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.
और ये सोचना बडा आसान है कि क्योंकि वो किताबें अल-हिक्मा पुस्तकालय से थी, तो इस्लामिक होंगी मगर ऐसा नहीं है क्योंकि जिस खलीफ़ा ने उसे बनवाया था, उसका नाम था अल-मामून -- वो हारुन अल-रशीद का बेटा था।