👤 PersonKarl Landsteiner1868–1943 · United StatesWikipediaWikipedia (es)Wikidata🌍 View on the globeInventions and discoveries · 31901ABO blood groupsDiscovery · discoverer1901–1907Blood groups and compatible transfusionInvention or technique · inventor1939-1940Rh factorDiscovery · discoverer
