Zakariya al-Razi

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About Zakariya al-Razi Abū Bakr Muhammad ibn Zakariyā Rāzī (Zakariā-ye Rāzi: Persian: زكريای رازی), known as Rhazes or Rasis after medieval Latinists, (August 26 865, Rayy— 925, Rayy) was a Persian alchemist, chemist, physician, philosopher and scholar. He is recognised as a polymath and often referred as "probably the greatest and most original of all the Muslim physicians, and one of the most prolific as an author". He made fundamental and enduring contributions to the fields of medicine, alchemy, music, and philosophy, recorded in over 184 books and articles in various fields of science. He was well-versed in Persian, Greek and Indian medical knowledge and made numerous advances in medicine through own observations and discoveries.Well educated in music, mathematics, philosophy, and metaphysics, he finally chose medicine as his professional field. As a physician, he was an early proponent of experimental medicine and is considered the father of pediatrics. He was also a pioneer of neurosurgery and ophthalmology. He was among the first to use Humoralism to distinguish one contagious disease from another. In particular, Razi was the first physician to distinguish smallpox and measles through his clinical characterization of the two diseases. And as an alchemist, Rhazes is known for his study of sulfuric acid and for his discovery of ethanol and its refinement to use in medicine. He became chief physician of Rayy and Baghdad hospitals. Rhazes was a rationalist and very confident in the power of ratiocination; he was widely regarded by his contemporaries and biographers as liberal and free from any kind of prejudice and very bold and daring in expressing his ideas without a qualm. He traveled extensively but mostly in Persia. As a teacher in medicine, he attracted students of all disciplines and was said to be compassionate and devoted to the service of his patients, whether rich or poor.

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Iran Scientists & Academicians Ranking

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Rank Name Total
14. Mostafa Chamran 618
15. Lotfali Askar-Zadeh 605
16. Morteza Motahhari 527
17. Biruni 407
18. Zakariya al-Razi 353
19. Majid Samii 303
20. Jalaleddin Kazzazi 218
21. Moradi Ghiasabadi 140
22. Bahram Moshiri 139

Scientists & Academicians Ranking

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Rank Name Total
124. Louis Pasteur 408
125. Biruni 407
126. Da Vinci 406
127. Günel Akdoğan 386
128. Zakariya al-Razi 353
129. Tadeás Hájek 333
130. Moustafa Mosharafa 331
131. Majid Samii 303
132. Dede Qorqud 299

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