Artaxias is regarded as one of the most important kings in Armenian history. He presented himself as a legitimate descendant of Orontids, although it is unknown if he was in fact related to that dynasty. In the beginning of his rule, parts of the Armenian Highlands with Armenian speaking populations remained under the rule of neighbouring states. Artaxias made the reunification of those lands under his domain a priority. Greek geographer and historian Strabo recounts the conquests of Artaxias towards West, East, North and South as well as stating that the population of those territories was Armenian speaking. Strabo, Geography, book 11, chapter 14:

According to report, Armenia, though a small country in earlier times, was enlarged by Artaxias and Zariadris, who formerly were generals of Antiochus the Great, but later, after his defeat, reigned as kings (the former as king of Sophene, Acisene, Odomantis, and certain other countries, and the latter as king of the country round Artaxata), and jointly enlarged their kingdoms by cutting off for themselves parts of the surrounding nations,–I mean by cutting off Caspiane and Phaunitis and Basoropeda from the country of the Medes; and the country along the side of Mt. Paryadres and Chorsene and Gogarene, which last is on the far side of the Cyrus River, from that of the Iberians; and Carenitis and Xerxene, which border on Lesser Armenia or else are parts of it, from that of the Chalybians and the Mosynoeci; and Acilisene and the country round the Antitaurus from that of the Cataonians; and Taronitis from that of the Syrians; and therefore they all speak the same language. history of armenia

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