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The Egyptians used bloodletting to attempt to cure disease.
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The Greeks found a way to distinguished between arteries
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Anton Van Leeuwenhoek viewed blood cells under a microscope
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The first blood transfusion was performed
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The discovery of three blood types of A, B, and O were made by Karl Landsteiner
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Alfred Decastello discovered the fourth blood type AB
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Percy Oliver established the first blood donor service
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Mayo Clinic developed a method to store blood or transfusion
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Dr. Bernard Fantus established the first blood bank
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Karl Landsteiner discovered the Rh protein
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The first case of AIDS recorded in the Congo
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Robert Gallo identified the virus causing AIDS
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Development of Elisa test to screen for diseases such as HIV
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Scientists began developing blood-screening tests for infectious diseases
