Philosopher and Arab physician, who was born in Baghdad in 1162 and died in 1231. He studied sciences in his native city, and travelled to Arabia, Egypt, and Asia minor. Saladin appointed him Professor of the great mosque of Damascus, with an increased pension. He is known particularly for the two works he wrote, important for the knowledge of ancient history and the geography of Egypt. One of these works, which Arab biographers have not kept more than the title, is a description of Egypt in thirteen books, and the other is titled in the original Arabic abbreviated relationship of the Egypt.