This book, part of Routledge's new Science of Antiquity' series, traces the history of astrology from its beginings in Mesopotamia to the early Byzantine Empire. Barton provides a historical background to the origins of astrology, and examines its principles and practice in the Graeco-Roman world. She also explores the social world of the astrologer, the impact of Christianity, and astrology's influence on chorography, medicine, magic, and cult theology in the classical world.