October 23 is the 296th day of the Gregorian Calendar ( 297th in leap years), thus 69 days remain until the end of the year.
- 3.1 Before the 19th century
- 3.2 19th century
- 3.3 20th century
- 3.4 21st century
Politics and World Affairs
- 0042 BC: In the battle of Philippi, the armies of Caesar assassins Brutus and Cassius are subject to the associations of the triumvirate with Octavian and Mark Antony.
- 0424: The first five years of Flavius Placidus Valentinian levied at Constantinople Opel to Caesar.
- 0425: With the proclamation of Valentinian III. Emperor of Western Rome by the Eastern Roman Emperor Theodosius II 's mother Galla Placidia takes over the government.
- 1086: In the Battle of Zallaqa the army of the Almoravids under Yusuf ibn proposes Tashfin the Castilian knight army under Alfonso VI. devastating. As a result, the Almoravids conquer the Taifa kingdoms of Andalusia.
- 1295: In Paris, a contract is signed, which is the first written evidence of the Auld Alliance. The kings John Balliol and Philip IV reaffirm the alliance between Scotland and France.
- 1520: In the Aachen Cathedral, Charles V was crowned Holy Roman king.
Science and Technology
- 2003: In Los Angeles, built by architect Frank Gehry, Walt Disney Concert Hall is opened.
- 2005: The Turkish author Orhan Pamuk received the Peace Prize of the German Book Trade.
- 4004 BC: Creation Faith: Calculations by the Anglican theologian James Ussher, the universe of God is on this day created.
- 0585: The Synod of Mâcon explains the previously voluntary tithe mandatory.
- 1988: Niels Stensen, Latin Nicolaus Steno, a Danish priest and bishop beatified by Pope John Paul II.
- 1996: Pope John Paul II accepted the compatibility between Theis Phonetic evolution and Darwinian theory of evolution in the Christian faith with the remark that we are dealing with more than just a hypothesis with her.
Minor accidents are listed in the sub- items of disaster.
Entries of Athletics world records are located under the respective discipline under Athletics.
Before the 19th century
Before the 19th century
- 042 BC: Marcus Junius Brutus, Roman Senator, Caesar's murderers
- 0930: Daigo, Japanese Emperor
- 1157: . Sven III, King of Denmark
- 1425: Jordan Pleskow, Mayor of Lübeck
- 1456: John Capistrano, Italian itinerant preacher
- 1590: Bernardino de Sahagún, Spanish Franciscans and ethnologist
- 1616: Leonhard Hutter, German theologian
- 1635: Wilhelm Schickard, German astronomer and mathematician
- 1692: Alexander von Spaen, kurbrandenburgischer Field Marshal
- 1714: Philip of Hörnigk, Austrian economist, mercantilist and Camera List
- 1782: Joseph Riepel, German music theorist, composer and violinist
- 1788: Karl Gottlob Clausnitzer, German theologian
- 2001: Gerd flour, German journalist
- 2002: Marianne Hoppe, German actress
- 2003: Lloyd Arthur Eshbach, American writer and editor
- 2003: Chiang Mei -Ling, Chinese politician
- 2004: Robert Merrill, American opera singer
- 2004: Friedel Neuber, German banker and politician
- 2004: Bill Nicholson, a British soccer coach
- 2004: George Silk, New Zealand Photographer
- 2007: George L. Hersey, American art and architecture historian
- 2008: Rolf Andresen, German sports official
- 2009: Ferdinand Dux, German actor
- 2009: Walter Fürst, German jurist, president of the Federal Administrative Court
- 2011: Jean Marius Amadou, French singer and humorist
- 2010: Vince Banonis, U.S. American football player
- 2011: John McCarthy, American logician and computer scientist
- 2011: Marco Simoncelli, Italian motorcycle racer
- 2011: Karl Heinz Spilker, German politician, Member of Parliament
- 2012: Wilhelm Brasse, Polish photographer
- 2013: Anthony Caro, British sculptor
Holidays and observances
- Religious observances St. James the Just, one of the leaders of the Jerusalem church and martyrs (Orthodox, Armenian, Protestant: ELCA, LCMS )
- John Zwick, German pastor and hymn writer ( Protestant)
- St. John of Capistrano, Italian itinerant preacher and military leader, patron saint and inquisitor ( Catholic)
- St. Severin of Cologne, bishop and patron saint ( Catholic)
- Name Days John
- State Holidays and observances Hungary: Hungarian national uprising (since 1989)
More entries contains the list of commemorative and Action days.
- Day in October