[178] This was the great doctrine of astrology, the forerunner of the science of astronomy. Astrology seems to have arisen first among the Chaldeans, out of the fundamental principle of their religion—the assimilation of the divine nature to light. This tenet introduced another, the worship of the stars, which was developed into astrology. Others suppose astrology to have been of Arabian or Egyptian origin. From some of these sources it reached the Greeks, and through them the Romans, who held the astrologic art in high repute. The art, after having become almost extinct, was revived by the Arabians at the verve of the middle ages. For the history of astrology one must consult the writings of Manilius, Julius Firmicus, and Ptolemy. Its greatest mediæval apologist is Cardan, the famous physician of Pavia (see his work, De Astron. Judic., lib. vi.-ix. tom. v. of his collected works).

[179] Sextus adds, "bright-eyed."

[180] Hippolytus here follows Sextus.

[181] Aratus, from whom Hippolytus quotes so frequently in this chapter, was a poet and astronomer of antiquity, born at Soli in Cilicia. He afterwards became physician to Gonatus, son of Demetrius Poliorcetes, king of Macedon, at whose court he rose high into favour. The work alluded to by Hippolytus is Aratus' Phænomena,—a versified account of the motions of the stars, and of sidereal influence over men. This work seems to have been a great favourite with scholars, if we are to judge from the many excellent annotated editions of it that have appeared. Two of these deserve notice, viz., Grotius' Leyden edition, 1600, in Greek and Latin; and Buhle's edition, Leipsic, 1803. See also Dionysius Petavius' Uranologion. Aratus must always be famous, from the fact that St. Paul (Acts xiii. 28) quotes the fifth line of the Phænomena. Cicero considered Aratus a noble poet, and translated the Phænomena into Latin, a fragment of which has been preserved, and is in Grotius' edition. Aratus has been translated into English verse, with notes by Dr. Lamb, Dean of Bristol (London: J. W. Parker, 1858).