Abu Bakr Muhammad Bin Zakaria Al- Razi

Abū Bakr Muhammad ibn Zakariyyāʾ al-Rāzī (c. 865–925 CE), known in the Latin West as Rhazes, was a Persian polymath, physician, philosopher, alchemist, and one of the most important figures in the history of medicine. Born in Rayy, Persia (near modern-day Tehran), he served as chief physician of hospitals in Rayy and Baghdad, attracting students and patients from across Asia. Al-Razi made fundamental contributions to various fields, including a pioneering distinction between smallpox and measles, and the discovery of alcohol and sulfuric acid. His voluminous medical writings, such as the comprehensive medical encyclopedia Kitab al-Hawi fi al-Tibb (The Comprehensive Book on Medicine) and Kitab al-Mansuri, profoundly influenced Western medical education for centuries. The Central Council For Research In Unani Medicine, Delhi, publishes his works including multiple volumes of كتاب الحاوى (Kitab Al-Hawi), which covers pulmonary diseases and other medical topics, as well as كتاب الفاخر (Kitab Al-Fakhir) and منافع الأغذية ودفع مضارها (Manafi al-Aghdhiyah wa-Daf u Madarriha), detailing various aspects of Unani medicine.