The principles of these studies were rooted in Arabian, Persian, Babylonian, Hellenistic and Indian traditions and both were developed by the Arabs following their establishment of a magnificent observatory and library of astronomical and astrological texts at Baghdad in the 8th century.
Prinsip-prinsip dari pembelajaran tersebut berakar dari tradisi Arabia, Persia, Babilonia, Hellenistik dan India dan keduanya sama-sama dikembangkan oleh bangsa Arab setelah mereka mendirikan observatorium megah dan perpustakaan teks-teks astronomi dan astrologi di Baghdad pada abad ke-8.