Wikipedia:Selected anniversaries/April 23

This is a list of selected April 23 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.

Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.

To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.

← April 22	April 24 →

Staging area

Images

Use only ONE image at a time

• 
  Skanderbeg
• 
  Charles de Gaulle
• 
  Hank Aaron
• 
  Hank Aaron
• 
  Hall of the Grand National Assembly of Turkey
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  The Golden Dome at the University of Notre Dame, built following the 1879 fire
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  The Main Administration Building of the University of Notre Dame, which burned down on April 21, 1879
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  William Rowan Hamilton
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  Jan Brewer
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  Can of New Coke
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  ZX Spectrum
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  Medal depicting Charles II
• 
  1927 FA Cup programme

Ineligible

Blurb	Reason
World Book Day;	refimprove
Saint George's Day in various countries;	refimprove section
1827 – Irish mathematician and physicist William Rowan Hamilton presented his Theory of Systems of Rays.	refimprove section
1879 – A fire destroyed the second version of the Main Building of the University of Notre Dame, one of the oldest Catholic universities in the United States.	incomplete citations/page numbers missing
1923 – Gdynia was inaugurated as a Polish seaport on the coast of Gdańsk Bay, a southwestern bay of the Baltic Sea.	expansion
1935 – Poland adopted a new constitution, introducing a presidential system with certain elements of authoritarianism.	Stubby, no footnotes
1961 – In the midst of the Algerian War, French President Charles de Gaulle delivered a televised speech calling on military personnel and civilians to oppose a coup d'état attempt against him.	refimprove section
1968 – Students protesting the Vietnam War at Columbia University in New York City took over administration buildings and shut down the university.	neutrality issues, refimprove section
1982 – The ZX Spectrum (pictured), Britain's best-selling microcomputer, was released.	Lots of uncited material
1982 – The city of Key West, Florida, facetiously declared independence from the United States to protest a United States Border Patrol roadblock and inspection point along U.S. Route 1, the main road into the city.	refimprove section
* 1516 – The best-known version of the Reinheitsgebot, a German law on the purity of beer, was adopted in Bavaria.	Number of uncited parts
* 1016 – Edmund Ironside became King of England, reigning for only seven months before the country was conquered by Cnut the Great.	Section tagged for referencing
* 1985 – The Coca-Cola Company replaced its flagship soft drink, Coca-Cola, with "New Coke", which generated so much negative response that the company put the previous formula back on the market less than three months later.	Citations needed
Shirley Temple |b|1928	tag

Eligible

• 1348 – The first knights of the Order of the Garter, an order of chivalry founded by King Edward III of England, were appointed.
• 1467 – Albanian commander Skanderbeg entered Krujë, breaking a 10-month siege by Ottoman forces.
• 1661 – Charles II was crowned King of England, Scotland and Ireland at Westminster Abbey.
• 1724 – Johann Sebastian Bach leads the first performance of his cantata Du Hirte Israel, höre, BWV 104, illustrating the topic of the Good Shepherd in pastoral music.
• 1891 – Chilean Civil War: The armored frigate Blanco Encalada was sunk at the Battle of Caldera Bay, the first ironclad warship lost to a self-propelled torpedo.
• 1918 – First World War: The British Royal Navy launched unsuccessful raids on Ostend and Zeebrugge in German-occupied Belgium.
• 1920 – The Grand National Assembly of Turkey, the country's unicameral legislature, first met in Ankara in the midst of the Turkish War of Independence.
• 1927 – Cardiff City defeated Arsenal 1–0 in the FA Cup final (match programme pictured) in the only time the FA Cup has been won by a non-English team.
• 1942 – Second World War: In retaliation for the Royal Air Force's bombing of Lübeck, the Luftwaffe began a series of air raids across England, beginning with Exeter.
• 1951 – American journalist William N. Oatis was arrested for espionage by the communist government of Czechoslovakia.
• 1954 – Batting for the Milwaukee Braves against Vic Raschi of the St. Louis Cardinals, Hank Aaron hit the first of his 755 home runs in Major League Baseball.
• 1971 – The Rolling Stones released Sticky Fingers, the first album on their own label, Rolling Stones Records.
• 2009 – The gamma-ray burst GRB 090423 was detected coming from the most distant astronomical object of any kind known at the time.
• 2010 – Arizona governor Jan Brewer signed into law the controversial anti–illegal immigration bill SB 1070, much of which was later struck down by the U.S. Supreme Court.
• 2019 – A landslide triggered the collapse of a jade mine in Hpakant, Myanmar, resulting in six confirmed deaths and presumed dozens more.
• Born/died this day: | Wihtred of Kent |d|725| Béla III of Hungary |d|1196| Joan of Acre |d|1307| Karl Friedrich Bahrdt |d|1792| Jim Bottomley |b|1900| Halston |b|1932| Roy Orbison |b|1936| Kathy Lynch |b|1957| Leni Robredo|b|1965

Notes

• ZX81 appears on March 5, so ZX Spectrum should not appear in the same year.

April 23: First day of Passover (Judaism); National Sovereignty and Children's Day in Turkey; the Third Month Fair begins in Dali City, China (2024)

Liberation of Flossenbürg

• 1467 – Ottoman wars in Europe: Albanian leader Skanderbeg defeated an Ottoman army under Ballaban Badera to raise the siege of Krujë.
• 1945 – World War II: The US Army's 90th Infantry Division liberated Flossenbürg concentration camp (pictured) in Germany, freeing 1,500 prisoners.
• 1976 – The American band the Ramones released their debut album, which became highly influential on the emerging punk rock movement.
• 1979 – Blair Peach, a New Zealand teacher, was fatally injured after being knocked unconscious during an Anti-Nazi League demonstration against a National Front election meeting in Southall, London.
• 2018 – A man intentionally struck pedestrians with a van on Yonge Street in Toronto, Canada, leading to 11 deaths.

• Joan of France (b. 1464)
• Pandita Ramabai (b. 1858)
• Satyajit Ray (d. 1992)

More anniversaries:

• April 22
• April 23
• April 24