Birthday of Karl Landsteiner Karl Landsteiner , (June 14, 1868 – June 26, 1943), was an Austrian biologist and physician . [2] He is noted for having first 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 having identified, with Alexander S. Wiener , the Rhesus factor , in 1937, thus enabling physicians to transfuse blood without endangering the patient′s life. Birthday of Che This man need no introduction. We all know him by direct or indirect information. He is Ernesto " Che " Guevara. Though we know him as a major figure of the Cuban Revolution , his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia in popular culture . He is al...
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