The basis on which the modified Greek system rests is likewise the same that we have observed in Babylonia--a correspondence between heaven and earth, but with this important difference, that instead of the caprice of the gods we have the unalterable fate controlling the entire universe--the movements of the heavens and the life of the individual alike" (Jastrow).( 19) (19) Ibid., pp.

257-258.
From this time on until the Renaissance, like a shadow, astrology follows astronomy.

Regarded as two aspects of the same subject, the one, natural astrology, the equivalent of astronomy, was concerned with the study of the heavens, the other, judicial astrology, was concerned with the casting of horoscopes, and reading in the stars the fate of the individual.
As I mentioned, Greek science in its palmy days seems to have been very free from the bad features of astrology.

Gilbert Murray remarks that "astrology fell upon the Hellenistic mind as a new disease falls upon some remote island people." But in the Greek conquest of the Roman mind, astrology took a prominent role.

It came to Rome as part of the great Hellenizing movement, and the strength of its growth may be gauged from the edicts issued against astrologers as early as the middle of the second century B.C.In his introduction to his recent edition of Book II of the Astronomicon of Manilius, Garrod traces the growth of the cult, which under the Empire had an extraordinary vogue.