  In the foregoing discussion, we have seen that Umar Khayyam was a philosopher-sage (ḥakīm) and a spiritual-pragmatist whose Rubā‘iyyāt should be seen as a philosophical commentary on the human condition. The salient features of Umar Khayyam’s pioneering work in various branches of mathematics were also discussed. Khayyam’s mathematical genius not only produced the most accurate calendar to date, but the issues he treated remained pertinent up until the modern period. 