Karl Landsteiner was an Austrian-American biologist, physician, and immunologist. He emigrated with his family to New York in 1923 at the age of 55 for professional opportunities, working for the Rockefeller Institute. The Nobel Prize in Physiology or Medicine 1930, announced October 30, 1930. Karl Landsteiner, “for his discovery of human blood groups”. Karl Landsteiner: born 1868, Vienna, Austrian Empire (now Austria). Wiki link Data: the Nobel Foundation (CC0).