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2500 BCE
Egyptians Use Bloodletting to Try to Cure Diseases
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500 BCE
Greeks Distinguished Between Arteries and Veins
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Anton van Leeuwenhoek Viewed 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, and O
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Alfred Decastello Discovered 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 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 Begin Developing Blood-Screening Tests for Infectious Diseases