Main Page | See live article | Alphabetical index Karl Landsteiner (June 14 1868 - June 26 1943), was an Austrian biologist. In 1909 he developed the modern system of classification of blood groups, and in 1930 he received the Nobel Prize in Physiology or Medicine. External links: Biography at the Nobel e-Museum This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.