About the book: 1971 / Fifteen-year-old Muhammad-Taragay became the ruler of Samarkand, and after the death of his father Shahrukh became the head of the Timurid dynasty. Ulugbek ruled Samarkand for forty years; rarely fought, did not impose excessive taxes on the people. He cared about the prosperity of crafts and trade, and loved poetry. But this enlightened and humane ruler entered world history as a great astronomer and mathematician. This story is about him.