Omar Khayyam was a Persian mathematician, astronomer, and philosopher of the 11th and 12th centuries. He is famous for his poetry, particularly his Rubaiyat, which has been translated into many languages. Some synonyms for Omar Khayyam are "Persian poet," "mathematician," "philosopher," and "astronomer." Other related words might include "Islamic scholar," "renaissance man," or "polyglot." Despite living 900 years ago, Omar Khayyam's works continue to captivate readers today, and he remains an important figure in Persian literature and intellectual history.