Abu Raihan Mohammad Ibn Ahmad Biruni

Abu Raihan Mohammad Ibn Ahmad Biruni was one of the well-known figures associated with the court of King Mahmoud Ghaznavid, who was one of the famous Muslim kings of the 11th century A.D. Biruni was a versatile scholar and scientist who had equal facility in physics, metaphysics, mathematics, geography and history. Born in the city of Kheva near "Ural" (then was a part of Iran) in 973 A.D., he was a contemporary of the well-known physician Ibn Sina. At an early age, the fame of his scholarship went around and when Sultan Mahmood Ghaznawi conquered his homeland, he took Biruni along with him in his journeys to India several times and thus he had the opportunity to travel all over India during a period of 20 years. He learnt Hindu philosophy, mathematics, geography and religion from thre Pandits to whom he taught Greek and Arabic science and philosophy. He died in 1048 A.D. at the age of 75, after having spent 40 years in thus gathering knowledge and making his own original contributions to it. 

Abu Raihan Mohammad Ibn Ahmad Biruni was one of the well-known figures associated with the court of King Mahmoud Ghaznavid, who was one of the famous Muslim kings of the 11th century A.D. Biruni was a versatile scholar and scientist who had equal facility in physics, metaphysics, mathematics, geography and history. Born in the city of Kheva near "Ural" (then was a part of Iran) in 973 A.D., he was a contemporary of the well-known physician Ibn Sina. At an early age, the fame of his scholarship went around and when Sultan Mahmood Ghaznawi conquered his homeland, he took Biruni along with him in his journeys to India several times and thus he had the opportunity to travel all over India during a period of 20 years. He learnt Hindu philosophy, mathematics, geography and religion from thre Pandits to whom he taught Greek and Arabic science and philosophy. He died in 1048 A.D. at the age of 75, after having spent 40 years in thus gathering knowledge and making his own original contributions to it. 

On his return from India, Biruni wrote his famous book Qanun-i Masoodi (al-Qanun al-Masudi, fi al-Hai'a wa al-Nujum), which he dedicated to Sultan Masood. The book discusses several theorems of astronomy, trigonometry, solar, lunar, and planetary motions and relative topics. In another well-known book al-Athar al-Baqia, he has attempted a connected account of ancient history of nations and the related geographical knowledge. In this book, he has discussed the rotation of the earth and has given correct values of latitudes and longitudes of various places. He has also made considerable contribution to several aspects of physical and economic geography in this book. 

He wrote a number of books and treatises. Apart from Kitab-al- Hind (History and Geography of India), al-Qanun al-Masudi (Astronomy, Trigonometry), al-Athar al-Baqia (Ancient History and Geography), Kitab al-Saidana (Materia Medica) and Kitab al-Jawahir (Precious Stones) as mentioned above, his book al-Tafhim-li-Awail Sina'at al-Tanjim gives a summary of mathematics and astronomy. 

He has been considered as one of the very greatest scientists of Islam, and, all considered, one of the greatest of all times. His critical spirit, love of truth, and scientific approach were combined with a sense of toleration. His enthusiasm for knowledge may be judged from his claim that the phrase Allah is Omniscient does not justify ignorance.