1920 deaths

Albert Zürner (30 January 1890 – 18 July 1920) was a German diver who competed in the 1906 Summer Olympics, in the 1908 Summer Olympics, and in the 1912 Summer Olympics.

Louis Baron (real name Louis Bouchêne or Bouchenez; September 1838 – 2 March 1920) was a French actor and bass singer.

Cäsar Flaischlen (12 May 1864 – 16 October 1920) was a German poet. He is best known as the author of "Hab' Sonne im Herzen" ("Have Sunshine in Your Heart"), which has been translated into various languages. Composers such as Pauline Volkstein have set Flaischlen’s text to music.

Nathan Zuntz (6 October 1847, in Bonn – 22 March 1920, in Berlin) was a German physiologist born in Bonn. He was a pioneer of modern altitude physiology and aviation medicine.

Carl Legien (1 December 1861 – 26 December 1920) was a German unionist, moderate Social Democratic politician and first President of the International Federation of Trade Unions.

Teresa of Jesus of Los Andes (13 July 1900 – 12 April 1920), born as Juana Enriqueta Josephina de Los Sagrados Corazones Fernández Solar, (Spanish: Teresa de Jesús de Los Andes) was a Chilean nun of the Discalced Carmelites. Fernández Solar was a pious child but had an often unpredictable temperament for she could be prone to anger and being vain but could also demonstrate her charitable and loving nature; she seemed transformed when she decided to become a nun and her character seemed to change for her sole ambition was to dedicate herself to the service of God. But her time in the convent was cut short due to her contracting an aggressive disease that killed her - she knew she would die but was consoled knowing she would be able to make her profession before she died.Her canonization process opened on 23 April 1976 under Pope Paul VI and she became titled as a Servant of God. The confirmation of her life of heroic virtue on 22 March 1986 allowed for her to be titled as Venerable. Solar was beatified on 3 April 1987 in Chile after a miracle attributed to her from her native land cleared her for beatification while another miracle coming from Chile led Pope John Paul II to canonize her as a saint on 21 March 1993 in Saint Peter's Square.

Theodorus Henricus Antonius Adolph Molkenboer (23 February 1871, Leeuwarden – 1 December 1920, Lugano) was a Dutch painter and designer, notably, of book covers and posters. He was also an expert on the history of Dutch folk costumes and wrote several short works on that subject.

Jean-Pierre Morat (18 April 1846 – 25 July 1920) was a French physiologist born in Saint-Sorlin, department Saône-et-Loire.
He studied medicine at École de médecine de Lyon, traveling to Paris in 1873, where he presented his dissertation-thesis on bone marrow, "Contributions à l’étude de la moelle osseuse". He remained in Paris for three years, working in the laboratory of Claude Bernard (1813–1878), of whom, Morat became a devoted disciple. In Paris, he worked closely with veterinarian Henri Toussaint (1847–1890) and physiologist Albert Dastre (1844–1917). With Toussaint, he collaborated on "Les variations de l’état électrique des muscles" (Variations of the electrical state of muscles), and with Dastre, he undertook extensive research of the sympathetic nervous system. With Dastre, the "Dastre-Morat Law" is derived, a dictum which states that "the vasoconstriction of the capillaries of the body surface is usually accompanied by vasodilation of the internal vessels, especially of the viscera, and vice-versa".
Following his years spent in Paris, he became an instructor of physiology at the faculty of medicine in Lille. In 1882 he was appointed professor of physiology at the faculty of medicine in Lyon, a position he maintained until his retirement in 1916. In 1883 he was admitted to the Société de biologie, and in 1904 was elected as a correspondent to the Académie de Médecine. In 1916 he became a correspondent of the Académie des sciences.
Morat had a keen interest in the field of surgery, being credited for introducing a process of administering morphine and atropine to a patient prior to the administration of anesthesia. Among his better known writings was the six volume "Traité de physiologie" (1904), a work that was co-written with a former student of his, Maurice Doyon (1869–1934).

David Paul von Hansemann (5 September 1858 – 1920) was a German pathologist born in Eupen, east Belgium. He is remembered for his work in the field of oncology, in particular, his concept pertaining to anaplasia of cancer cells.
He studied medicine at the Universities of Berlin, Kiel and Leipzig, and following graduation spent nine years as an assistant to Rudolf Virchow (1821-1902) in Berlin. In 1890 he became habilitated in pathological anatomy, and in 1897 obtained the title of professor. In 1907 he began work as a prosector at Friedrichshain city hospital. During World War I he served as an army pathologist.
His name is associated with "Hansemann macrophages" (also known as "Hansemann cells"), which are large mononuclear cells containing Michaelis-Gutmann bodies that affect the urinary tract or kidney.

Emile Justin Armand Gautier (23 September 1837, in Narbonne – 27 July 1920, in Cannes) was a French biochemist and dietitian.