451 the first session of the council of chalcedon begins
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451 1575 years ago Selected Events October 8 5 sources

The Council of Chalcedon, a Christian ecumenical council, opened, and went on to repudiate the Eutychian doctrine of monophysitism and set forth the Chalcedonian Creed.

On October 8, in the year 451, The Council of Chalcedon, a Christian ecumenical council, opened, and went on to repudiate the Eutychian doctrine of monophysitism and set forth the Chalcedonian Creed. This event is recorded as a Selected Events event in the history of October 8, one of 430 recorded events on this date across all of history.

The Council of Chalcedon was the fourth ecumenical council of the Christian Church. It was convoked by the Roman emperor Marcian. The council convened in the city of Chalcedon, Bithynia from 8 October to 1 November 451. The council was attended by over 520 bishops or their representatives, making it the largest and best-documented of the first seven ecumenical councils. The principal purpose of the council was to re-assert the teachings of the ecumenical Council of Ephesus against the teachings of Eutyches and Nestorius. Such doctrines viewed Christ's divine and human natures as separate and distinct (Nestorianism), or viewed Christ as solely divine (monophysitism). The Council of Chalcedon issued the Chalcedonian Definition, stating that Jesus is "perfect both in deity and in humanness; this selfsame one is also actually God and actually man." The Council's judgments and definitions regarding the divine marked a significant turning point in the Christological debates.

Key Facts

  • This event took place on October 8, 451 (AD era).
  • It is categorised as a Selected Events event in recorded history.
  • Referenced in 5 Wikipedia articles.
  • Wikipedia source last updated on 20 July 2026.

On This Date in History 430

Type Year Date Event
Notable Deaths 2025 Oct 8 Miguel Ángel Russo, Argentine footballer and manager (born 1956)
Notable Deaths 2024 Oct 8 Pat Fischer, American football player (born 1940)
Notable Deaths 2024 Oct 8 Tim Johnson, American lawyer and politician (born 1946)
Notable Deaths 2024 Oct 8 Luis Tiant, Cuban baseball player (born 1940)
Historical Events 2020 Oct 8 Second Nagorno-Karabakh War: Azerbaijan twice deliberately targeted the Church of the Holy Savior Ghazanchetsots of…
Notable Deaths 2020 Oct 8 Whitey Ford, American professional baseball pitcher (born 1928)
Historical Events 2019 Oct 8 About 200 Extinction Rebellion activists block the gates of Leinster House (parliament) in the Republic of Ireland.
Selected Events 2019 Oct 8 Anti-government protests calling for free and fair elections began in Baku, Azerbaijan.
Historical Events 2016 Oct 8 In the wake of Hurricane Matthew, the death toll rises to nearly 900.
Selected Events 2016 Oct 8 Yemen War: A funeral in Sanaa was hit by two consecutive airstrikes by a Saudi-led coalition, leaving 143–155…
Notable Deaths 2015 Oct 8 Richard Davies, Welsh-English actor (born 1926)
Notable Deaths 2015 Oct 8 Jim Diamond, Scottish singer-songwriter (born 1951)
Notable Deaths 2015 Oct 8 Dennis Eichhorn, American author and illustrator (born 1945)
Notable Deaths 2015 Oct 8 Lindy Infante, American football player and coach (born 1940)
Notable Deaths 2015 Oct 8 Paul Prudhomme, American chef and author (born 1940)
Historical Events 2014 Oct 8 Thomas Eric Duncan, the first person in the United States to be diagnosed with Ebola, dies.
Notable Deaths 2014 Oct 8 Morris Lurie, Australian author and playwright (born 1938)
Notable Deaths 2014 Oct 8 Alden E. Matthews, American missionary (born 1921)
Notable Deaths 2014 Oct 8 Harden M. McConnell, American chemist and academic (born 1927)
Notable Deaths 2014 Oct 8 Zilpha Keatley Snyder, American author (born 1927)
Notable Deaths 2014 Oct 8 Jeen van den Berg, Dutch speed skater (born 1928)
Notable Deaths 2013 Oct 8 Philip Chevron, Irish singer-songwriter and guitarist (born 1957)
Notable Deaths 2013 Oct 8 Paul Desmarais, Canadian businessman and philanthropist (born 1927)
Notable Deaths 2013 Oct 8 Rod Grams, American journalist and politician (born 1948)
Notable Deaths 2013 Oct 8 Rodolphe Kasser, Swiss archaeologist and philologist (born 1927)
Notable Deaths 2013 Oct 8 Andy Pafko, American baseball player and manager (born 1921)
Notable Deaths 2013 Oct 8 Akong Rinpoche, Tibetan-Chinese spiritual leader (born 1939)
Notable Deaths 2012 Oct 8 Varsha Bhosle, Indian singer and journalist (born 1956)
Notable Deaths 2012 Oct 8 Marilou Diaz-Abaya, Filipino director, producer, and screenwriter (born 1955)
Notable Deaths 2012 Oct 8 Eric Lomax, Scottish captain and author (born 1919)
Notable Deaths 2012 Oct 8 Nawal Kishore Sharma, Indian politician, 20th Governor of Gujarat (born 1925)
Notable Deaths 2011 Oct 8 Al Davis, American football coach, general manager, and NFL team owner (born 1929)
Notable Deaths 2011 Oct 8 Mikey Welsh, American guitarist and painter (born 1971)
Notable Deaths 2011 Oct 8 Roger Williams, American pianist (born 1924)
Notable Deaths 2010 Oct 8 Frank Bourgholtzer, American journalist (born 1919)
Notable Deaths 2010 Oct 8 Eileen Crofton, British physician and author (born 1919)
Notable Deaths 2008 Oct 8 Ângelo Carvalho, Portuguese footballer (born 1925)
Notable Deaths 2008 Oct 8 Bob Friend, English journalist (born 1938)
Notable Deaths 2008 Oct 8 Eileen Herlie, Scottish-American actress (born 1918)
Notable Deaths 2008 Oct 8 George Emil Palade, Romanian-American biologist and physician, Nobel Prize laureate (born 1912)
Notable Deaths 2007 Oct 8 Constantine Andreou, Greek painter and sculptor (born 1917)
Notable Deaths 2006 Oct 8 Mark Porter, New Zealand race car driver (born 1974)
Historical Events 2005 Oct 8 The 7.6 Mw Kashmir earthquake leaves 86,000–87,351 people dead, 69,000–75,266 injured, and 2.8 million homeless.
Notable Deaths 2004 Oct 8 James Chace, American historian and author (born 1931)
Notable Births 2003 Oct 8 Ángela Aguilar, Mexican-American singer
Notable Births 2002 Oct 8 Brian Thomas Jr., American football player
Notable Births 2002 Oct 8 Zheng Qinwen, Chinese tennis player
Notable Deaths 2002 Oct 8 Phyllis Calvert, English actress (born 1915)
Notable Deaths 2002 Oct 8 Jacques Richard, Canadian ice hockey player (born 1952)
Historical Events 2001 Oct 8 A twin engine Cessna and a Scandinavian Airlines System jetliner collide in heavy fog during takeoff from Milan,…

This article draws on content from Wikipedia, available under CC BY-SA 4.0.

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