Abū'l-Fath Ghiyāth al-Dīn ‘Umar ibn Ibrāhīm al-Khayyāmī al-Nīshāpūrī (born in Nīshāpūr, Khurāsān, 18 May 1048 - died in Nīshāpūr, circa 1123), known as Al-Khayyām was one of the greatest mathematicians and astronomers of the Islamic scientific tradition, and a great poet, author of the famous philosophical quatrains (rubā'īyāt).
Abū'l-Fath Ghiyāth al-Dīn ‘Umar ibn Ibrāhīm al-Khayyāmī al-Nīshāpūrī
غياث الدين أبو الفتوح عمر بن إبراهيم الخيام النيسابوري
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