During the Golden Age of Islam from 750-1350, there were many advances in science, technology, and culture. Islam expanded across North Africa and Spain, with major cities including Damascus, Alexandria, and Cordoba. Under the Abbasid Dynasty from 750-900, the capital of Baghdad exceeded Constantinople in size and wealth. Muslim civilization flourished due to factors such as religious zeal, unifying Arab tribes, and allowing religious freedom. Significant advances were made in fields such as mathematics, astronomy, medicine, architecture, art, and the development of the scientific method.