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Birth of Hippocrates, also considered the father of medicine
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Birth of Galen, he was a physician to the gladiators and personal physician to several emperors.
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rubbing alcohol discovered by Mohammad ibn Zakari Razi
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Rhazes is the first to identify smallpox, as distinguished from measles, and to suggest blood as the cause of infectious disease.
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Zacharius Jannssen invents the microscope
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Realdo Columbo (William Harvey) confirmed the pulmonary circulation on vivisection.
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William Harvey publishes An Anatomical Study of the Motion of the Heart and of the Blood in Animals, describing how blood is pumped throughout the body by the heart, and then returns to the heart and recirculates.
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English architect Sir Christopher Wren is the first to administer medications intravenously by means of an animal bladder attached to a sharpened quill.
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Anton van Leeuwenhoek, discovers blood cells and observes animal and plant tissues and microorganisms.
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James Lind , a Scottish naval surgeon, discovers that citrus fruits prevent scurvy.
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Edward Jenner develops a method to protect people from smallpox by exposing them to the cowpox virus.
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Sir Humphry Davy announces the anesthetic properties of nitrous oxide, although dentists do not begin using the gas as an anesthetic for almost 45 years.
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Louis Pasteur discovered a vaccine for rabies.
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Felix Hoffman develops aspirin.
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Austrian-American Karl Landsteiner describes blood compatibility and rejection.
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Sir Frederick Gowland Hopkins suggests the existence of vitamins and concludes they are essential to health.
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First successful human blood transfusion using Landsteiner's ABO blood typing technique.
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Isopropyl alcohol was now invented
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Insulin first used to treat diabetes.
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First draft of human genome is announced; the finalized version is released three years later.
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A "mini-liver"—the size of a small coin—is generated from human cord blood stem cells by doctors at Newcastle University, U.K.
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Scientists discover how to use human skin cells to create embryonic stem cells.
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The FDA approves the first human clinical trials in the United States for a wearable artificial kidney designed by Blood Purification Technologies Inc.
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In March, DNA from an extinct woolly mammoth is spliced into that of an elephant.