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He discovered the way blood circulated
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first to observed living bacteria
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He injected a boy with cowpox then after a while he injected the boy with smallpox the boy got ill but got a full recovery a few days later.
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talked about the population growth
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Developed modern theory of evolution
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Discovered if you wash your hands it will spare the mother from childbed fever
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became known as the "father of antiseptic"
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came up with the laws of heredity
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Discovered the process of pasteurization.
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Found cures for rabies and chicken cholera
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founded the American Red Cross
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found a way to stain bacteria before gram staining
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Made hospitals more sanitary
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Discovered penicillin
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made the first commercial antibiotic
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Help find a way to store blood in large quantities
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Created the first antibiotic drug
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Isolate penicillin
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He found a cure for polio
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created a vaccine for polio
