Khiva (Uzbek: Xiva/Хива, خىۋا; Persian: خیوه, Xīveh; alternative or historical names include Khorasam, Khoresm, Khwarezm, Khwarizm, Khwarazm, Chorezm, and Persian: خوارزم) is a city of approximately 50,000 people located in Xorazm Region, Uzbekistan. According to archaeological data, the city was established in the beginning of the Christian era. It is the former capital of Khwarezmia and the Khanate of Khiva. Itchan Kala in Khiva was the first site in Uzbekistan to be inscribed in the World Heritage List (1991). The world renowned astronomer, historian and polymath, Al-Biruni (973-1048CE) was among several Muslim scholars born here.