I'd like to give a few examples.
🧪The man known as the father of chemistry (or alchemy, our teacher said both are used for him), Jabir ibn Hayyan. He wrote a book named Kitab al-Kimya, "kimya" means chemistry, and the word chemistry originated from that as well. He invented aqua regia, he had the first chemistry lab, discovered the methods of refining and crystallizing nitric acid, hydrogen chloride and sulfuric acid, and discovered diethyl ether, citric acid, acetic acid and tartaric acid. He developed the "retort" and literally introduced the concept of "base" to chemistry.
📐The father/ founder of algebra, Al-Khwarizmi. He wrote a book called Al-Jabr and the word "algebra" comes from "jabr". He presented the first systematic solution of linear and quadratic equations. One of his achievements in algebra was his demonstration of how to solve quadratic equations by completing the square, for which he provided geometric justifications. He introduced the methods of "reduction" and "balancing". The word "algorithm" literally comes from his name. He also produced the first table of tangents.
📐Biruni, who proposed that the radius be accepted as a unit in trigonometric functions and added secant, cosecant and cotangent functions to it. He made many contributions to astronomy that are too detailed for me to write here because this is long enough already, but for medicine, he managed to make a woman give birth by C section. He wrote Kitabu's Saydane which describes the benefits of around 3000 plants and how they are used.
🩺The father of early polymeric medicine, Ibn Sina. His books, The Law of Medicine and The Book of Healing were taught as the basic works in medical science in various European universities until the mid-17th century. He discovered that the eye was made up of six sections and that the retina was important for vision, performed cataract surgery. He performed kidney surgery, diagnosed diabetes by analyzing urine, identified tumors, and worked on diseases such as facial paralysis, ulcers, and jaundice. He used "anesthesia" in surgeries, invented instruments such as forceps and scalpels to remove catheters and tumors. He was the first physician in history to mention the existence of microbes, at a time when there was no microscope. He made contributions to so many fields: astronomy, physics, chemistry, psychology (he suggested treating patients with music).
🩺Al-Zahrawi wrote Kitab al-Tasrif, a thirty-volume encyclopedia of medical practices. The surgery chapter of this work became the standard textbook in Europe for the next five hundred years. He pioneered the use of catgut for internal stitches, and his surgical instruments are still used today to treat people. He did so much work in surgery that I can't write them all here. The first clinical description of an operative procedure for hydrocephalus was given by him, he clearly described the evacuation of superficial intracranial fluid in hydrocephalic children. He was also the first physician to identify the hereditary nature of haemophilia and describe an abdominal pregnancy, a subtype of ectopic pregnancy that in those days was a fatal affliction, and was first to discover the root cause of paralysis.
✈️Abbas ibn Firnas devised a means of manufacturing colorless glass, invented various planispheres, made corrective lenses, devised an apparatus consisting of a chain of objects that could be used to simulate the motions of the planets and stars, designed a water clock, and a prototype for a kind of metronome. He also attempted to FLY, and he did fly a respectable distance but forgot to add a tail to his wings and didn't stick the landing.
Women also became scholars in the Islamic society. An example would be Maryam al-Ijliyya, who was an astronomer and an astrolabe maker, who measured the altitude of celestial bodies with the astrolabes she made. Another example would be Fatima al-Fihri, who founded the oldest university in the world, the University of Qarawiyyin.
Baghdad was the dream place anyone in academia now would want to go, it was a peaceful place of inclusivity and research. So many scholars advanced so many fields of study. Ibn al-Haytham invented camera obscura (and pinhole camera), Ibn al-Nafis was the first to describe the pulmonary circulation of blood, father of robotics Ismail al-Jazari invented the elephant clock and his list of contributions to engineering are so long that I can't write them here...
These are just a few examples, of course. I hope this encourages people to do research on this topic more. I even added some emojis to make this more fun to read.💁🏻♀️
