Karl Landsteiner
Timeline: 14 June 1868 – 26 June 1943 Place of study: University of Vienna, Austria Famous for: Karl Landsteiner revolutionized medicine when, in 1900-1901, he identified three major human blood types: A, B, and O, which led to safe blood transfusions and millions of lives being saved. Later in his career, Landsteiner and his colleagues […]