Between 1901 and 1909, Karl Landsteiner, Jan Jansk and William Moss worked on the classification of what?
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
Karl Landsteiner had begun 20 years before. Shortly thereafter, Landsteiner and his collaborator, Philip Levine, published the work and, later that same year, the types began to be used in paternity suits. Landsteiner was posthumously awarded the Lasker-DeBakey Clinical Medical Research Award in 1946 and elected a Foreign Member of the Royal Society (ForMemRS) in 1941. Landsteiner converted from Judaism to Roman Catholicism in 1890. In 1916 he married Leopoldine Helene Wlasto, a Greek Orthodox who converted to her husband's Roman Catholic faith. In 1937 Landsteiner took unsuccessful legal action against an American publisher who had included him in the book "Who's