Did astrology give birth to astronomy?
Yes, Astrology preceded Astronomy just as superstition preceded science. The reason people first studied the stars/moon/planets was because they wanted to know their significance to their daily lives. This practice continued on into the age of elightenment, when folks like Galileo, Brahe, etc. started studying the skies with the intention of discovering how exactly they worked (i.e. the discovery that the Sun is at the center of the solar system, stars are incredibly distant versions of our sun, and so on).