Ulugh Beg was a Timurid Sultan(1447-1449) and a scientist. He was born in 1394 AD in Sultaniyeh, Zanjan Province Iran. Ulugh Beg was the grandson of the great conqueror Ameer Timur (Tamerlane).Ulugh Beg's father Shahrukh was the son of Timur. Ulugh Beg was a Sultan, mathematician and astronomer. He also had interests in art, poetry, history and studying Quran. Ulugh Beg in 1417 AD to push forward the study of astronomy began building a madrassah(University/Institute) which was completed in 1420. In 1428, Ulugh Beg built the grand circular Ulugh Beg Observatory in Samarkand, Uzbekistan. Ulugh Beg corrected many errors made by Ptolemy and updated his work. In 1430's Ulugh Beg published Zij-i-Sultani(astronomical table and star catalogue) which was the most accurate and extensive of his time. In 1437, years before Copernicus's estimation, Ulugh Beg determined the length of a year with error of few seconds. He also contributed to the sine and tangent values in trigonometric tables. A crater on Moon has been named to honor Ulugh Beg by a German astronomer. Ulugh Beg died in 1449 and is buried in Gur-e-Amir Samarkand in the Mausoleum on Ameer Timur. #ulughbeg #ulughbegobservatory #timurid #sultan #mathematics #astronomy #samarkand #ulugh #ameertimur #uzbekistan #history #historia https://www.instagram.com/p/CCyF42wjfpQ/?igshid=ar4s3rwf9skr
