Ulugh Beg

High Quality Content by WIKIPEDIA articles! Ulugh Bek (Persian: میرزا محمد طارق بن شاہرخ الغ]بیگ - Mīrzā Muhammad Tāraghay bin Shāhrukh Uluġ Bek) (22 March 1394 in Sultaniyeh (Persia) - October 27, 1449 (Samarkand)) was a Timurid ruler as well as an astronomer, mathematician and sultan. His commonly-known name is not truly a personal name, but rather a moniker, which can be loosely translated as Great Ruler or Patriarch Ruler and was the Turkic equivalent of Timur's Perso-Arabic title Amīr-e Kabīr. His real name was Mīrzā Mohammad Tāraghay bin Shāhrokh. Ulugh Beg was also notable for his work in astronomy-related mathematics, such as trigonometry and spherical geometry. He built the great observatory in Samarkand between 1424 and 1429.