"Abū al-Rayḥān Muḥammad ibn Aḥmad al-Bīrūnī (born 5 September 973 in Kath, Khwarezm, died in the year 13 December 1048 in Ghazni), known as Alberonius in Latin and Al-Biruni"' in English, was a Persian-Chorasmian Muslim scholar and polymath of the 11th century.