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Egyptians use blood letting
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Greeks recognized arteries and veins
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Anton van Leeuwenhoek establishes blood cells exist
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First successful blood transfusion
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Karl Landsteiner discovers blood types A, B, and O
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Alfred Decastello discovered blood type AB
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Percy Oliver created the first blood donor service
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Mayo Clinic found a method for storing blood meant for transfusions
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Dr. Bernard Fantus founded the first blood bank
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Karl Landsteiner found the Rh protein (what makes blood + and -)
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The first case of AIDS was recorded in the Congo, Africa
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Robert Gallo locates the virus that creates AIDS
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ELISA test was created to screen for diseases like HIV
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More blood-screening tests were developed to catch infectious diseases
