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Anton Von Leevwenhoek invented the microscope.
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William Harvey discovers cirulation of blood.
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Benjamine Franklin invented the first pair of bifocals.
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Edward Jenner disconvers small pox vaccine.
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Rene Laennec invented the first stethoscope.
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Elizabeth Blackwell became the first qualified women doctor in the U.S.
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Florence Nightingale started the first nursing school
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Joseph Lister started using antiseptics during surgery
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Clara Barton established the American Red Cross
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Carl Koller uses cocaine as a local anesthetic
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Louis Pasture finds the rabies vaccine
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Wilhelm Roentgen discovers the x-ray
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Alfred Adler and Sigmund Froid eastablished the first psychoanalytic society
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John Able develops the first artificail kidney
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Alexander Fleming discovered penicillin
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Measles vaccine is first developed
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Christan Barnard performed the first heart transplant
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Christiaan Barnard performs the fisrt successful heart transplant
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The first extrauterine "test tube" baby is conceived
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Toxic shock syndrome is linked to tampon use
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First two cases of AIDS
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Breast cancer gene is discovered