Person
Omar Khayyam
Omar Khayyam was a Persian mathematician, astronomer and poet of the eleventh and early twelfth centuries. He worked under the patronage of the Seljuk sultan Malik Shah and took part in reforming the solar calendar with great astronomical precision. He is best known internationally for the quatrains, or rubaiyat, attributed to him.

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- APA
- The Epoch Institute. (2026). Omar Khayyam. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/omar-khayyam
- MLA
- “Omar Khayyam.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/omar-khayyam. Accessed .
- Chicago
- The Epoch Institute. “Omar Khayyam.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/omar-khayyam.
- Harvard
- The Epoch Institute (2026) ‘Omar Khayyam’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/omar-khayyam (Accessed: ).
Last reviewed October 2026Random entry ↻