Astrology (from Greek: ast, ast (aster, astrós), "star", and (logos, logou),"word" or "speech") is a group of systems, traditions, and beliefs in which knowledge of the relative positions of celestial bodies and related details is held to be useful in understanding, interpreting, and organizing information about personality, human affairs, and other terrestrial matters.
A practitioner of astrology is called an astrologer, or, less often, an astrologist. Numerous traditions and applications employing astrological concepts have arisen since its earliest recorded beginnings in the 2nd millennium BCE.
It has played a role in the shaping of culture, early astronomy, and other disciplines throughout history.
Historically, astrology and astronomy were often indistinguishable, with the desire for predictive and divinatory knowledge one of the primary motivating factors for astronomical observation.
Astronomy began to diverge from astrology after a long period of gradual separation in the 18th century, and has since distinguished itself as the scientific study of astronomical objects and phenomena, placing no significance on these phenomena's supposed astrological correlation.
Indian astrology also differs considerably from the Chinese horoscope which is based on the year of birth and believes that the year of birth indicates a certain phase or aspect of sixty year circle of time.
Therefore you may find yourself born in the year of dog, horse or rat or even a dragon.