Ptolemy's Tetrabiblos,: Or Quadripartite

For over a thousand years, the Tetrabiblos held an authority in the astrological world comparable to that of a bible.

: Here, Ptolemy moves to the individual, discussing factors present at birth that determine physical appearance, temperament, and parental influence. Ptolemy's Tetrabiblos, Or Quadripartite

Ptolemy systematically organized the astrological knowledge of his time into four distinct sections: For over a thousand years, the Tetrabiblos held

: Ptolemy defends astrology as a legitimate, though less certain, science compared to astronomy. He introduces the "powers" of the planets based on physical qualities—such as heat, moisture, dryness, and cold—and describes the nature of the zodiac signs. For over a thousand years