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Karl Landsteiner is born in Vienna, Austria.
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Kal Landsteiner held the post of assistant in the University Department of Pathological Anatomy in Vienna, Austria.
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Alexander Wiener is born in Brooklyn, New York.
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Karl Landsteiner became Professor of Pathological Anatomy in the University of Vienna.
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In 1930, Karl Landsteiner wins the Nobel Prize for Physiology of Medicine for discovering major blood groups and also developing the ABO system of blood typing. Because of this discovery, blood transfusions became a routine medical practice.
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Alexander Weiner is awarded the title M.D.
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Weiner and Landsteiner discover the Rh factor in blood.
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Karl Landsteiner dies in New York, New York.
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