around the time of the First Crusade.

As a mathematician, Omar Khayyam was the first to provide a general solution for all third-degree polynomials by using the intersection of two conic sections, a method often later attributed to Descartes. Unlike Descartes, Khayyam performed these geometric calculations by selecting a unit length while strictly adhering to the rule of homogeneity. Additionally, in his work On the Division