Xenophon was born at Athens about B.C. 430, and died probably in 355. He was an Athenian gentleman who in his early-manhood was an intimate member of the Socratic circle. In 401 he joined the expedition of Cyrus, recorded in the "Anabasis," and did not again take up his residence in Athens. The "Anabasis" must be introduced by an historical note. In the year 404 B.C. the Peloponnesian war was brought to a close by a peace establishing the Lacedæmonian supremacy consequent upon the crowning disaster to the Athenians at Aegos Potami. In the same year the Persian king Darius Nothus died, and was succeeded on the throne by his son Artaxerxes. His younger son, Cyrus, determined to make a bid for the throne. He had personal knowledge of the immense superiority of the Greek soldiery and the Greek discipline over those of the Eastern nations. Accordingly, he planned to obtain the services of a large contingent of Greek mercenaries, who had become the more readily available since the internecine struggle between the two leading states of Hellas had been brought to an end. The term "Anabasis," or "going up," applies properly to the advance into the interior; the retreat, with which the work is mainly concerned, is the "Katabasis." The author writes his record in the third person. This epitome has been specially adapted for THE WORLD'S GREATEST BOOKS from the Greek text. _I.--The Going-up of Cyrus_ Cyrus, the younger brother of Artaxerxes the king, began his preparations for revolt by gradually gathering and equipping an army on the pretext of hostile relations between himself and another of the western satraps, Tissaphernes. Notably, he secretly furnished Clearchus, a Lacedæmonian, with means to equip a Greek force in Thrace; another like force was ready to move from Thessaly under Aristippus; while a Boeotian, Proxenus, and two others friends were commissioned to collect more mercenaries to aid in the war with Tissaphernes. Next, an excuse for marching up-country, at the head of all these forces, was found in the need of suppressing the Pisidians. He advanced from Sardis into Phrygia, where his musters were completed at Celænæ. A review was held at Tyriæum, where the Cilician queen, who had supplied funds, was badly frightened by a mock charge of the Greek contingent. When the advance had reached Tarsus, there was almost a mutiny among the Greeks, who were suspicious of the intentions of Cyrus. The diplomacy, however, of their principal general, Clearchus, the Lacedæmonian, coupled with promises of increased pay, prevailed, though it had long been obvious that Pisidia was not the objective of the expedition.