The Abbasid state... its rise and fall

The Abbasid state experienced its golden age during the reigns of Harun al-Rashid and his son al-Ma''mun, as the scientific movement became active and the translation of Greek, Indian, and Pahlavi science books into Arabic flourished at the hands of the Syriacs, Persians, and Romans from the people of the Abbasid state. Muslims worked to develop these sciences and invented several useful invention...