Astrology took its place in the body of Western knowledge with the spread of astrological lore from Babylon to Greece several centuries before Christ. This transmission began with Berosus, a priest of the temple of Bel, who settled on the island of Cos, the home of Hippocratic medicine, where he established a school of astrology at the end of the fifth century bc. However, the full application of astrology to medicine called iatromathematica, was developed subsequently in Hellenistic Egypt.