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14/06/1868 Biologist Karl Landsteiner is born


Karl Landsteiner ~ A, B, O Blood Group System


Pioneer: Karl Landsteiner


Blood Types: ABO and Rh (with donuts and sprinkles!)

Karl Landsteiner was an Austrian biologist, physician, and immunologist and the first person to distinguish the main blood groups. His AB0 system of blood typing made blood transfusion a routine medical practice. He also co-discovered the second most important blood group system, the RF factor, and the poliovirus.
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