Umar Khayyam was part of:

Umar Khayyam was a renowned Persian mathematician astronomer and poet who lived during the Saljuq dynasty’s rule. The phrase “was part of” is a past tense linking verb phrase indicating belonging to a historical era. Alternatives could be “belonged to” “lived in” or “flourished during.” His association with the Saljuques period is important because this era fostered advances in science philosophy and literature. Khayyam’s Rubaiyat gained lasting fame blending philosophical reflection with lyrical beauty. Knowing his historical context helps readers understand the intellectual climate that shaped his works.