Abū Mūsā Jābir ibn Ḥayyān (أبو موسى جابر بن حيّان) (c. 806−816)
Abū Mūsā Jābir ibn Ḥayyān is the purported author of an enormous number and variety of works in Arabic, often called the Jabirian corpus. The works that survive today mainly deal with alchemy and chemistry, magic, and Shi'ite religious philosophy. However, the original scope of the corpus covered a wide range of topics ranging from cosmology, astronomy and astrology, over medicine, pharmacology, zoology and botany, to metaphysics, logic, and grammar.
Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī was a Persian physician, philosopher and alchemist, widely considered one of the most important figures in the history of medicine. He also wrote on logic, astronomy and grammar. A comprehensive thinker, al-Razi made fundamental and enduring contributions to various fields, which he recorded in over 200 manuscripts, and is particularly remembered for numerous advances in medicine through his observations and discoveries.