Abu Bakr Muhammad ibn Zakariya Al-Razi was born in the Persian city of Rey, near Tehran. In Persia, he received a broad education and, in particular, studied philosophy, metaphysics, poetry and alchemy. The 30-year-old Al-Razi went to Baghdad, where he studied medicine. He soon became famous as a very skilful physician; led clinic in Ray and then in Baghdad. Ar-Razi was familiar with the ancient science, medicine and philosophy; He left works on philosophy, ethics, theology, logic, medicine, astronomy, physics and alchemy - all 184 works, of which 61 are extant; Many works of Ar-Razi were translated into Latin in Europe in X-XIII centuries.