Karl Landsteiner Karl Landsteiner Karl Landsteiner, , (14 June 1868 – 26 June 1943) was an Austrian biologist, physician, and immunologist. He distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the blood, and identified, with Alexander S. Wiener, the Rhesus factor, in 1937, thus enabling physicians to transfuse blood without endangering the patient's life. With Constantin Levaditi and Erwin Popper, he discovered the polio virus in 1909. He received the Aronson Prize in 1926. In 1930, he received the Nobel Prize in Physiology or
Nobel Prize Nobel Prizes (and the Prizes in Economic Sciences, from 1969 on) were awarded 590 times to 935 people and organizations. With some receiving the Nobel Prize more than once, this makes a total of 27 organizations and 908 individuals. The prize ceremonies take place annually in Stockholm, Sweden (with the exception of the Peace Prize ceremony, which is held in Oslo, Norway). Each recipient (known as a "laureate") receives a gold medal, a diploma, and a sum of money that has been decided by the Nobel Foundation. (, each prize is worth 9,000,000 SEK, or about , €944,000, £836,000 or