Abu Bakr al-Razi (Rhazes)

Abu Bakr Muhammad ibn Zakariya al-Razi, known in medieval Europe as Rhazes, was born in the city of Ray in Persia, near present-day Tehran, around 865. Little is certain about his early life; later accounts say he came to medicine relatively late. He studied in Baghdad and became chief physician of hospitals both in Baghdad and in Ray. Al-Razi wrote on medicine, philosophy, alchemy, logic and astronomy, and he stressed careful observation of patients. His treatise on smallpox and measles is among the earliest known works to describe the two diseases clearly and tell them apart. His large medical notebook, compiled after his death as the Kitab al-Hawi, was translated into Latin as the Continens and used in European medical schools for centuries. He was also a well-known teacher, and accounts describe him treating rich and poor patients alike. He died in Ray; sources give the year as 925 or 935.

Abu Bakr al-Razi (Rhazes) is also an author in the library: author page and works.

Faith: Lived in the Islamic world; his religious views were controversial, and later writers condemned some of them as a departure from Islam. Source: Stanford Encyclopedia of Philosophy