Hans Fischer was a German chemist who received the Nobel Prize in Chemistry in 1930 for his research on heme and chlorophyll, including the synthesis of heme. He established the connection between bile pigment and blood pigment. Erik Axel Karlfeldt was a Swedish poet who received the Nobel Prize in Literature posthumously in 1931. He was recognized as a poet in 1903 and was best known for his poetry. Norman Angell was a British economist and advocate for world peace who received the Nobel Peace Prize in 1933. He pushed for unity in Europe after World War I and wrote about the economic interdependence between nations. Albert Szent-Györgyi was a Hungarian physiologist who