October 21

Events 
 Up to 1900 
 686 – Conon becomes Pope.
 1096 – People's Crusade: The Turkish army heavily defeats the People's Army of the West.
 1097 – First Crusade: The Siege of Antioch begins.
 1209 – Otto IV, Holy Roman Emperor is crowned by Pope Innocent III.
 1392 – Emperor Kameyama of Japan abdicates the throne in favour of his arch-rival Emperor Go-Komatsu.
 1512 – Martin Luther joins the theological faculty at the University of Wittenberg.
 1520 – Ferdinand Magellan enters what is now known as the Magellan Strait.
 1600 – Tokugawa Ieyasu defeats the leaders of rival Japanese clans in the Battle of Sekigahara, which marks the beginning of the Tokugawa shogunate, who in effect rule Japan until the mid-Nineteenth century.
 1638 – In England, the church at Widecombe-on-the-Moor is struck by lightning during an afternoon service, leading to new scientific research on lightning strikes.
 1797 – In Boston Harbor, the 44-gun United States Navy frigate USS Constitution is launched.
 1805 – Napoleonic Wars: Battle of Trafalgar – a British fleet led by Admiral Lord Nelson defeats a combined French and Spanish fleet off the coast of Spain under Admiral Villeneuve. It signalled the virtual end of French maritime power and left Britain navally unchallenged until the twentieth century.
 1805 – Napoleonic Wars: Austrian General Mack surrendurs his army to the Grand Armee of Napoleon at Ulm, reaping Napoleon over 30,000 prisoners and inflicting 10,000 casualties on the losers. Ulm was considered to be one of Napoleon's finest hours.
 1816 – The Penang Free School is founded in George Town, Malaysia. It is the oldest English language school in Southeast Asia.
 1824 – Joseph Aspdin patents Portland cement.
 1854 – Florence Nightingale and a staff of 38 nurses were sent to the Crimean War.
 1861 – American Civil War: Battle of Ball's Bluff – Union forces under Colonel Edward Baker are defeated by Confederate troops in the second major battle of the war. Baker, a close friend of Abraham Lincoln, is killed in the fighting.
 1867 – Manifest Destiny: Medicine Lodge Treaty – Near Medicine Lodge Creek, Kansas a landmark treaty is signed by southern Great Plains Indian leaders. The treaty requires Native American Plains tribes to relocate a reservation in western Oklahoma.
 1879 – Using a filament of carbonized thread, Thomas Edison tests the first practical electric light bulb (it lasted 13 1/2 hours before burning out).
 1885 – In an assassination attempt, Danish Prime Minister Jacob Estrup is shot.
 1888 – The Swiss Social Democratic Party is founded.
 1895 – The Republic of Taiwan collapses as Japanese forces invade.

 1901 – 2000 
 1902 – In the United States, a five-month strike by United Mine Workers ends.
 1907 – A magnitude 8.1 earthquake hits Central Asia, killing 12,000.
 1910 – HMS Niobe arrives at Halifax Harbour, Nova Scotia to become the first ship of the Royal Canadian Navy.
 1921 – US President Warren G. Harding delivers the first speech by a sitting president against lynching in the deep south.
 1930 – A mining disaster at Alsdorf, near Aachen, Germany, kills 271 people.
 1941 – World War II: Germans rampage in Yugoslavia, killing thousands of civilians.
 1943 – The Provisional Government of Free India is declared by Subhas Chandra Bose.
 1944 – The first kamikaze attack: HMAS Australia was hit by a Japanese plane carrying a 200 kg (441 pound) bomb off Leyte Island, as the Battle of Leyte Gulf began.
 1944 – World War II: Aachen becomes the first major German city to fall to the Allies.
 1945 – Women's suffrage: Women are allowed to vote in France for the first time.
 1945 – Argentine military officer and politician Juan Perón married actress Evita.
 1947 – 21 die as a fire destroys an asylum in Hoff, Germany.
 1948 – A Lockheed Constellation airplane crashes at Prestwick, Scotland, killing 39 people.
 1957 – The movie Jailhouse Rock, starring Elvis Presley, opens.
 1959 – In New York City, the Solomon R. Guggenheim Museum opens to the public. It was designed by Frank Lloyd Wright.
 1959 – US President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA.
 1962 – Norwegian postal ship Sanct Svithun sinks, killing 41.
 1965 – Comet Ikeya-Seki approaches Perihelion, passing 200,000 kilometers (279,617 miles) within Earth.
 1966 – Aberfan disaster: A coal tip falls on the village of Aberfan in Wales, killing 144 people, mostly schoolchildren
 1967 – Vietnam War: More than 100,000 war protesters gather in Washington, DC. A peaceful rally at the Lincoln Memorial is followed by a march to The Pentagon and clashes with soldiers and United States Marshals protecting the facility (event lasts until October 23; 683 people will be arrested). Similar demonstrations occurred simultaneously in Japan and Western Europe.
 1969 – Willy Brandt is elected Chancellor of West Germany.
 1971 – 22 people are killed in a gas explosion at a shopping centre in Clarkston, East Renfrewshire, near Glasgow, Scotland.
 1973 – John Paul Getty III's ear is cut off by his kidnappers and sent to a newspaper in Rome; it does not arrive until November 8.
 1977 – The European Patent Institute is founded.
 1980 – 1980 World Series: In 6 games, the Philadelphia Phillies win their first World Series.
 1981 – Andreas Papandreou becomes Prime Minister of Greece.
 1986 – In Lebanon, pro–Iranian kidnappers claim to have abducted American writer Edward Tracy (he will be released in August 1991).
1986 – African Charter on Human and Peoples' Rights enters into force.
 1987 – Former Miss America Bess Myerson is arrested on charges of bribery, conspiracy, and mail fraud, all involving an alimony-fixing scandal. She is later found not guilty.
 1994 – North Korea nuclear weapons program: North Korea and the United States sign an agreement that requires North Korea to stop its nuclear weapons program and agree to inspections.
 1994 – In Seoul, South Korea, 32 people are killed when the Seongsu Bridge collapses.
 1997 – Hotel owners from the Detroit area meet to discuss Jack Kevorkian's practice of leaving corpses in hotel rooms.
 1997 – The government of Singapore announces in a widely publicized "toilet alert" that the drive for toilet cleanliness is a great success; five toilets were selected by citizens as toilet role models.

 From 2001 
 2004 – The Boston Red Sox win the American League pennant, defeating the New York Yankees 10–3 in Game 7 of the American League Championship Series, capping off a remarkable comeback from three games to none down to win.
 2005 – Hurricane Wilma strikes the Yucatán, Mexico.
 2007 – Kimi Raikkonen wins the Formula One World Championship.
 2007 – Donald Tusk is elected Prime Minister of Poland.
 2015 – This is the exact date that the main characters travel to in Back to the Future Part II.
 2016 – A train crash in Eséka, Cameroon, kills at least 55 people.
 2017 – The government of Spain begins moves to take direct control of the region of Catalonia after the region's disputed referendum on its independence on October 1.
 2019 – The 2019 Canadian federal election is held, with Justin Trudeau's Liberal Party of Canada retaining power, but with a reduced number of seats and in second place in the popular vote behind Andrew Scheer's Conservative Party of Canada.
 2025 – Sanae Takaichi is confirmed as Japan's first female prime minister by the Japanese Diet.

 Births 
 Up to 1900 
 1328 – Hongwu Emperor of China (d. 1398)
 1449 – George, Duke of Clarence (d. 1478)
 1527 – Louis I, Cardinal of Guise (d. 1578)
 1581 – Domenico Zampieri, Italian painter (d. 1641)
 1650 – Jean Bart, French naval commander (d. 1702)
 1660 – Georg Ernst Stahl, German scientist (d. 1734)
 1671 – King Frederick IV of Demmark (d. 1730)
 1672 – Ludovico Antonio Muratori, Italian writer (d. 1750)
 1675 – Emperor Higashiyama of Japan (d. 1710)
 1687 – Nicolaus I Bernoulli, Swiss mathematician (d. 1759)
 1728 – José Moñino, 1st Count of Floridablanca, Spanish politician (d. 1808)
 1762 – Herman Willem Daendels, Dutch statesman (d. 1818)
 1772 – Samuel Taylor Coleridge, British poet (d. 1834)
 1775 – Giuseppe Baini, Italian composer (d. 1844)
 1790 – Alphonse de Lamartine, French writer (d. 1869)
 1811 – Filippo Colini, Italian opera singer (d. 1863)
 1823 – Emilio Arrieta, Spanish composer (d. 1894)
 1833 – Alfred Nobel, Swedish inventor (d. 1896)
 1837 – James A. Beaver, 20th Governor of Pennsylvania (d. 1914)
 1839 – Georg von Siemens, German banker and politician (d. 1901)
 1845 – Will Carleton, American poet (d. 1912)
 1846 – Edmondo De Amicis, Italian novelist, journalist, poet and short-story writer (d. 1908)
 1847 – Giuseppe Giacosa, Italian writer (d. 1906)
 1874 – Henri Guisan, Swiss general (d. 1960)
 1884 – Claire Waldoff, German singer and entertainer (d. 1957)
 1886 – Eugene Burton Ely, American aviator (d. 1911)
 1886 – Karl Polanyi, Austro-Hungarian economist (d. 1964)
 1887 – James L. McConaughy, American politician, Governor of Connecticut (d. 1948)
 1887 – Krishna Singh, Indian politician, 1st Chief Minister of Bihar (d. 1961)
 1892 – Otto Nerz, German footballer and coach (d. 1949)
 1894 – Edogawa Rampo, Japanese writer and critic (d. 1965)
 1895 – Edna Purviance, American actress (d. 1958)
 1895 – Paavo Johansson, Finnish javelin thrower (d. 1983)
 1896 – Evgeny Schwarz, Russian movie writer (d. 1958)

 1901 – 1950 
 1901 – Margarete Buber-Neumann, German politician (d. 1989)
 1907 – Nikos Engonopoulos, Greek painter and poet (d. 1985)
 1911 – Mary Blair, American artist and illustrator (d. 1978)
 1912 – Georg Solti, Hungarian conductor (d. 1997)
 1914 – Kazimierz Swiatek, Roman Catholic cardinal of Belarus (d. 2011)
 1914 – Martin Gardner, American writer (d. 2010)
 1917 – Dizzy Gillespie, American musician (d. 1993)
 1918 – Hulett C. Smith, Governor of West Virginia (d. 2012)
 1921 – Malcolm Arnold, British composer (d. 2006)
 1921 – Ingrid van Houten-Groeneveld, Dutch astronomer (d. 2015)
 1921 – Sena Jurinac, Bosnian operatic soprano (d. 2011)
 1922 – Liliane Bettencourt, French L'Oreal heiress (d. 2017)
 1924 – Joyce Randolph, American actress
 1924 – Julie Wilson, American actress (d. 2015)
 1925 – Celia Cruz, Cuban Salsa singer (d. 2003)
 1925 – Virginia Zeani, Romanian soprano
 1926 – Leonard Rossiter, English comedian and actor (d. 1984)
 1926 – William Love Waller, Governor of Mississippi (d. 2011)
 1927 – Fritz Wintersteller, Austrian mountaineer (d. 2018)
 1927 – Howard Zieff, American director (d. 2009)
 1928 – Vern Mikkelsen, American basketball player (d. 2013)
 1928 – Whitey Ford, American baseball player
 1929 – Pierre Bellemare, French writer, radio and television host (d. 2018)
 1930 – Pascale Roberts, French actress (d. 2019)
 1930 – Ivan Silayev, Soviet Prime Minister
 1931 – Shammi Kapoor, Indian actor (d. 2011)
 1932 – Alex Ifeanyichukwu Ekwueme, Vice president of Nigeria (d. 2017)
 1932 – Pál Csernai, Hungarian footballer (d. 2013)
 1933 – Georgia Brown, American actress (d. 1992)
 1933 – Joan Hinde, English trumpeter and entertainer (d. 2015)
 1937 – Hans-Ulrich Schmincke, German volcanologist
 1937 – Said Afandi al-Chirkawi, Russian spiritual leader (d. 2012)
 1937 – Valentina Pyatchenko, Russian singer (Buranovskiye Babushki)
 1940 – Geoffrey Boycott, English cricketer
 1940 – Manfred Mann, South African-English musician
 1940 – Marita Petersen, Prime Minister of the Faroe Islands (d. 2001)
 1941 – Steve Cropper, American musician and songwriter
 1942 – Christopher A. Sims, American economist
 1942 – Paul Churchland, Canadian philosopher
 1942 – Judith Sheindlin, American judge (Judge Judy)
 1942 – Lou Lamoriello, American ice hockey player, coach and manager
 1943 – Tariq Ali, Pakistani writer and historian
 1944 – Jean-Pierre Sauvage, French chemist, 2016 joint Nobel Prize in Chemistry laureate
 1944 – Mandy Rice-Davies, British media personality (d. 2014)
 1945 – Nikita Mikhalkov, Soviet-Russian movie director
 1946 – Jane Heal, British philosopher
 1946 – Lux Interior, American singer (d. 2009)
 1948 – Tom Everett, American actor
 1949 – Benjamin Netanyahu, Prime Minister of Israel
 1949 – LeTanya Richardson, American actress
 1949 – Mike Keenan, Canadian ice hockey coach
 1950 – Ronald McNair, American astronaut (d. 1986)

 1951 – 1975 
 1952 – Trevor Chappell, Australian cricketer
 1952 – Brent Mydland, American keyboardist (d. 1990)
 1952 – Patti Davis, American actress and novelist, daughter of Ronald Reagan
 1953 – Peter Mandelson, English politician
 1953 – Eric Faulkner, Scottish singer-songwriter and guitarist
 1954 – Brian Tobin, Canadian politician
 1955 – Catherine Hardwicke, American movie director, producer, designer and screenwriter
 1956 – Carrie Fisher, American actress and writer (d. 2016)
 1957 – Steve Lukather, American guitarist and singer (Toto)
 1957 – Wolfgang Ketterle, German physicist, Nobel Prize winner
 1958 – Andre Geim, Russian-born physicist, Nobel Prize winner
 1959 – Ken Watanabe, Japanese actor
 1960 – Scott Stearney, American Vice Admiral (d. 2018)
 1962 – David Campese, Australian rugby player
 1964 – Jon Carin, American musician
 1965 – Ion Andoni Goikoetxea, Basque-Spanish footballer
 1967 – Paul Ince, English footballer
 1969 – Salman bin Hamad bin Isa Al Khalifa, crown prince of Bahrain
 1969 – Chris Law, Scottish politician
 1971 – Jade Jagger, socialite and jewellery designer
 1971 – Damien Martyn, Australian cricketer
 1971 – Paul Telfer, Scottish footballer
 1971 – Thomas Ulsrud, Norwegian curler
 1972 – Felicity Anderson, Australian actress
 1974 – Costel Busuioc, Romanian tenor

 From 1976 
 1976 – Andrew Scott, Irish actor
 1979 – Fernanda Rodrigues, Brazilian actress and television presenter
 1979 – Karl Harris, British motorcycle racer (d. 2014)
 1980 – Kim Kardashian, American socialite, model and reality television personality
 1981 – Nemanja Vidic, Serbian footballer
 1981 – Martin Castrogiovanni, Argentine-born Italian rugby player
 1983 – Hrvoje Custic, Croatian footballer (d. 2008)
 1983 – Amber Rose, American model
 1983 – Charlotte Sullivan, Canadian actress
 1984 – Kieran Richardson, English footballer
 1986 – Natalee Holloway, American teenager (missing since 2005)
 1986 – Tamerlan Tsarnaev, Chechen–American terrorist (d. 2013)
 1988 – James White, American basketball player
 1989 – Sam Vokes, Welsh footballer
 1990 – Maxime Vachier-Lagrave, French chess player
 1990 – Ricky Rubio, Spanish basketball player
 1992 – Bernard Tomic, Australian tennis player
 1993 – Kane Brown, American singer
 1995 – Cameron Burgess, Scottish-Australian footballer
 1995 – Shannon Magrane, American singer

 Deaths 
 Up to 1900 
 310 – Pope Eusebius
 1125 – Cosmas of Prague, Bohemian writer
 1204 – Robert de Beaufort, 4th Earl of Leicester
 1221 – Alix, Duchess of Brittany (b. 1201)
 1266 – Birger Jarl, Swedish statesman (b. 1210)
 1422 – King Charles VI of France (b. 1368)
 1500 – Emperor Go-Tsuchimikado of Japan (b. 1442)
 1558 – Julius Caesar Scaliger, humanist scholar (b. 1484)
 1600 – Toda Katsushige, Japanese warlord (b. 1557)
 1623 – William Wade, English statesman and diplomat (b. 1546)
 1687 – Sir Edmund Waller, English poet (b. 1606)
 1708 – Guru Gobind Singh, 10th Sikh Guru (b. 1666)
 1765 – Giovani Paolo Panini, Italian painter and architect (b. 1691)
 1775 – Peyton Randolph, American politician, President of the Continental Congress (b. 1721)
 1805 – Killed in the Battle of Trafalgar:
 Horatio Nelson, British admiral (b. 1758)
 George Duff, Royal Navy captain (b. 1764)
 John Cooke, Royal Navy captain (b. 1763)
 1818 – Michael Howe, bushranger in Tasmania, Australia
 1821 – Dorothea Ackermann, German actress (b. 1752)
 1872 – Jacques Babinet, French physicist (b. 1794)
 1873 – Johann Sebastian Welhaven, Norwegian poet (b. 1807)
 1896 – James Henry Greathead, British engineer (b. 1844)

 1901 – 2000 
 1903 – Jinmaku Kyugoro, Japanese sumo wrestler (b. 1829)
 1904 – Isabelle Eberhardt, Swiss explorer and writer (b. 1877)
 1907 – Jules Chevalier, French priest (b. 1824)
 1916 – Count Karl von Stürgkh, Austrian politician (b. 1859)
 1929 – Vasil Radoslavov, Bulgarian politician (b. 1854)
 1931 – Arthur Schnitzler, Austrian writer (b. 1862)
 1931 – Barbecue Bob, American blues musician (b. 1902)
 1940 – William G. Conley, Governor of West Virginia (b. 1866)
 1944 – Alois Kayser, German missionary, working in Nauru
 1944 – Hilma af Klint, Swedish artist and mystic (b. 1862)
 1952 – Hans Merensky, South African geologist and philanthropist (b. 1871)
 1967 – Ejnar Hertzsprung, Danish astronomer (b. 1873)
 1969 – Waclaw Sierpinski, Polish mathematician (b. 1882)
 1969 – Jack Kerouac, American beat novelist (b. 1922)
 1975 – Charles Reidpath, American athlete (b. 1887)
 1978 – Anastas Mikoyan, Soviet politician (b. 1895)
 1980 – Hans Asperger, Austrian psychologist who discovered Asperger's Syndrome (b. 1906).
 1980 – Vulko Cherenkov, Bulgarian politician (b. 1900)
 1984 – François Truffaut, French movie director (b. 1932)
 1985 – Dan White, American politician (b. 1946)
 1986 – Lionel Murphy, Australian Labor Party politician and High Court judge (b. 1922)
 1990 – Walther Sommerlath, German businessman, father of Queen Silvia of Sweden (b. 1901)
 1993 – Melchior Ndadaye, President of Burundi (b. 1953)
 1995 – Shannon Hoon, lead singer of pop band Blind Melon (b. 1967)
 1995 – Maxene Andrews, American singer (b. 1916)
 1995 – Jesús Blasco, Spanish comic book writer (b. 1919)
 1996 – Georgios Zoitakis, Greek army general and regent (b. 1910)
 1998 – Francis W. Sargent, Governor of Massachusetts (b. 1915)
 1999 – Lars Bo, Danish artist and writer (b. 1924)

 From 2001 
 2003 – Fred Berry, American actor (b. 1951)
 2003 – Luis A. Ferré, former governor of Puerto Rico (b. 1904)
 2003 – Louise Day Hicks, US politician (b. 1916)
 2003 – Elliott Smith, American musician (b. 1969)
 2006 – Sandy West, American musician (b. 1959)
 2010 – Loki Schmidt, German environmentalist and wife of Helmut Schmidt (b. 1919)
 2011 – Edmundo Ros, Trinidadian musician (b. 1910)
 2012 – George McGovern, American politician (b. 1922)
 2012 – Yash Chopra, Indian movie director, screenwriter and producer (b. 1932)
 2014 – Gough Whitlam, 21st Prime Minister of Australia (b. 1916)
 2014 – Benjamin C. Bradlee, American journalist (b. 1921)
 2014 – Mohammad-Reza Mahdavi Kani, Iranian politician and cleric (b. 1931)
 2014 – Seth Gaaikema, Dutch comedian and writer (b. 1939)
 2014 – Lilli Carati, Italian actress (b. 1956)
 2015 – Marty Ingels, American actor (b. 1936)
 2016 – Manfred Krug, German actor (b. 1937)
 2017 – Martin Eric Ain, American-Swiss musician (b. 1967)
 2017 – Emilio D'Amore, Italian politician (b. 1915)
 2017 – Rosemary Leach, English actress (b. 1935)
 2017 – Lech Ordon, Polish actor (b. 1928)
 2017 – Denise P. Barlow, British geneticist (b. 1950)
 2017 – Judith McGrath, Australian actress (b. 1947)
 2017 – Gilbert Stork, American organic chemist (b. 1921)
 2018 – Earl Bakken, American inventor and museum founder (b. 1924)
 2018 – Ilie Balaci, Romanian footballer and manager (b. 1956)
 2018 – Harry L. Ettlinger, American engineer (b. 1926)
 2018 – Robert Faurisson, British-French journalist, academic and Holocaust denier (b. 1929)
 2018 – Joachim Ronneberg, Norwegian military officer and broadcaster (b. 1919)
 2018 – Jun-ichi Nishizawa, Japanese electrical engineer (b. 1926)
 2018 – Charles Wang, Chinese-born American software engineer, philanthropist and sports team owner (b. 1944)
 2019 – Gilberto Aceves Navarro, Mexican painter and sculptor (b. 1931)
 2019 – Bengt Feldreich, Swedish television journalist (b. 1925)
 2019 – Taras Kutovy, Ukrainian politician (b. 1976)
 2019 – Lho Shin-yong, Prime Minister of South Korea (b. 1930)
 2019 – Aila Meriluoto, Finnish poet (b. 1924)

 Observances 
 International Day of the Nacho (Mexico and the United States)
 National Nurses' Day (Thailand)
 Overseas Chinese Day (Republic of China)
 Apple Day (UK)

Category:Days of the year