Astrology studies the alignment of the planets and stars and how it affects humans and their life. Astrology gives insight into your personality, mood, behavior, environment and relationship. Most of the zodiac history is based on Chinese calendar, which is derived from the Chinese astrology and ancient Chinese religion. Babylonians also develop their own version of horoscopes. A few centuries later Eastern Mediterranean civilizations developed a keen interest in astrology and it became very popular in Egyptian and Greek Kingdom.