The religious sciences emerged early in Islamic history as a way of understanding and interpreting the revelation and systematizing and authenticating the sayings and actions of the Prophet. Products of Islamic civilization will often be referred as Islamic to indicate a shared intellectual heritage. From the tenth century until modern times, diverse regional centers emerged with their own distinctive intellectual and cultural styles. The Islamic appropriation of Hellenistic natural philosophy, mathematical sciences, medicine, and philosophical teachings is one of the remarkable events in the history of learning. As one of the most important intellectual movements in human history, the translation movement in Islam resulted from the coincidence of a number of factors. Of fundamental significance was the new urban, multicultural, multireligious, and multilingual milieu of Baghdad. The natural philosophy tradition in Islam was part of a larger tradition of philosophy.