Islam was greatly impacted by the cultures it encountered as it spread into the vast, newly conquered territories of dar al- Islam. Islam is a religion that originated in Arabia and spread throughout the world. It was impacted by other cultures including Persia, India, and Greece. Islam was influenced in many aspects of culture, including government, literature, math, philosophy, astronomy, and medicine. Persia, India, and Greece influenced Islam as it expanded throughout the world. Islam was influenced by Persian government and literature. Government techniques from Persia were an important part of the organization of the Umayyad and Abbasid governments. Caliphs adopted Persian views of kings as wise but absolute rulers. Also, Persian was