Ptolemy, the son of Lagus, or Ptolemy Soter (the Preserver), was king of Egypt from 323–285 (283) b.c. The following story in regard to the origin of the LXX is first told in a spurious letter (probably dating from the first century b.c.), which professes to have been written by Aristeas, a high officer at the court of Ptolemy Philadelphus (285 [283]-247 b.c.). This epistle puts the origin of the LXX in the reign of the latter monarch instead of in that of his father, Ptolemy Soter, and is followed in this by Philo, Josephus, Tertullian, and most of the other ancient writers (Justin Martyr calls the king simply Ptolemy, while Clement of Alex. says that some connect the event with the one monarch, others with the other). The account given in the letter (which is printed by Gallandius, Bibl. Patr. II. 771, as well as in many other editions) is repeated over and over again, with greater or less variations, by early Jewish and Christian writers (e.g. by Philo, Vit. Mos. 2; by Josephus, Ant. XII. 2; by Justin Martyr, Apol. I. 31; by Clement of Alexandria, Strom. I. 22; by Tertullian, Apol. 18, and others; see the article Aristeas in Smith’s Dict. of Greek and Roman Biog.). It gives the number of the elders as seventy-two,—six from each tribe. That this marvelous tale is a fiction is clear enough, but whether it is based upon a groundwork of fact is disputed (see Schürer, Gesch. der Juden im Zeitalter Jesu Christi, II. p. 697 sqq.). It is at any rate certain that the Pentateuch (the original account applies only to the Pentateuch, but later it was extended to the entire Old Testament) was translated into Greek in Alexandria as early as the third century b.c.; whether under Ptolemy Philadelphus, and at his desire, we cannot tell. The translation of the remainder of the Old Testament followed during the second century b.c., the books being translated at various times by unknown authors, but all or most of them probably in Egypt (see Schürer, ibid.). It was, of course, to the interest of the Christians to maintain the miraculous origin of the LXX, for otherwise they would have to yield to the attacks of the Jews, who often taunted them with having only a translation of the Scriptures. Accepting the miraculous origin of the LXX, the Christians, on the other hand, could accuse the Jews of falsifying their Hebrew copies wherever they differed from the LXX, making the latter the only authoritative standard (cf. Justin Martyr’s Dial. chap. 71, and many other passages in the work). Upon the attitude of the Christians, and the earlier and later attitude of the Jews toward the LXX, see below, Bk. VI. chap. 16, note 8.