Mirzo Ulugbek

Who is Mirzo Ulugbek?

Mirzo Ulugbek was a grandson of Amir Temur who ruled the Timurid Empire from Samarkand and became one of the greatest astronomers of the medieval world. More interested in science than conquest, he built the great Ulugbek Observatory at Samarkand in the 1420s, a vast three-story instrument used to chart the positions of stars and planets with remarkable precision for its era. His resulting star catalogue, the Zij-i-Sultani, recorded the positions of over a thousand stars and remained one of the most accurate astronomical works produced anywhere until the invention of the telescope. He also founded madrasas in Samarkand, Bukhara, and Gijduvan that became major centers of learning in mathematics, astronomy, and theology, attracting scholars from across the Islamic world. His reign ended in tragedy when he was overthrown and assassinated in 1449, allegedly on the order of his own son, but his scientific legacy endured for centuries and profoundly influenced later astronomers in both the Islamic world and Europe.

Sources: UNESCO World Heritage listing, Ulugh Beg Observatory, Samarkand · S. Frederick Starr, Lost Enlightenment: Central Asia's Golden Age (Princeton University Press, 2013) · Encyclopaedia Britannica, "Ulugh Beg"