1. By Jarek Bridges and Brennan Ryan.

2. He is also famous for his early ability to distinguish smallpox and Measles through differential diagnosis.

3. Differential diagnosis: the process of differentiating between two or more conditions that share similar signs or symptoms. Smallpox: an acute contagious viral disease, with fever and pustules usually leaving permanent scars. It was effectively eradicated through vaccination by 1979. Measles: an infectious viral disease causing fever and a red rash on the skin, typically occurring in childhood. a disease of pigs and other animals caused by the encysted larvae of the human tapeworm.

4. Abū Bakr Muhammad ibn Zakariyyā al-Rāzī (Persian: ابوبكر محمّد زکرياى رازى ‎, translit. nastaliq ‎ Abūbakr-e Mohammad-e Zakariyyā-ye Rāzī, also known by his Latinized name Rhazes or Rasis ) (854 CE – 925 CE), was a Persian [3][4] polymath, physician, alchemist, philosopher, and important figure in the history of medicine.Persiantranslit.LatinizedPersian [3][4] polymathphysicianalchemistphilosopher A comprehensive thinker, 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 observationsand discoveries. [5] An early proponent of experimental medicine, he became a successful doctor, and served as chief physician of Baghdad and Rey hospitals. [2][6] As a teacher of medicine, he attracted students of all backgrounds and interests and was said to be compassionate and devoted to the service of his patients, whether rich or poor. [7]observations [5]experimental medicineRey [2][6] [7] He was among the first to use humorism to distinguish one contagious disease from another, [ citation needed ] and wrote a pioneering book about smallpox and measles providing clinical characterization of the diseases. [8] He also discovered numerous compounds and chemicals including Alcohol, kerosene, among others. [ citation needed ]humorism citation neededsmallpoxmeasles [8]Alcoholkerosene citation needed Through translation, his medical works and ideas became known among medieval European practitioners and profoundly influenced medical education in the Latin West. [2] Some volumes of his work Al-Mansuri, namely "On Surgery" and "A General Book on Therapy", became part of the medical curriculum in Western universities. [2] Edward Granville Browne considers him as "probably the greatest and most original of all the Muslim physicians, and one of the most prolific as an author". [9] and has been described as a doctor's doctor, [10] the father of pediatrics, [11] and a pioneer of ophthalmology. [2] Edward Granville Browne [9] [10]pediatrics [11]ophthalmology

5. Here are just a few examples of his texts and other paintings.

6. Ibn-Sina Discovered tuberculosis is contagious, can spread through water, and soil, and peoples emotional health is affected by physical.

7. The Canon of Medicine (Arabic: القانون في الطب ‎‎ al-Qānūn fī a ṭ - Ṭ ibb ) is an encyclopedia of medicine in five books compiled by Persian philosopher Avicenna (Ibn Sina) and completed in 1025ArabicAvicenna الرازي كتب " القانون في الطب "

8. Sources: Wikipedia: Al-Razi https://en.wikipedia.org/wiki/Muhammad_ibn_Zakariya_al-Razi Google:https://www.google.com/search?q=Canon+of+medicine&oq=Canon+of+medi cine&aqs=chrome.0.69i59j0l2j69i61j0l2.3129j0j7&sourceid=chrome&ie=UTF- 8&safe=active&ssui=onhttps://www.google.com/search?q=Canon+of+medicine&oq=Canon+of+medi cine&aqs=chrome.0.69i59j0l2j69i61j0l2.3129j0j7&sourceid=chrome&ie=UTF- 8&safe=active&ssui=on