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2500 BCE
Egyptians used bloodletting to try to cure diseases
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500 BCE
Greeks distinguished the difference between arteries and veins
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First blood transfusion preformed
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Karl Landsteiner discovered three blood types (A, B, O)
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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 for transfusions
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Dr. Bernard Fantus established the first blood bank
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Karl Landsteiner discovered the first Rh protein
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First case of AIDS recorded in 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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Scientist began developing blood-screening test for diseases