=52.= Ptolemy followed the liberal policy of Alexander toward men of genius and learning. He collected a vast and precious library, which he placed in a building connected with the palace; and he founded the “Museum,” which drew students and professors from all parts of the world. No spot ever witnessed more literary and intellectual activity than Alexandria, the University of the East. There Euclid first unfolded the “Elements of Geometry”; Eratos´thenes discoursed of Geography; Hipparchus, of Astronomy; Aristoph´anes and Aristar´chus, of Criticism; Man´etho, of History; while Apel´les and Antiph´ilus added their paintings, and Phile´tas, Callim´achus, and Apollonius their poems, for the delight of a court whose monarch was himself an author, and in which talent constituted rank. Alexandria during this reign was adorned with many costly and magnificent works. The royal palace; the Museum; the great light-house on the island of Pharos, which has given its name to many similar constructions in modern times; the mole or causeway which connected this island with the mainland; the Hip´podrome, and the Mausole´um, containing the tomb of Alexander, were among the chief. Ptolemy Soter was distinguished by his truth and magnanimity from most of the princes and generals of his age. His unlimited power never led him to cruelty or self-indulgence. He died at the age of eighty-four, B. C. 283. =53.= Ptolemy II. (Philadelphus), through the influence of his mother, had been raised to the throne two years before his father’s death, instead of his elder brother, Ceraunus. He had been carefully educated by several of the learned men whom the patronage of his father had drawn to the court; and he continued, on a still more liberal scale, that encouragement of science and literature which had already made Alexandria a successful rival of Athens. He so greatly increased the Alexandrian Library that he is often mentioned as its founder. Agents were appointed to search Europe and Asia for every literary work of value, and to secure it at any cost. An embassy was sent to the high priest at Jerusalem to bring a copy of the Holy Scriptures, together with a company of learned men who could translate them into Greek. The translators were entertained by the king with the greatest honor. The first five books were completed in the reign of Philadelphus, the rest were translated by order of the later Ptolemies; and the entire version—still an invaluable treasure to Biblical scholars—is known as the Sep´tuagint, either from the seventy translators, or because it was authorized by the San´hedrim of Alexandria, which consisted of the same number.