Ibn-i Sina, full name Abu Ali Al-Hussein Ibn Abdullah Ibn Sina, known in the West as Avicenna, was a great Muslim physician, scholar and philosopher of the eastern world during the middle Ages. For years, his works were used as text books at western universities. He was a true pathfinder not only in medicine but also in mathematics and physics. The philosophical encyclopedia called "Kitab al-shifa" (Book of the Cure), "Al-Qanun" (The Canon of Medicine) which is a medical encyclopedia, and books titled "Kitab al-najat" (Book of Salvation) and "Isarat" and the twenty volume "Kitab al-insaf" which comments on total works of Aristotle are among his major works.
Ibn-i Sina (Avicenna) was born in 980 near Bukhara in former Iran territory (now in Uzbekistan) and died in 1037 at Hamadan in Iran. He read and memorized the entire Quran by age 10. He studied the Hellenistic authors on his own. By age 16 he turned to medicine. He began his writing career at age 21, writing titles in numerous fields, including mathematics, geometry, physics, astronomy, metaphysics, philology, music and poetry. Ibn-i Sina's most important work is Kitab al-shifa, which is a four-part encyclopaedia covering logic, physics, mathematics, and metaphysics.