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Galen discovered and practiced tracheotomy on animals.
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Roger of Sicily forbade anyone from practicing medicine without a license.
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At Montpellier, people with medical licenses could teach there regardless of religion or background.
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A deadly plague began to occur, killing millions in Europe and Asia. It was transmitted from rodents and fleas. It caused fevers and swelling of the lymph glands.
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It was a disease that broke out among the French troops who were beseiging the Naples.
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He was a professor at the University of Padua that published an accurate representation of the human body.
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The scientific method was invented and used.
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Robert Hooke invented a reflective microscope.
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He describes bacteria.
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Edward Jenner discovers the first vaccination.
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50,000 people die from the outbreak of cholera.
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Smaller towns changed their sanitation due to Chadwick's discovery and the pressure by the health of towns association.
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Louis Pasteur discovered germs which helped in finding the causes of diseases.
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Marie Curie discovers the science of radioactivity.
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Dr. Christiaan Barnard, a South African heart surgeon, preformed the first human heart transplant.
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The first test-tube baby is born in the UK.
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Willem J. Kolff invented the artificial kidney dialysis machine.
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Scientists discovered how to use human skin cells to create embryonic stem cells.
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An outbreak of ebola happened in Africa, killing more than 10,000 people.
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A man named Abu Bakr Mohammad Ibn Zakariya al-Razi became the first person to discover a diagnostic differentiation of Smallpox and Measles.