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2500 BCE
Egyptians used bloodletting to try to cure some diseases.
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500 BCE
Greeks differentiated between arteries and veins.
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Anton van Leeuwenhoek views blood cells under a microscope
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First blood transfusion performed.
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Karl Landsteiner discovered three blood types (A, B, O)
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Alfred Decastello discovered blood type AB
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Percy Oliver established the first blood donor system.
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Mayo Clinic developed a way 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 Rh protein.
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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 tests for infectious diseases.