Abū Mūsā Jābir ibn Ḥayyān, died c. 806−816, is the purported author of a large number of works in Arabic, often called the Jabirian corpus. The c. 215 treatises that survive today mainly deal with alchemy and chemistry, magic, and Shi'ite religious philosophy. However, the original scope of the corpus was vast, covering a wide range of topics ranging from cosmology, astronomy and astrology, over medicine, pharmacology, zoology and botany, to metaphysics, logic, and grammar. 721 – 815; died at about 93. Alive at the same time as Charlemagne, Muḥammad ibn Musa al-Khwarizmi, Ādi Shankara, Abū Ḥanīfa, and Li Bai. Wiki link