part of his readers, he has greater means of gratifying their curiosity, owing to the recent discovery of sources of information unknown to the ancients. Armenia first comes before us in Genesis, where it is mentioned as the country on whose mountains the ark rested. A recollection of it was thenceforth retained in the semi-mythic traditions of the Babylonians. According to some, the Egyptian monarchs of the eighteenth and nineteenth dynasties carried their arms into its remote valleys, and exacted tribute from the petty chiefs who then ruled there. At any rate, it is certain that from about the ninth century B.C. it was well known to the Assyrians, who were engaged from that time till about B.C. 640 in almost constant wars with its inhabitants. At this period three principal races inhabited the country--the Nairi, who were spread from the mountains west of Lake Van along both sides of the Tigris to Bir on the Euphrates, and even further; the Urarda (Alarodii, or people of Ararat), who dwelt north and east of the Nairi, on the upper Euphrates, about the lake of Van, and probably on the Araxes; and the Minni, whose country lay south-east of the Urarda, in the Urumiyeh basin and the adjoining parts of Zagros. Of these three races, the Urarda were the most powerful, and it was with them that the Assyrians waged their most bloody wars. The capital city of the Urarda was Van, on the eastern shores of the lake; and here it was that their kings set up the most remarkable of their inscriptions. Six monarchs, who apparently all belong to one dynasty, left inscriptions in this locality commemorative of their military expeditions or of their offerings to the gods. The later names of the series can be identified with those of kings who contended with Assyrian monarchs belonging to the last, or Sargonid