Karl Landsteiner

2026-06-22

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Who is this?

Karl Landsteiner (German: [kaʁl ˈlantˌʃtaɪnɐ]; 14 June 1868 – 26 June 1943) 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. He had distinguished the main blood groups in 1901, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the blood. In 1937, with Alexander S. Wien