1880 births

Walter Eduard Carl Koch (3 May 1880 in Dortmund, Germany – 21 November 1962 in Gretesch) was a German pathologist best known for the discovery of Koch's triangle, a triangular shaped area in the right atrium of the heart.
Educated in Freiburg im Breisgau and at the Kaiser Wilhelm Academy in Berlin, he obtained his doctorate in 1907 at Freiburg. As a military physician, he served at the pathological institute in Freiburg. Later on he worked in Berlin. Here he habilitated in general pathology and pathological anatomy in 1921. After being named a professor in 1922, he worked as head of department at Berlin's Westend hospital.

Julius Guttmann (Hebrew: יוליוס גוטמן), born Yitzchak Guttmann (15 April 1880 in Hildesheim – 19 May 1950 in Jerusalem), was a German-born rabbi, Jewish theologian, and philosopher of religion.

Lucien Leon Hauman-Merck (8 July 1880, in Ixelles – 16 September 1965, in Brussels) was a Belgian botanist, who studied and collected plants in South America and Africa.
He received his education in Gembloux, and afterwards relocated to Argentina, where he obtained a position in the department of agronomy and veterinary medicine at the University of Buenos Aires. From 1904 to 1925 he taught classes in botany, plant pathology and agricultural microbiology at the university. In 1910 he laid the foundations for its botanical garden.In Argentina he conducted important phytogeographical research, and he also performed plant collection duties that involved excursions to Paraguay, Chile and Uruguay. In 1927 he returned to Europe, where from 1928 to 1949, he served as a professor of botany at the Free University of Brussels. During this time period, he studied African flora, about which, he collected numerous plants in the Belgian Congo. In 1949 he returned to Argentina as an honorary professor at the University of Buenos Aires. The "Jardín Botánico Lucien Hauman" at the university is named in his honor.The genera Haumania (J.Léonard, 1949) and Haumaniastrum (P.A.Duvign. et Plancke, 1959) commemorate his name, as do species with the epithet of haumanii.

Adolfo Ferrata (26 April 1880 in Brescia – 9 March 1946) was an Italian pathologist and hematologist.
In 1904 he earned his medical degree from the University of Parma, spending the following years performing scientific research in clinics at Parma, Berlin and Naples. From 1921 to 1924 he was a professor of special medical pathology at the Universities of Messina and Siena, afterwards serving as a professor of clinical medicine at the University of Pavia, a position he kept for the remainder of his career.Among his contributions to medical science are investigations on the structure and embryology of the kidney, research on the morphology of intestinal villi and haematopoietic studies in normal and pathological conditions. In his research of haematopoiesis, Ferrata helped demonstrate the systemic nature of leukemia, leading him to support an hypothesis that elements of the blood (erythrocytes, leukocytes, and blood platelets) all originate from the hemocytoblast, a direct descendant of a mesenchymal cell, which he referred to as an emoistioblasto (hemohistioblast).In 1907 he was the first scientist to show that the complement could be split into two components that were singularly inactive, only regaining their activity when reunited.In 1920 Ferrata founded the journal "Haematologica".

Karl Erich Andrée (10 March 1880, in Münder am Deister – 18 August 1959, in Göttingen) was a German geologist and paleontologist.
He studied chemistry at the Technical University of Hannover and mineralogy, geology, paleontology and zoology at the University of Göttingen, receiving his doctorate in 1904. At Göttingen, he was encouraged by Adolf von Koenen to write his dissertation-thesis on the geology of Iburg. Later on, he worked as an assistant at the Mineralogical-Geological Institute of the Bergakademie in Clausthal (1906–08) and at the Technical University of Karlsruhe (1908–10).
In 1910 he obtained his habilitation from the University of Marburg, and five years later, became an associate professor of geology and paleontology at the University of Königsberg. In 1921 he attained a full professorship, and in 1930/31 he served as university rector. At Königsberg, he was also director at the Geological-Paleontological Institute and in charge of the amber collections. From 1946 onward, he taught classes on geology at the University of Göttingen. He was the author of over 125 scientific papers.

Félicien Tramel, often known simply as Tramel, (1880–1948) was a French film actor.

Elizabeth of the Trinity, OCD (French: Élisabeth de la Trinité), born Élisabeth Catez (18 July 1880 – 9 November 1906), was a French Discalced Carmelite, a mystic, and a spiritual writer. She was known for the depth of her spiritual growth as a Carmelite as well as bleak periods in which her religious calling was perceived to be unsure according to those around her; she however was acknowledged for her persistence in pursuing the will of God and in devoting herself to the charism of the Carmelites.Elizabeth was a gifted pianist and had strong feelings for the Carmelite charism. Of that experience as a professed religious she wrote in a letter: "I can't find words to express my happiness. Here there is no longer anything but God. He is All; He suffices and we live by Him alone" (Letter 91).Pope John Paul II celebrated her beatification in Paris on 25 November 1984; Pope Francis approved her canonization on 3 March 2016. The date was decided at a gathering of cardinals on 20 June 2016 and she was canonized as a saint on 16 October 2016.

André Heuzé, or sometimes André Heuse, (5 December 1880, in Saint-Arnoult-en-Yvelines –16 August 1942 in Paris) was a French movie director, screenwriter and playwright.

Léonce Cargue (20 October 1880 – 14 January 1955) was a French stage and film actor.

Léon Belières (1880–1952) was a French film actor.