Omar Khayyám (1048 - 1131)

Ghiyāth ad-Dīn Abu'l-Fatḥ ʿUmar ibn Ibrāhīm al-Khayyām Nīshāpūrī (18 May 1048 – 4 December 1131; Persian: ‏غیاث ‌الدین ابوالفتح عمر ابراهیم خیام نیشابورﻯ‎, pronounced [xæˈjːɒ:m]) was a Persian polymath, philosopher, mathematician, astronomer and poet. He also wrote treatises on mechanics, geography, mineralogy, music, and Islamic theology.