Astrology consists of a number of belief systems which hold that there is a relationship between astronomical phenomena and events in the human world. In the West, astrology most often consists of a system of horoscopes that claim to predict aspects of an individual's personality or life history based on the positions of the sun, moon, and other planetary objects at the time of their birth. Many cultures have attached importance to astronomical events, and the Indians, Chinese, and Mayans developed elaborate systems for predicting terrestrial events from celestial observations.
Among Indo-European peoples, astrology has been dated to the third millennium BCE, with roots in calendrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications.Through most of its history, astrology was considered a scholarly tradition. It was accepted in political and academic contexts, and its concepts were built into other studies, such as astronomy, alchemy, meteorology, and medicine. At the end of the 17th century, new scientific concepts in astronomy (such as heliocentrism) began to damage the credibility of astrology, and subsequent controlled studies failed to confirm its predictive value. Astrology thus lost its academic and theoretical standing. Astrology saw a popular revival in the 19th and 20th centuries as part of a general revival of spiritualism and later New Age philosophy, and through the influence of mass media such as newspaper horoscopes.
While astrology may bear a superficial resemblance to science, it is a pseudoscience because it makes little attempt to develop solutions to its problems, shows no concern for the evaluation of competing theories, and is selective in considering confirmations and dis-confirmations.
source:http://en.wikipedia.org/wiki/Astrology
