Karl Landsteiner
Austrian immunologist and pathologist
Karl Landsteiner (born June 14, 1868, Vienna, Austrian Empire [Austria]—died June 26, 1943, New York, N.Y., U.S.) was an Austrian American immunologist and pathologist who received the 1930 Nobel Prize for Physiology or Medicine for his discovery of the major blood groups and the development of the ABO system of blood typing that has made blood transfusion a routine medical practice. After receiving his M.D. in 1891 from the University of Vienna, Landsteiner studied organic...