1920

1920 (MCMXX) was a leap year starting on Thursday in the Gregorian calendar and a leap year starting on Wednesday in the Julian calendar.

• The King of Spain blesses the Real Madrid football team.
• August Krogh, Danish zoologist, won the 1920 Nobel Prize in Physiology or Medicine

• January 2 – Isaac Asimov, Russian-born American science fiction writer (d. 1992)
• January 5 - Arturo Benedetti Michelangeli, Italian pianist (d. 1995)
• January 6 – John Maynard Smith, British theoretical evolutionary biologist and geneticist (d. 2004)
• January 9 - Clive Dunn, British actor, comedian, and singer (d. 2012)
• January 19 - Roberto M. Levingston, 36th President of Argentina (d. 2015)
• January 19 – Javier Pérez de Cuéllar, Secretary-General of the United Nations (d. 2020)
• January 20 – Federico Fellini, Italian movie director (d. 1993)
• January 20 – DeForest Kelley, American actor (d. 1999)
• January 22 – Alf Ramsey, English football manager (d. 1999)
• January 23 – Gottfried Böhm, German architect and sculptor (d. 2021)

• February 11 – King Farouk of Egypt (d. 1965)
• February 26 – Tony Randall, American actor (d. 2004)
• February 29 – Michèle Morgan, French actress (d. 2016)

• March 11 – Nicolaas Bloembergen, Dutch-born American physicist (d. 2017)
• March 17 – Sheikh Mujibur Rahman, President of Bangladesh (d. 1975)

• April 1 – Toshiro Mifune, Japanese actor (d. 1997)
• April 5 – Chatichai Choonhavan, Prime Minister of Thailand (d. 1998)
• April 6 – Edmond H. Fischer, American biochemist and Nobel Prize winner (d. 2021)
• April 11 - Emilio Colombo, 40th Prime Minister of Italy (d. 2013)
• April 13 – Liam Cosgrave, Taoiseach (d. 2017)
• April 15 – Richard von Weizsäcker, former President of Germany (d. 2015)

• May 18 – Pope John Paul II (d. 2005)
• May 26 – Peggy Lee, American singer and actress (d. 2002)

• June 10 – Ruth Graham, American poet, wife of Billy Graham (d. 2007)
• June 11 – King Mahendra of Nepal (d. 1972)
• June 16 – José López Portillo, 51st President of Mexico (d. 2004)
• June 18 – Mario Beccaria, Italian politician (d. 2003)

• July 11 – Yul Brynner, Russian-American actor (d. 1985)
• July 17 – Juan Antonio Samaranch, 7th President of the International Olympic Committee (d. 2010)
• July 25 – Rosalind Franklin, British chemist, biophysicist, and X-ray crystallographer (d. 1958)

• August 17 – Maureen O'Hara, Irish-American film actress and singer (d. 2015)
• August 18 - Shelley Winters, American actress (d. 2006)
• August 22 – Ray Bradbury, American writer (d. 2012)
• August 26 – Prem Tinsulanonda, Thai politician, 16th Prime Minister of Thailand (d. 2019)

• September 23 - Mickey Rooney, American actor (d. 2014)

• October 1 – Walter Matthau, American actor (d. 2000)
• October 17 – Montgomery Clift, American actor (d. 1966)
• October 22 – Timothy Leary, American psychologist (d. 1996)
• October 31 – Melina Mercouri, Greek singer, actress and politician (d. 1994)

• November 8 – Esther Rolle, American actress, known for role in Good Times and Maude (d.1998)
• November 19 – Gene Tierney, American actress (d. 1991)
• November 21 - Stan Musial, American baseball player (d. 2013)

• December 9 – Carlo Azeglio Ciampi, 10th President of Italy (d. 2016)
• December 13 – Kaysone Phomvihane, President of Laos (d. 1992)

• January 2 – Paul Adam, French writer (b. 1862)
• January 3 – Zygmunt Janiszewski, Polish mathematician (b. 1888)
• January 4 – Benito Pérez Galdós, Spanish novelist (b. 1843)
• January 6 – Hieronymus Georg Zeuthen, Danish mathematician (b. 1839)
• January 7 – Edmund Barton, Prime Minister of Australia (b. 1849)
• January 18 – Giovanni Capurro, Italian poet (b. 1825)
• January 24 – William Percy French, Irish songwriter and entertainer (b. 1854)
• January 24 – Amedeo Modigliani, Italian painter and sculptor (tuberculosis) (b. 1884)
• January 24 – William Plunket, 5th Baron Plunket, British diplomat and administrator (b. 1864)
• January 26 – Jeanne Hébuterne, French artist, model, and common-law wife of Amedeo Modigliani (suicide) (b. 1898)
• February 2 – Field E. Kindley, American World War I aviator (b. 1896)
• February 3 – Frank Brown, Governor of Maryland (b. 1846)
• February 6 – Augustus F. Goodridge, Canadian merchant and politician (b. 1839)
• February 7 – Aleksandr Kolchak, Russian naval commander (b. 1874)
• February 15 – Joseph Burton Sumner, founder of Sumner, Mississippi (b. 1837)
• February 20 – Joseph J. Fern, Mayor of Honolulu (b. 1872)
• February 20 – Robert Peary, American Arctic explorer (b. 1856)
• February 27 – William Sherman Jennings, Governor of Florida (b. 1863)
• March 1 – John H. Bankhead, U.S. Senator from Alabama (b. 1842)
• March 1 – William A. Stone, Governor of Pennsylvania (b. 1846)
• March 1 – Joseph Trumpeldor, Russian Zionist (b. 1880)
• March 4 – Roswell P. Bishop, U.S. Congressman from Michigan (b. 1843)
• March 11 – Julio Garavito Armero, Colombian astronomer (b. 1865)
• March 13 – Charles Lapworth, English geologist (b. 1842)
• March 26 – William Chester Minor, American surgeon (b. 1834)
• March 26 – Mary Augusta Ward, Tasmanian novelist (b. 1851)
• March 31 – Paul Bachmann, German mathematician (b. 1837)
• March 31 – Edwin Warfield, Governor of Maryland (b. 1848)
• April 8 – John Brashear, American astronomer (b. 1840)
• April 8 – Charles Tomlinson Griffes, American composer (b. 1884)
• April 9 – Moritz Cantor, German historian of mathematics (b. 1829)
• April 21 – Maria L. Sanford, American educator (b. 1836)
• April 26 – Srinivasa Ramanujan, Indian mathematician (b. 1887)
• May 1 – Princess Margaret of Connaught, Crown Princess of Sweden (b. 1882)
• May 9 – Agnes Macdonald, wife of John A. Macdonald, Prime Minister of Canada (b. 1836)
• May 11 – James Colosimo, Italian-born gangster (b. 1877)
• May 11 – William Dean Howells, American writer (b. 1837)
• May 16 – Levi P. Morton, Vice President of the United States (b. 1824)
• May 21 – Venustiano Carranza, President of Mexico (b. 1859)
• May 21 – Eleanor H. Porter, American novelist (b. 1868)
• May 23 – Svetozar Borojevic, Austro-Hungarian field marshal (b. 1856)
• May 30 – George Ernest Morrison, Australian adventurer (b. 1862)
• June 5 – Rhoda Broughton, Welsh writer (b. 1840)
• June 5 – Julia A. Moore, American poet (b. 1847)
• June 6 – James Dunsmuir, Canadian politician (b. 1851)
• June 13 – Essad Pasha, Prime Minister of Albania (b. 1863)
• June 14 – Gabrielle Réjane, French actress (b. 1856)
• June 14 – Max Weber, German political economist (b. 1864)
• June 18 – Jewett W. Adams, Governor of Nevada (b. 1835)
• June 18 – John Macoun, Irish born naturalist (b. 1831)
• June 20 – Marie Adolphe Carnot, French chemist, mining engineer, and politician (b. 1839)
• June 20 – John Grigg, New Zealand astronomer (b. 1838)
• June 27 – Adolphe Basile Routhier, Canadian poet (b. 1839)
• July 1 – Delfim Moreira, President of Brazil (b. 1868)
• July 10 – John Fisher, 1st Baron Fisher, British admiral (b. 1841)
• July 11 – Empress Eugénie of France (b. 1826)
• July 14 – Albert Keller, German painter (b. 1844)
• July 22 – William Kissam Vanderbilt, American heir (b. 1849)
• August 1 – Frank Hanly, Governor of Indiana (b. 1863)
• August 1 – Bal Gangadhar Tilak, Indian nationalist (b. 1856)
• August 2 – Ormer Locklear, American pilot (b. 1891)
• August 9 – Samuel Griffith, Australian politician and judge (b. 1845)
• August 10 – Adam Politzer, Austrian otologist (b. 1835)
• August 12 – Hermann Struve, Russian-born astronomer (b. 1854)
• August 16 – Henry Daglish, Premier of Australia (b. 1866)
• August 16 – Joseph Norman Lockyer, English astronomer (b. 1836)
• August 17 – Ray Chapman, baseball player (b. 1891)
• August 22 – Anders Zorn, Swedish painter (b. 1860)
• August 26 – James Wilson, Scottish-born American politician (b. 1835)
• August 31 – Wilhelm Wundt, German physiologist and psychologist (b. 1832)
• September 7 – Simon-Napoléon Parent, Premier of Quebec (b. 1855)
• September 10 – Olive Thomas, American actress (b. 1894)
• September 18 – Robert Beaven, Canadian politician (b. 1836)
• September 24 – Peter Carl Fabergé, Russian jeweler (b. 1846)
• September 25 – Jacob Schiff, German-born banker and philanthropist (b. 1847)
• September 30 – William Wilfred Sullivan, Canadian journalist, politician, and jurist (b. 1843)
• October 2 – Winthrop M. Crane, Governor of Massachusetts and Senator (b. 1853)
• October 10 – Hudson Stuck, English mountaineer (b. 1865)
• October 19 – John Reed, American journalist (b. 1887)
• October 20 – Max Bruch, German composer (b. 1838)
• October 24 – Grand Duchess Marie Alexandrovna of Russia (b. 1853)
• November 4 – Ludwig Struve, Russian astronomer (b. 1858)
• November 13 – Luc-Olivier Merson, French painter and illustrator (b. 1846)
• November 23 – George Callaghan, British admiral (b. 1852)
• November 25 – Gaston Chevrolet, Swiss-born automobile race driver and manufacturer (b. 1892)
• November 30 – Eugene W. Chafin, American politician (b. 1852)
• December 3 – William de Wiveleslie Abney, English astronomer and photographer (b. 1843)
• December 11 – Olive Schreiner, South African writer (b. 1855)
• December 12 – Edward Gawler Prior, Canadian mining engineer and politician (b. 1854)
• December 14 – George Gipp, American football player (b. 1895)

• The Cabinet of Doctor Caligari is released.