Al-Biruni was born in 973 CE in Khwarizm (modern-day Uzbekistan), an eminent polymath educated in astronomy, mathematics, medicine, and philosophy:
- In 1017, Sultan Mahmud of Ghazni invaded Khwarizm and brought Al-Biruni to his capital Ghazni. When Mahmud invaded northwestern India, Al-Biruni spent years in the Punjab, learning Sanskrit, reading the Vedas, Upanishads, and Patanjali's Yogasutras.
- The Kitab-ul-Hind (Written in Arabic): An encyclopedic masterwork of 80 chapters covering Indian religion, philosophy, astronomy, alchemy, caste rules, weights, and legal systems. It follows a rigorous geometric structure: starting with a question, following with a Sanskrit-based analysis, and concluding with a comparison with Greek and Persian cultures.
Al-Biruni's "Three Barriers" to Understanding India:
- The Sanskrit Language: Sanskrit was so grammatically complex and vast in vocabulary that ideas could not easily be translated into Arabic or Persian.
- Religious & Philosophical Isolation: Deep divergence in religious dogmas, beliefs, and practices.
- Insularity and Pride of the Brahmins: The self-absorption and intellectual isolation of native Brahmins, who believed no other nation possessed knowledge equal to theirs.
Al-Biruni's Critique of the Caste System:
While Al-Biruni documented the four Varnas, he rejected the Brahmanical notion of hereditary ritual pollution. He stated that according to the universal law of nature, "everything that becomes impure strives to regain its pristine state of purity" (the sun cleanses air, salt purifies the sea). He argued that if ritual pollution were permanent, biological human survival would be impossible!