Events That Happened on October 20

Liz Truss steps down as British Prime Minister and leader of the Conservative Party amid the country's political crisis, serving for the least time of any British Prime Minister [49 days].

Syrian civil war: The Syrian Democratic Forces (SDF) declare victory in the Raqqa campaign.

Libyan Crisis: Rebel forces capture Libyan dictator Muammar Gaddafi and his son Mutassim in his hometown of Sirte and kill him shortly thereafter, ending the first Libyan civil war.

The general conference of the United Nations Educational, Scientific and Cultural Organization (UNESCO) passes the Convention on the Protection and Promotion of the Diversity of Cultural Expressions.

The Sloan Great Wall, once the largest cosmic structures known to humanity, is discovered by students at Princeton University.

Top Gear, the revived popular British TV motoring magazine, premieres on BBC.

Space Shuttle Columbia launches on STS-73.

A 6.8 Mw earthquake strikes the Uttarkashi region of India, killing more than 1,000 people.

A massive firestorm breaks out in the hills of Oakland and Berkeley, California killing 25 people and destroying more than 3,000 homes, apartments and condominiums.

Aeroflot Flight 6502 crashes while landing at Kuibyshev Airport (now Kuromoch International Airport) in Kuibyshev (now present-day Samara, Russia), killing 70 people.

During the UEFA Cup match between FC Spartak Moscow and HFC Haarlem, 66 people are crushed to death in the Luzhniki disaster.

Two police officers and a Brink's armored car guard are killed during an armed robbery carried out by members of the Black Liberation Army and Weather Underground in Nanuet, New York.

A plane carrying the rock band Lynyrd Skynyrd crashes in woodland in Mississippi, United States. Six people, including three band members, are killed.

The Luling–Destrehan Ferry MV George Prince is struck by the Norwegian freighter SS Frosta while crossing the Mississippi River in St. Charles Parish, Louisiana. Seventy-eight passengers and crew die, and only 18 people aboard the ferry survive.

Watergate scandal: "Saturday Night Massacre": United States President Richard Nixon fires U.S. Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus after they refuse to fire special prosecutor Archibald Cox, who is finally fired by Solicitor General Robert Bork.

The Sydney Opera House is opened by Elizabeth II after 14 years of construction.

China launches simultaneous offensives in Ladakh and across the McMahon Line, igniting the Sino-Indian War.

The Soviet Navy performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.

The Governor of Kenya Evelyn Baring declares a state of emergency and begins arresting hundreds of suspected leaders of the Mau Mau Uprising.

The "Johnny Bright incident" occurs during a football game between the Drake Bulldogs and Oklahoma A&M Aggies.

A KLM Lockheed L-049 Constellation crashes on approach to Glasgow Prestwick Airport, killing 40.

Cold War: The House Un-American Activities Committee begins its investigation into Communist infiltration of the Hollywood film industry, resulting in a blacklist that prevents some from working in the industry for years.

World War II: The Soviet Red Army and Yugoslav Partisans liberate Belgrade.

Liquefied natural gas leaks from storage tanks in Cleveland and then explodes, leveling 30 blocks and killing 130 people.

American general Douglas MacArthur fulfills his promise to return to the Philippines when he comes ashore during the Battle of Leyte.

World War II: Thousands of civilians in German-occupied Serbia are murdered in the Kragujevac massacre.

The Long March, a mammoth retreat undertaken by the armed forces of the Chinese Communist Party a year prior, ends.

British ocean liner RMS Olympic is launched.

Chile and Bolivia sign the Treaty of Peace and Friendship, delimiting the border between the two countries.

Peru and Chile sign the Treaty of Ancón, by which the Tarapacá province is ceded to the latter, bringing an end to Peru's involvement in the War of the Pacific.

Greek War of Independence: In the Battle of Navarino, a combined Turkish and Egyptian fleet is defeated by British, French and Russian naval forces in the last significant battle fought with wooden sailing ships.

The Convention of 1818 is signed between the United States and the United Kingdom, which settles the Canada–United States border on the 49th parallel for most of its length.

The United States Senate ratifies the Louisiana Purchase.

The Patent of Toleration, providing limited freedom of worship, is approved in Austria.

American Revolution: The Continental Association, a nonconsumption and nonimportation agreement against the British Isles and the British West Indies, is adopted by the First Continental Congress.

France, Prussia, Bavaria and Saxony refuse to honour the Pragmatic Sanction, and the War of the Austrian Succession begins.

Eighty Years' War: Three thousand Spanish soldiers wade through fifteen miles of water in one night to effect the relief of Goes.

The Spanish Duke of Alba defeats a Dutch rebel force under William the Silent.

Carney Chukwuemeka, English footballer

Paige Bueckers, American basketball player

Kenneth Walker III, American football player

Chuu, South Korean singer and television personality

YoungBoy Never Broke Again, American rapper

Jordan Ridley, Australian rules footballer

Ademola Lookman, Nigerian footballer

Andrey Rublev, Russian tennis player

Anthony Sinisuka Ginting, Indonesian badminton player

Humberto Carrillo, Mexican wrestler

Rodney Hood, American basketball player

Ksenia Semyonova, Russian gymnast

Kyle Wiltjer, Canadian-American basketball player

Ferhat Yazgan, Turkish footballer

Sam Mataora, Cook Islands rugby league player

Jamie Collins, American football player

Jess Glynne, English singer-songwriter

ASAP Ferg, American rapper

Candice Swanepoel, South African supermodel and philanthropist

Raphael Hackl, German rugby player

Marie Sophie Hingst, German historian and blogger who falsely claimed to be descended from Holocaust survivors

Wanlop Saechio, Thai footballer

Elyse Taylor, Australian model

Jennifer Freeman, American actress

Dominic McGuire, American basketball player

Alphonso Smith, American football player

James Sutton, English race car driver

Mitch Lucker, American singer-songwriter (died 2012)

Florent Sinama Pongolle, French footballer

Andrew Trimble, Irish rugby player

Flavio Cipolla, Italian tennis player

Luis Saritama, Ecuadorian footballer

Alona Tal, Israeli actress

Michel Vorm, Dutch footballer

Kristian Bach Bak, Danish footballer

Becky Brewerton, Welsh golfer

Katie Featherston, American actress

Lawrence Roberts, American basketball player

Dimitris Papadopoulos, Greek footballer

Francisco Javier Rodríguez, Mexican footballer

Chad Robinson, Australian rugby league player (died 2016)

José Veras, Dominican baseball player

Vasyl Baranov, Ukrainian footballer

Paul Ifill, English footballer

John Krasinski, American actor, director, and producer

Paul O'Connell, Irish rugby player

Paul Terek, American decathlete

Virender Sehwag, Indian cricketer

Paul Wilson, Scottish bass player and songwriter

Matt Jansen, English footballer and manager

Leila Josefowicz, Canadian-American violinist

Erko Saviauk, Estonian footballer

Sam Witwer, American actor and musician

Nikolaos Bacharidis, Greek footballer

Dan Fogler, American actor, director, producer, and screenwriter

Nicola Legrottaglie, Italian footballer and manager

Ed Hale, American singer-songwriter, writer and socio-political activist

Limmy, Scottish comedian and writer

Bashar Rahal, Emirati-American actor and producer

Pie Geelen, Dutch swimmer

Will Greenwood, English rugby player and sportscaster

Brian Schatz, American academic and politician, 11th Lieutenant Governor of Hawaii

Kenneth Choi, American actor

Snoop Dogg, American rapper, producer, and actor

Eddie Jones, American basketball player

Kamiel Maase, Dutch runner

Dannii Minogue, Australian singer-songwriter and actress

Sander Boschker, Dutch footballer

Neil Heywood, English-Chinese businessman (died 2011)

Aapo Ilves, Estonian poet and illustrator

Michelle Malkin, American blogger and author

Taj McWilliams-Franklin, American basketball player

Laurie Daley, Australian rugby league player and coach

Juan González, Puerto Rican baseball player

Labros Papakostas, Greek high jumper

Susan Tully, English actress, director, and producer

Elizabeth Carling, English actress and singer

Kerrod Walters, Australian rugby league player

Kevin Walters, Australian rugby league player and coach

Allan Donald, South African cricketer and coach

Patrick Volkerding, American computer scientist and engineer, founded Slackware

Norman Blake, Scottish singer-songwriter and guitarist

Jonathan I. Schwartz, American businessman

Mikhail Shtalenkov, Russian ice hockey player

William Zabka, American actor and producer

Kamala Harris, American politician and lawyer, 49th Vice President of the United States

Tomoko Yamaguchi, Japanese actress and singer

Julie Payette, Canadian engineer, astronaut, and 29th Governor General of Canada

Nikos Tsiantakis, Greek footballer

Stan Valckx, Dutch footballer and manager

David M. Evans, American director and screenwriter

Dave Wong, Hong Kong-Taiwanese singer-songwriter and actor

Audun Kleive, Norwegian drummer and composer

Kate Mosse, English author and playwright

Ian Rush, Welsh footballer and manager

Les Stroud, Canadian director, producer, and harmonica player

Michie Tomizawa, Japanese voice actress and singer

Konstantin Aseev, Russian chess player and trainer (died 2004)

Mark Little, Australian comedian, actor, and screenwriter

Valerie Faris, American director and producer

Lynn Flewelling, American author and academic

Scott Hall, American wrestler (died 2022)

Mark King, English singer-songwriter and bass player

Dave Krieg, American football player

Viggo Mortensen, American-Danish actor and producer

Jane Bonham-Carter, Baroness Bonham-Carter of Yarnbury, English politician

Chris Cowdrey, English cricketer and sportscaster

Hilda Solis, American academic and politician, 25th United States Secretary of Labor

Danny Boyle, English director, producer, and screenwriter

Martin Taylor, English guitarist

Thomas Newman, American composer and conductor

David Profumo, English author and academic

Aaron Pryor, American boxer (died 2016)

Sheldon Whitehouse, American politician

Steve Orich, American composer and conductor

Keith Hernandez, American baseball player and sportscaster

Richard McWilliam, American businessman and philanthropist, co-founded the Upper Deck Company (died 2013)

Bill Nunn, American actor (died 2016)

Melanie Mayron, American actress and director

Derek Ridgers, English photographer and art director

Wilma Salgado, Ecuadorian politician and economist

Al Greenwood, American keyboard player

Patrick Hall, English lawyer and politician

Ken Ham, Australian-American evangelist

Leif Pagrotsky, Swedish businessman and politician

Claudio Ranieri, Italian footballer and manager

Tom Petty, American singer-songwriter, guitarist, and producer (died 2017)

William Russ, American actor and director

Chris Cannon, American politician (died 2024)

Valeriy Borzov, Ukrainian-Russian sprinter

Peter Combe, Australian entertainer

Sandra Dickinson, American-English actress and composer

Piet Hein Donner, Dutch jurist and politician, Dutch Minister of Justice

Melih Gökçek, Turkish journalist and politician, Mayor of Ankara

Diana Gittins, American-English sociologist, author, and academic

Lewis Grizzard, American comedian and author (died 1994)

Elfriede Jelinek, Austrian author and playwright, Nobel Prize laureate

Richard Loncraine, English director and screenwriter

Lucien Van Impe, Belgian cyclist

Chris Woodhead, English civil servant and academic (died 2015)

Ric Lee, English drummer

Nalin de Silva, Sri Lankan physicist and philosopher (died 2024)

David Mancuso, American party planner, created The Loft (died 2016)

Dunja Vejzović, Croatian soprano and actress

Earl Hindman, American actor (died 2003)

Christiane Nüsslein-Volhard, German biologist and geneticist, Nobel Prize laureate

Bart Zoet, Dutch cyclist (died 1992)

Anneke Wills, English actress

Jean-Pierre Dikongué Pipa, Cameroonian filmmaker

Kathy Kirby, English singer (died 2011)

Robert Pinsky, American poet and critic

Patrick Hughes, English painter, illustrator, and photographer

Emidio Greco, Italian director and screenwriter (died 2012)

Dolores Hart, American actress and nun

Iain Macmillan, Scottish photographer and educator (died 2006)

Cancio Garcia, Filipino lawyer and jurist (died 2013)

Wanda Jackson, American singer-songwriter and guitarist

Juan Marichal, Dominican baseball player and sportscaster

Emma Tennant, English author (died 2017)

Jerry Orbach, American actor and singer (died 2004)

Bill Chase, American trumpet player (died 1974)

Eddie Harris, American saxophonist (died 1996)

Timothy West, English actor (died 2024)

Barrie Chase, American actress and dancer

Rosey Brown, American football player and coach (died 2004)

William Christopher, American actor and singer (died 2016)

Rokurō Naya, Japanese voice actor (died 2014)

Richard Caliguiri, American lawyer and politician, 54th Mayor of Pittsburgh (died 1988)

Mickey Mantle, American baseball player and sportscaster (died 1995)

Ken Morrison, English businessman (died 2017)

Michael O'Donnell, English physician, author, and journalist (died 2019)

Joyce Brothers, American psychologist, author, and actress (died 2013)

Gunturu Seshendra Sarma, Indian poet and critic (died 2007)

Edward Douglas-Scott-Montagu, 3rd Baron Montagu of Beaulieu, English lieutenant and politician, founded the National Motor Museum (died 2015)

Art Buchwald, American soldier and journalist (died 2007)

Tom Dowd, American record producer and engineer (died 2002)

Roger Hanin, Algerian-French actor, director, and screenwriter (died 2015)

András Bíró, Hungarian journalist and human rights activist (died 2024)

Robert Peters, American poet, playwright, and critic (died 2014)

Robert Craft, American conductor and musicologist (died 2015)

John Anderson, American actor (died 1992)

Franco Ventriglia, American opera singer (died 2012)

Manny Ayulo, American race car driver (died 1955)

Hans Warren, Dutch poet and author (died 2001)

Nick Cardy, American illustrator (died 2013)

Fanny de Sivers, Estonian-French linguist and academic (died 2011)

Janet Jagan, 6th President of Guyana (died 2009)

Siddhartha Shankar Ray, Indian lawyer and politician, Chief Minister of West Bengal (died 2010)

Tracy Hall, American chemist and academic (died 2008)

Martin Drewes, German soldier and pilot (died 2013)

Robert Lochner, American-German soldier and journalist (died 2003)

Stéphane Hessel, German-French activist and diplomat (died 2013)

Ants Kaljurand, Estonian anti-communist, freedom fighter and forest brother (died 1951)

Jean-Pierre Melville, French actor, director, producer, and screenwriter (died 1973)

Fayard Nicholas, American actor, dancer, and choreographer (died 2006)

Grandpa Jones, American singer-songwriter and banjo player (died 1998)

Ruhi Su, Turkish singer-songwriter (died 1985)

Chen Liting, Chinese director and playwright (died 2013)

Carla Laemmle, American actress and photographer (died 2014)

Yasushi Sugiyama, Japanese painter (died 1993)

Stuart Hamblen, American singer-songwriter, actor, and radio show host (died 1989)

Arlene Francis, American actress and television personality (died 2001)

Tommy Douglas, Scottish-Canadian minister and politician, 7th Premier of Saskatchewan (died 1986)

Enolia McMillan, American educator and activist (died 2006)

Anna Neagle, English actress, singer, and producer (died 1986)

Frank Churchill, American film composer (died 1942)

Adelaide Hall, American-English singer, actress, and dancer (died 1993)

Ismail al-Azhari, Sudanese politician, 3rd President of Sudan (died 1969)

Wayne Morse, American lieutenant, lawyer, and politician (died 1974)

Yi Un, South Korean general (died 1970)

Rex Ingram, American actor (died 1969)

Morrie Ryskind, American writer/director (died 1985)

Olive Thomas, American model and actress (died 1920)

Charley Chase, American actor, director, and screenwriter (died 1940)

Samuel Flagg Bemis, American historian and author (died 1973)

James Chadwick, English physicist and academic, Nobel Prize laureate (died 1974)

Aleksander Maaker, Estonian bagpipe player (died 1968)

Johann Gruber, Austrian priest and saint (died 1944)

Prince Yasuhiko Asaka of Japan (died 1981)

Karl Probst, American engineer (died 1963)

Margaret Dumont, American actress (died 1965)

Bela Lugosi, Hungarian-American actor (died 1956)

Alfred Gwynne Vanderbilt, American businessman (died 1915)

Charles Ives, American composer (died 1954)

Nellie McClung, Canadian author and suffragist (died 1951)

Jussi Merinen, Finnish politician (died 1918)

James F. Hinkle, American banker and politician, 6th Governor of New Mexico (died 1951)

John Dewey, American psychologist and philosopher (died 1952)

John Burns, English union leader and politician, President of the Board of Trade (died 1943)

Arthur Rimbaud, French soldier and poet (died 1891)

Frits Thaulow, Norwegian painter (died 1906)

Constantin Lipsius, German architect and theorist (died 1894)

Thomas Hughes, English lawyer and judge (died 1896)

Báb, Iranian religious leader, founded Bábism (died 1850)

Karl Andree, German geographer and journalist (died 1875)

Melchior Berri, Swiss architect and educator, designed the Natural History Museum of Basel (died 1854)

Patrick Matthew. Scottish farmer and biologist (died 1874)

George Ormerod, English historian and author (died 1873)

Henry John Temple, 3rd Viscount Palmerston, English academic and politician, Prime Minister of the United Kingdom (died 1865)

Pauline Bonaparte, French sister of Napoleon (died 1825)

Chauncey Goodrich, American lawyer and politician, 8th Lieutenant Governor of Connecticut (died 1815)

Isabelle de Charrière, Dutch author and poet (died 1805)

Gottfried Achenwall, German historian, economist, and jurist (died 1772)

Catherine Gordon, Duchess of Gordon, Scottish aristocrat (died 1779)

Timothy Ruggles, American lawyer, jurist, and politician, (died 1795)

Samuel von Cocceji, Prussian jurist and statesman (died 1755)

Stanisław Leszczyński, King of Poland (died 1766)

Robert Bertie, 1st Duke of Ancaster and Kesteven, English politician, Chancellor of the Duchy of Lancaster (died 1723)

Edward Hungerford, English politician (died 1711)

Aelbert Cuyp, Dutch painter (died 1691)

Thomas Bartholin, Danish physician, mathematician, and theologian (died 1680)

Richard Boyle, 1st Earl of Burlington, Anglo-Irish nobleman, Lord High Treasurer of Ireland, Cavalier (died 1698)

Bálint Balassi, Hungarian writer and noble (died 1594)

Claude, Duke of Guise (died 1550)

Giovanni di Bernardo Rucellai, Italian poet and playwright (died 1525)

Zhu Youzhen, emperor of Later Liang (died 923)

Barbara Dane, American folk, blues and jazz singer (born 1927)

Fethullah Gülen, Turkish preacher and theologian (born 1941)

Walter Jacob, American Reform rabbi (born 1930)

Janusz Olejniczak, Polish classical pianist and actor (born 1952)

Paul White, Baron Hanningfield, British life peer (born 1940)

Lucy Simon, American composer and songwriter (born 1940)

James Randi, Canadian-American stage magician and author (born 1928)

Wim Kok, Dutch prime minister (born 1938)

Robert E. Kramek, former United States Coast Guard admiral (born 1939)

Michael Massee, American actor (born 1952)

Junko Tabei, Japanese mountaineer (born 1939)

Makis Dendrinos, Greek basketball player and coach (born 1950)

Arno Gruen, German-Swiss psychologist and psychoanalyst (born 1923)

Kazimierz Łaski, Polish-Austrian economist and academic (born 1921)

Michael Meacher, English academic and politician, Secretary of State for the Environment, Transport and the Regions (born 1939)

Ian Steel, Scottish cyclist and manager (born 1928)

René Burri, Swiss photographer and journalist (born 1933)

Oscar de la Renta, Dominican-American fashion designer (born 1932)

Christophe de Margerie, French businessman (born 1951)

Jovanka Broz, Croatian-Serbian colonel (born 1924)

Don James, American football player and coach (born 1932)

Lawrence Klein, American economist and academic, Nobel Prize laureate (born 1920)

Joginder Singh, Kenyan race car driver (born 1932)

Larri Thomas, American actress and dancer (born 1932)

Sid Yudain, American journalist, founded Roll Call (born 1923)

Przemysław Gintrowski, Polish poet and composer (born 1951)

Paul Kurtz, American philosopher and academic (born 1925)

Dave May, American baseball player (born 1943)

John McConnell, American activist, created Earth Day (born 1915)

E. Donnall Thomas, American physician and academic, Nobel Prize laureate (born 1920)

Raymond Watson, American businessman (born 1926)

Muammar Gaddafi, Libyan colonel and politician, Prime Minister of Libya (born 1942)

Mutassim Gaddafi, Libyan colonel (born 1974)

Abu-Bakr Yunis Jabr, Libyan politician (born 1942)

Iztok Puc, Croatian-Slovenian handball player (born 1966)

W. Cary Edwards, American politician (born 1944)

Bob Guccione, American publisher, founded Penthouse magazine (born 1930)

Eva Ibbotson, Austrian-English author (born 1925)

Max Kohnstamm, Dutch historian and diplomat (born 1914)

Farooq Leghari, Pakistani politician, 8th President of Pakistan (born 1940)

Gene Hickerson, American football player (born 1935)

Max McGee, American football player and sportscaster (born 1932)

Arnold Viiding, Estonian shot putter and discus thrower (born 1911)

Jane Wyatt, American actress (born 1910)

Shirley Horn, American singer and pianist (born 1934)

Eva Švankmajerová, Czech painter and poet (born 1940)

André van der Louw, Dutch lawyer and politician, 16th Mayor of Rotterdam (born 1933)

Anthony Hecht, American poet and educator (born 1923)

Chuck Hiller, American baseball player, coach, and manager (born 1934)

Jack Elam, American actor (born 1918)

Ted Ammon, American financier and banker (born 1949)

Calvin Griffith, Canadian-American businessman (born 1911)

Jack Lynch, Irish footballer, lawyer, and politician, 5th Taoiseach of Ireland (born 1917)

Christopher Stone, American actor, director, and screenwriter (born 1942)

John Tonkin, Australian politician, 20th Premier of Western Australia (born 1902)

Burt Lancaster, American actor (born 1913)

Yasushi Sugiyama, Japanese painter (born 1909)

Werner Torkanowsky, German-American conductor (born 1926)

Joel McCrea, American actor (born 1905)

Anthony Quayle, English actor and director (born 1913)

Sheila Scott, English pilot and author (born 1922)

Andrey Kolmogorov, Russian mathematician and academic (born 1903)

Carl Ferdinand Cori, Czech-American biochemist and pharmacologist, Nobel Prize laureate (born 1896)

Paul Dirac, English-American physicist and mathematician, Nobel Prize laureate (born 1902)

Yves Thériault, Canadian author (born 1915)

Merle Travis, American singer-songwriter and guitarist (born 1917)

Gunnar Nilsson, Swedish race car driver (born 1948)

Steve Gaines, American guitarist (born 1949)

Ronnie Van Zant, American singer-songwriter (born 1948)

Harlow Shapley, American astronomer and academic (born 1885)

Bud Flanagan, English actor and screenwriter (born 1896)

Shigeru Yoshida, Japanese politician and diplomat, 32nd Prime Minister of Japan (born 1878)

Herbert Hoover, American engineer and politician, 31st President of the United States (born 1874)

Michalis Dorizas, Greek-American javelin thrower and football player (born 1890)

Lawrence Dale Bell, American industrialist and founder of Bell Aircraft Corporation (born 1894)

Werner Baumbach, German colonel and pilot (born 1916)

Henry L. Stimson, American colonel, lawyer, and politician, 46th United States Secretary of State (born 1867)

Ken Farnes, English cricketer and soldier (born 1911)

Gunnar Asplund, Swedish architect and academic, co-designed Skogskyrkogården (born 1885)

Anne Sullivan, American educator (born 1866)

Arthur Henderson, Scottish-English politician, Secretary of State for Foreign Affairs, Nobel Prize laureate (born 1863)

Jack Peddie, Scottish footballer (born 1876)

Eugene V. Debs, American union leader and politician (born 1855)

David B. Hill, American lawyer and politician, 29th Governor of New York (born 1843)

Vaiben Louis Solomon, Australian politician, 21st Premier of South Australia (born 1853)

Naim Frashëri, Albanian poet and translator (born 1846)

James Anthony Froude, English historian, novelist, biographer and editor (born 1818)

Richard Francis Burton, English-Italian geographer and explorer (born 1821)

George Chichester, 3rd Marquess of Donegall (born 1797)

Lydia Maria Child, American journalist, author, and activist (born 1802)

Karl Christian Ulmann, Latvian-German theologian and academic (born 1793)

Michael William Balfe, Irish violinist and composer (born 1808)

Champ Ferguson, American guerrilla leader (born 1821)

Charles VI, Holy Roman Emperor (born 1685)

Archibald Pitcairne, Scottish physician and academic (born 1652)

Antonio Coello, Spanish poet and playwright (born 1611)

John Ball, English clergyman and theologian (born 1585)

Walter Leveson, Elizabethan member of parliament, Shropshire landowner (born 1550)

João de Barros, Portuguese historian and author (born 1496)

Francesco Maria I della Rovere, Duke of Urbino, condottiero (born 1490)

Thomas Linacre, English physician and scholar (born 1460)

Ambrose the Camaldulian, Italian theologian

Jacopo della Quercia, Sienese sculptor (born c. 1374)

Henry Bowet, Archbishop of York

Klaus Störtebeker, German pirate

Teresa d'Entença, Countess of Urgell (born 1300)

Pope Urban III

Henry X, Duke of Bavaria (born 1108)

Ralph d'Escures, archbishop of Canterbury

Li Yixing, Chinese governor

Aelia Eudocia, Byzantine wife of Theodosius II (born 401)

Christian feast days: Acca of Hexham

Christian feast days: Aderald

Christian feast days: Artemius

Christian feast days: Caprasius of Agen

Christian feast days: Hedwig (in Canada, moved from Oct. 16)

Christian feast days: Irene of Tomar

Christian feast days: Magdalene of Nagasaki

Christian feast days: Margaret Marie Alacoque (in Canada, moved from Oct. 16)

Christian feast days: Paul of the Cross (in USA, moved from Oct. 19)

Christian feast days: Maria Bertilla Boscardin

Christian feast days: Mater Admirabilis

Christian feast days: October 20 (Eastern Orthodox liturgics)

Arbor Day (Czech Republic)

Heroes' Day (Kenya)

Revolution Day (Guatemala), one of the two Patriotic Days (Guatemala)

Vietnamese Women's Day (Vietnam)

World Osteoporosis Day

World Statistics Day