Abū al-Rayhān Muhammad ibn Ahmad al-Bīrūnī (Chorasmian/Persian: ابوریحان بیرونی‎‎ Abū Rayḥān Bērōnī; New Persian: Abū Rayḥān Bīrūnī) (4/5 September 973 – 13 December 1048), known as Al-Biruni (Arabic: البيروني‎) in English, was a Persian scholar and Polymath from the Khwarezm region.Al-Biruni is regarded as one of the greatest scholars of the medieval Islamic era and was well versed in physics, mathematics, astronomy, and natural sciences, and also distinguished himself as a historian, chronologist and linguist.