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He discovered the difference between measles and small pox.
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Health care for the sick.
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The hundred year's war has been used by historians since the beginning of the nineteenth century to describe the long conflict that pitted the kings and kingdoms of France and England against each other from 1337 to 1453
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The black death (Black league) was one of the most devastating pandemics in human history, which resulted in 75 to 200million deaths, and peaking in Europe in years 1346-53
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French women that goes by the name of Jacoba Felicie, tried to practice medicine but is denied.
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Johannes Gutenberg invented the printing press with replaceable/removable wooden or metal letters in 1436 (completed in 1440).
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Cosimo de' Medici died August 1st, 1464 in Careggi.
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Use of the Scientific Method begins.
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Invented the reflective microscope
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Francis uses microscope to discover plague fleas
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Discovered a vaccine for smallpox
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Louis discovered that microorganisms cause fermentation disease originated the process of pasteurization developed vaccines against rabies and anthrax.
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Founder of antiseptic medicine and a pioneer in preventive medicine.
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Willhelm discovered X-Rays.
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John stop the outbreak of cholera.
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Alexander discovered penicillin. (1928-1945)
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First HMO insurance. (1930-1960)
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Salk discovers a polio vaccine in 1952.
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AZT is used to combat AIDS (1981-1986)
