Astrology is the study of how the positions and movements of celestial objects may affect human life on earth. Though this is an ancient practice, historians are not quick to ascribe its origins to any one culture. The earliest records date back around 3500 years ago, when Chaldean astronomers theorized about the sun and moon's influence over our lives. More than 2,500 years ago the Babylonians divided the sky into constellations that we still use today. And on it goes — every era adds new levels of complexity or nuance, but never a complete departure from basic principles first laid down in Antiquity postulated by these Ancient astrologers.