The Registan was the heart of the ancient city of Samarkand of the Timurid dynasty, now in Uzbekistan. The name Registan means "Sandy place" in Persian. The three madrasahs of the Registan are: the Ulugh Beg Madrasah (1417–1420), the Tilya-Kori Madrasah (1646–1660) and the Sher-Dor Madrasah (1619–1636). Madrasah is an Arabic term meaning school.