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 Peace Prize the final decision has not been made until the last meeting before the official announcement at the beginning of October. The Chairman of the Norwegian Nobel Committee presents the Nobel Peace Prize in the presence of the King of Norway on 10 December each year (the anniversary of Nobel's death). The Peace Prize is the only Nobel Prize not presented in Stockholm. The Nobel laureate receives a diploma, a medal, and a document confirming the prize amount. , the prize was worth 10 million SEK (about US$1.5 million). Since 1990, the Nobel Peace Prize Ceremony is held at Oslo City