al-Biruni
c. 973–1050 CEأبو الريحان البيرونيAstronomer, geographer and polymath
- Field
- Astronomy · Geography · Mathematics
- City
- Ghazni
He estimated the Earth's radius using a mountain-top measurement, wrote a careful study of India, and contributed to mathematics and astronomy.
Renowned for his rigour and his respect for evidence.
Prepared from standard sources; pending scholar review.