Al-Biruni

Biography

Abu Rayhan Muhammad ibn Ahmad al-Biruni (c. 973–1048 CE), an Iranian scholar from Khwarazm, was one of the greatest polymaths of the Islamic and medieval worlds, producing enduring work in astronomy, mathematics, geography, chronology, mineralogy, history, and the study of religions. He knew Khwarazmian, Persian, Arabic, and Sanskrit, and wrote most of his works in Arabic, the scholarly language of the age. After the political upheavals of Khwarazm he joined the court of Mahmud of Ghazni and traveled to India in the wake of the Ghaznavid campaigns; the result was his Tahqiq ma li'l-Hind (the 'India'), an unrivaled and comparatively even-handed study of Hindu religion, philosophy, and science that makes him a pioneer of comparative ethnography. He measured the Earth's radius by an innovative geometric method with remarkable accuracy, determined the densities of metals and minerals, and synthesized the astronomy of his day in the Canon Mas'udicus. Al-Biruni is renowned for methodical rigor, empirical measurement, and critical skepticism toward unverified reports. A notable nuance is that his relationship with Mahmud of Ghazni is debated: some regard him in effect as a semi-captive court attendant and describe the bond as cold and coerced rather than freely patronized. He is also sometimes wrongly equated with his contemporary Ibn Sina (Avicenna), with whom he exchanged a famous scientific correspondence, though the two were distinct figures with different approaches.

Quotes & narrations

Related entities

Sources

• Encyclopaedia Iranica, "Bīrūnī, Abū Rayḥān"
• Encyclopaedia Britannica, "al-Biruni"
• D. J. Boilot, in Encyclopaedia of Islam (Brill), "al-Bīrūnī"