Al-Biruni (Abu Rayhan al-Biruni)
Sciences & Discovery • Historical Archive • 🇺🇿 Uzbekistan • 7 views

Al-Biruni (Abu Rayhan al-Biruni) 🇺🇿

أبو الريحان محمد بن أحمد البيروني (Known as "The Universal Scholar of the Islamic Golden Age")
Polymath, Geodesist, Indologist, Anthropologist, Astronomer
Born 4 September 973 🇺🇿 Kath (Khwarazm, Beruniy), Uzbekistan
Passed Away 9 December 1048 Ghazna, Afghanistan
Lifespan 75 years old
7 views
Notice / Correction
"I have translated from Sanskrit into Arabic the works of Indian sages, seeking only to place the facts before the seeker of truth, without prejudice."

Archival Overview

Universal polymath who calculated the Earth's radius to within 1% using mountain trigonometry, founded comparative Indology, and pioneered anthropology and mineral density tables.

Biographical Record

Abu Rayhan al-Biruni (973–1048 CE) was one of the greatest scientists and scholars in history, fluent in Arabic, Persian, Sanskrit, Greek, Hebrew, and Syriac. Serving at the royal court of Sultan Mahmud of Ghazna, he accompanied military expeditions to the Indian subcontinent, conducting unprecedented sociological and scientific field research.

His masterpiece Kitab al-Hind founded the discipline of Indology, offering a profound, objective study of Indian religion, philosophy, and mathematics. At Nandana Fort in Punjab, he invented an ingenious trigonometric method measuring the dip angle of the horizon from a mountain summit, calculating the radius of the Earth as 6,335.7 km (within 1% of the modern value: 6,371 km).

Key Life Milestones

1023 CE

Trigonometric Measurement of Earth's Radius

Calculated the radius of the Earth from the summit of Mount Nandana using a single horizon-dip trigonometric equation.

1030 CE

Publication of 'Kitab al-Hind' (Indology)

Completed his monumental encyclopedic analysis of Indian civilization, calendar systems, and philosophy.

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Final Resting Place

Perpetual Memorial
Ghazni Royal Scholars Mausoleum
Ghazni, Afghanistan
GPS: 33.5489, 68.4217
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