October 23
Overview
Holidays & Observances
Christianfeast day:
Feast of the Most Holy Redeemer, James the Just(i.e. James, brother of Jesus) (Lutheran,Episcopal Church (USA),Eastern Orthodox), Allucio of Campugliano, Amon of Toul(Diocese of Toul), Boethius, Ignatios of Constantinople, John of Capistrano, Joséphine Leroux, Peter Pascual, Romain (Romanus) of Rouen, Servandus and Cermanus, Severin of Cologne, October 23 (Eastern Orthodox liturgics), Christmas or the Feast of Señor Noemi (theChild Jesus) in theApostolic Catholic Church
A collection of Christian feast days observed on October 23 to honor various saints and religious celebrations across multiple denominations.
Mole Day(International observance)
A celebration of Avogadro’s number and the chemical mole unit among students and chemists each October 23.
Feast of the Most Holy Redeemer
A liturgical celebration dedicated to Christ the Redeemer observed by some Christian denominations on October 23.
James the Just(i.e. James, brother of Jesus) (Lutheran,Episcopal Church (USA),Eastern Orthodox)
Commemorates Saint James the Just, brother of Jesus, honored by Lutheran, Episcopal, and Eastern Orthodox traditions.
Allucio of Campugliano
Honors Saint Allucio of Campugliano, known for his piety and care for pilgrims in medieval Italy.
Amon of Toul(Diocese of Toul)
Remembers Saint Amon of Toul, a bishop celebrated for his leadership and missionary work in early medieval France.
Boethius
Commemorates Saint Boethius, philosopher and statesman remembered for his work The Consolation of Philosophy and his martyrdom.
Ignatios of Constantinople
Honors Saint Ignatios of Constantinople, a renowned 9th-century Patriarch celebrated for his theological leadership and pastoral care.
John of Capistrano
Celebrates Saint John of Capistrano, Franciscan friar and preacher famed for his missionary work and leadership at the Siege of Belgrade.
Events
James Ussher's purported creation date of the world according to the Bible.
James Ussher calculates that the world was created on October 23, 4004 BC, based on his interpretation of biblical chronology.
Liberators' civil war: Mark Antony and Octavian decisively defeat an army under Brutus in the second part of the Battle of Philippi, with Brutus committing suicide and ending the civil war.
Mark Antony and Octavian defeat Brutus’s forces at Philippi, leading to Brutus’s suicide and the end of the Liberators’ civil war.
Valentinian III is elevated as Roman emperor at the age of six.
Six-year-old Valentinian III is proclaimed Western Roman Emperor, beginning a reign dominated by regents and court intrigue.
The Synodus Palmaris, called by Gothic king Theoderic, absolves Pope Symmachus of all charges, thus ending the schism of Antipope Laurentius.
The Synodus Palmaris, convened by King Theoderic, clears Pope Symmachus of all charges and ends the schism with Antipope Laurentius.
Spanish Reconquista: At the Battle of Sagrajas, the Almoravids defeats the Castilians, but are unable to take advantage of their victory.
Almoravid forces defeat the Castilian army at the Battle of Sagrajas, stalling the Christian Reconquista in Iberia.
The Battle of Grathe Heath ends the Danish Civil War.
Royalist forces defeat the supporters of rival claimants at the Battle of Grathe Heath, ending Denmark’s civil war.
The first treaty forming the Auld Alliance between Scotland and France against England is signed in Paris.
Scotland and France sign the first Auld Alliance in Paris to unite against English aggression.
Irish Catholic gentry from Ulster attempt to seize control of Dublin Castle, the seat of English rule in Ireland, so as to force concessions.
Ulster’s Irish Catholic gentry attempt to seize Dublin Castle in a bold bid to force English concessions.
The Battle of Edgehill is the first major battle of the English Civil War.
Royalist and Parliamentarian armies meet at Edgehill in the first major battle of the English Civil War.
Births
Wen Yanbo
Wen Yanbo was a Song Dynasty grand chancellor renowned for his integrity and administrative reforms.
Ferdinand de la Cerda
Ferdinand de la Cerda was the eldest son of King Alfonso X of Castile and heir to the Castilian throne.
Ignatius of Loyola
Spanish Basque priest who founded the Society of Jesus and became a leading figure of the Counter-Reformation.
Charlotte of Valois
French princess of the Valois dynasty, daughter of King Francis I and Queen Claude of France.
Hedwig Eleonora of Holstein-Gottorp
Queen consort of Sweden and regent for her son King Charles XI, influential in 17th-century Swedish politics.
Johann Bernhard Staudt
Austrian Baroque composer known for his sacred music and service to the Jesuit order.
Ange-Jacques Gabriel
Prominent French Neoclassical architect, chief architect to King Louis XV, known for the École Militaire and Place de la Concorde.
Maximilian Ulysses Browne
Irish-born Austrian field marshal who led Habsburg forces during the War of Austrian Succession and the Seven Years’ War.
Pieter Burman the Younger
Dutch classical scholar, philologist, and poet famed for his critical editions of Latin authors.
Deaths
Marcus Junius Brutus the Younger
Roman politician and military leader. One of the chief conspirators in the assassination of Julius Caesar.
Ignatios of Constantinople
Byzantine patriarch and theologian. Led the church through political conflicts and schisms.
Yazaman al-Khadim
Abbasid general and statesman. Noted for his military campaigns and political influence.
Ibrahim II of Ifriqiya
Aghlabid emir of Ifriqiya. Renowned for his cultural patronage and architectural projects.
Daigo
60th emperor of Japan. Presided over a flourishing Heian court and worked to limit clan power.
Hyejong of Goryeo
Second king of the Goryeo dynasty. Worked to centralize royal authority.
Yōzei
57th emperor of Japan. Remembered for his turbulent reign and forced abdication.
Abu al-Salt
Andalusian polymath. Celebrated for his contributions to mathematics, astronomy, medicine, and philosophy.
Sweyn III
Danish king. His contested reign was marked by civil war and dynastic rivalry.