Ghiyath al-Din Abu al-Fath Omar ibn Ibrahim Khayyam Nishapuri, Persian poet, mathematician, and astronomer.
Notable Works
Rubaiyat, Jalali Calendar, Treatise on Algebra
Fun Facts
Khayyam's Jalali calendar (1079 CE) is more accurate than the Gregorian! He discovered the Khayyam-Pascal triangle 500 years before Pascal. His Rubaiyat, translated by Edward FitzGerald, became one of the best-selling poetry books in the West.
Related Events
Cyrus the Great - Birthday
Birthday of Cyrus the Great, founder of the Achaemenid Empire. This date coincides with the ancient Shahrivargan festival and was traditionally celebrated as Father's Day in ancient Iran. Note: This differs from Cyrus the Great Day (7 Aban - entry into Babylon).
Cyrus the Great - Start of Reign
Start of Cyrus the Great's reign over Persia and then Media, the epoch of the Imperial Persian calendar.
Nader Shah - Birthday
Nader Shah Afshar, founder of the Afsharid dynasty and the greatest military conqueror of Persia after Islam. He defeated the Mughal Empire and brought the Peacock Throne to Iran.
Reza Shah Pahlavi - Birthday
Reza Shah Pahlavi, founder of the Pahlavi dynasty and father of modern Iran. He rescued Iran from chaos and led the country toward modernization.