Now it's very easy to assume that those books, because they were from a library called Bait al-Hikma, were Muslim books, but that's not the case because the caliph that built that library, his name was al-Ma'mun -- he was Harun al-Rashid's son.
Nun ist es einfach anzunehmen, dass die Bücher, da sie aus einer Bibliothek namens al-Hikma stammen, muslimische Bücher sind, jedoch ist dies nicht der Fall, da der Kalif,der diese Bibliothek baute, al-Ma'mum hieß; er war Harun al-Rashids Sohn.