Ariobarzanes was the satrap of Persis. After the defeat of the Persians near Arbêla, he fled to secure the pass called the Persian Gates, which lay on the route to Persepolis. Alexander having gained the heights above his camp, the Persians took to flight, and Ariobarzanes made his escape with a few horsemen.

Aristoboulos was a native of Kassandreia, a town on the isthmus which connects the peninsula of Pallênê with the mainland. He accompanied Alexander in his Asiatic expedition, and wrote a history of his wars, which was one of the principal sources used by Arrian in the composition of his Anabasis, and by Plutarch in his Life of Alexander. Arrian, in the preface to his great work, thus characterises the two authors whom he mainly followed: “Different authors have differed in their accounts of Alexander’s life.... But I consider the narratives of Ptolemy and Aristoboulos to be more worthy of credit than the rest; Aristoboulos, because he attended Alexander in his expedition; and Ptolemy, not only for that reason, but also because he was afterwards himself a king, and for one in his position to have falsified facts would have been more disgraceful than for a man of humbler rank. Both of them, moreover, compiled their histories after Alexander was dead, when they were neither compelled, nor tempted by hope of reward, to misrepresent facts, and on this account they are the more worthy of credit.” Lucian, nevertheless, accuses Aristoboulos of having invented marvellous stories of Alexander’s prowess in battle; but it is thought that in the anecdote which he relates in this connection he has used by mistake the name of Aristoboulos for that of Onesikritos. See Lucian’s How History should be Written, c. 12. It is said that Aristoboulos began the composition of his history when he was 84 years old, and that he lived to be 90.

Aristonous was, like Alexander, a native of Pella, and was one of the seven or eight chief officers who formed his body-guard, and had at all times access to his presence. According to Curtius he was one of the men who helped to save Alexander’s life when he was assailed and wounded by the Mallians in their chief stronghold. On the death of Alexander he advocated the claims of Perdikkas to the supremacy. After the fall of Olympias, to whose cause he had attached himself, he was put to death by order of her antagonist, Kassander, in the year 316 B.C.

Aristotle was born in 384 B.C. at Stageira, a seaport town near the isthmus which connects the peninsula terminating in Mount Athos with the mainland of Macedonia. When he was studying philosophy in Athens under Plato he received a letter from King Philip announcing the birth of his son Alexander. This letter has been preserved by Aulus Gellius in his Noctes Atticae (ix. 3):—“Philip to Aristotle greeting: know that a son has been born to me. I thank the gods, not so much for his birth, as that it has been his fortune to be born when you are in the prime of life; for I hope that being instructed and educated by you, he will prove himself worthy both of us and of the succession to so great a state.” Thirteen years afterwards Philip summoned the great philosopher to his court, and entrusted him with the education of his son, which was conducted in quiet seclusion at Stageira, at a distance from Pella, the centre of political activity and court intrigue. Here Alexander remained for four years, at the end of which he was called to govern the kingdom during his father’s temporary absence on an expedition against Byzantium. Along with him were educated other noble youths, Kassander, son of Antipater; Marsyas of Pella; Kallisthenes, who was related to Aristotle; Theophrastos, and probably also Nearchos, Ptolemy, and Harpalos. The course of instruction embraced poetry, eloquence, and philosophy, and, no doubt, also politics, though one of the leading aims of Alexander in after life, that of uniting all the nations under his sway into one kingdom without due regard to their individual peculiarities, was opposed to the views of his master. Alexander regarded Aristotle with sentiments of the deepest respect and affection, and rewarded him for his instructions with a munificence which has never been surpassed. Pliny mentions how liberally he supported the philosopher in his researches into natural science, especially in the department of zoology, ordering his vicegerents everywhere to supply him with specimens of all kinds of animals. Unhappily the cordiality between them was interrupted when Kallisthenes began to express disapproval of the change in Alexander’s conduct and policy. Aristotle died at the age of 63, about a year after the death of his pupil.

Arsakês was the ruler of a small mountain kingdom which adjoined that of his brother Abisares, King of Kâśmîr.

Artabazos was a Persian satrap, who for some years maintained a war of rebellion against Artaxerxes III. In the reign of Darius he distinguished himself by his fidelity to his sovereign. He took part in the battle of Gaugamela, and afterwards accompanied Darius in his flight. Alexander, who approved of his fidelity to his master, rewarded him with the satrapy of Baktria. Ptolemy married one of his daughters and Eumenes another. He resigned his satrapy on account of his great age, and was succeeded by Kleitos.

Artemidoros was a Greek geographer who lived about 100 B.C. His work on geography was abridged by Markianos. Some fragments of the work, which was of high value, and of the abridgment, have been preserved by Strabo and other writers.

Asklêpios (Aesculapius) was the god of the medical art. His descendants were called Asklepiadai, and had their principal seats at Kôs and Knidos. The Asklepiads were not only a fraternity of physicians, but an order of priests, who combined religion with the practice of their art.

Aśôka was the son of Vindusâra and grandson of Chandragupta, called Sandrokottos by the Greeks. He ascended the throne of Magadha in 270 B.C. Having been converted to Buddhism, he established that faith as the state religion of his vast empire, which comprised the greater part of India. He was zealous in promoting the spread of his creed, and even sent missionaries to expound its doctrines to the sovereigns of the West, Antiochos of Syria, Ptolemy of Egypt, Antigonos of Macedonia, Magas of Kyrênê and Alexander of Epiros. His religious zeal, piety, and benevolence inspire all the many edicts he promulgated, which are still to be read cut on rocks, caves, and pillars. The date of his death is uncertain, but is referred to the year 222 B.C. His inscriptions are invaluable for the aid they contribute towards the solution of some of the most important and difficult problems with which the investigators of Indian antiquity have to deal. They throw light on many points of historical, chronological, and linguistic inquiry, as well as on others having reference to the social, political, and religious condition of the Indian people in the days when Buddhism first rose to the ascendant. An account of these inscriptions will be found in Lassen’s Alt. Ind. ii. pp. 215-223.

Assagetes was, Lassen thinks, an Assakênian chief. His name probably transliterates Aśvajit; according to the same authority the word would mean “conquered by the horse.”