Wikipedia:Selected anniversaries/April 9

This is a list of selected April 9 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 8	April 10 →

Staging area

Images

Use only ONE image at a time.

• 
  Flag of Georgia
• "Au clair de la lune" by Édouard-Léon Scott de Martinville
• 
  Ulysses S. Grant accepting Robert E. Lee's surrender at the McLean House in 1865
• 
  Bataan Death March
• 
  The Mercury Seven
• 
  Mercury Monument honoring the original seven astronauts
• 
  Marian Anderson performing at the Lincoln Memorial
• 
  Marian Anderson
• 
  An EMD F40PH
• 
  Muhammad Baqir al-Sadr
• 
  Toppling of the Saddam Hussein statue in Baghdad

Ineligible

Blurb	Reason
; Day of National Unity in Georgia (1989)	not an article on this topic, just one line; and list referencing is inadequate
1241 – A combined force of Poles and Germans attempted to halt the Mongol invasion of Europe at the Battle of Legnica near present-day Legnica, Poland.	multiple issues
1413 – Henry V, later featured in three plays by William Shakespeare, was crowned King of England.	unreferenced section (Ancestry)
1860 – Édouard-Léon Scott de Martinville recorded himself singing "Au clair de la lune" on his phonautograph, producing the oldest known recording of an audible human voice.	cleanup bare URLs
1865 – Confederate forces under Robert E. Lee surrendered to Ulysses S. Grant at the McLean House near the Appomattox Court House in Virginia, effectively ending the American Civil War.	refimprove section
1866 – The Civil Rights Act, the first United States federal legislation to affirm that all citizens are equally protected by law, was enacted.	more citations needed
1918 – World War I: Aníbal Milhais's actions at the Battle of the Lys made him the only person to be awarded Portugal's highest military honour, the Order of the Tower and Sword, directly on the battlefield.	close paraphrasing, unreliable source (see talk page)
1940 – World War II: Nazi Germany began Operation Weserübung, invading Denmark and Norway.	refimprove and refimprove section
1942 – World War II: Japanese forces defeated Allied troops at the Battle of Bataan in the Philippines before beginning to forcibly transfer more than 90,000 prisoners of war to prison camps in the Bataan Death March.	page numbers needed
1989 – An anti-Soviet demonstration in Tbilisi, Georgia, was quashed by the Red Army, resulting in 20 deaths and hundreds of injuries.	unreferenced section
2003 – Invasion of Iraq: Coalition forces captured Baghdad and the statue of Saddam Hussein in Firdos Square was toppled.	Battle: unreferenced sections; Statue: multiple issues
Francis Bacon |d|1626	inappropriate tone
Easter (Western Christianity, 2023);	12+ citations needed and orange tagged section for expansion and citation

Eligible

• 1917 – First World War: The Canadian Corps began the first wave of attacks of the Battle of Vimy Ridge in Vimy, France.
• 1940 – World War II: During the German invasion of Norway, Vidkun Quisling attempted to seize power in the first coup to be broadcast over radio.
• 1945 – The German heavy cruiser Admiral Scheer, the most successful capital-ship surface raider of the Second World War, was sunk by British bombers.
• 1947 – Sixteen white and black men began a two-week journey in the American South, acting in defiance of local laws that enforced segregated seating on public buses.
• 1947 – The Glazier–Higgins–Woodward tornadoes killed 181 people and injured 970 others in Texas, Oklahoma, and Kansas.
• 1948 – Palestine war: Fighters from the Zionist paramilitary groups Irgun and Lehi attacked the village of Deir Yassin near Jerusalem, killing more than 100 Palestinian Arabs.
• 1959 – NASA announced the selection of the Mercury Seven, the first astronauts in Project Mercury.
• 1976 – The first EMD F40PH, Amtrak's most widespread diesel locomotive for many years, entered into service.
• 1980 – Iraqi philosopher Muhammad Baqir al-Sadr (pictured) and his sister Amina were executed by the regime of Saddam Hussein.
• 1993 – Iranian filmmaker Morteza Avini was killed by a land mine in Fakkeh while producing a documentary.
• 1999 – Ibrahim Baré Maïnassara, President of Niger, was shot dead by soldiers in Niamey.
• 2005 – Charles, Prince of Wales, married Camilla Parker Bowles in a civil ceremony at the Windsor Guildhall.
• 2021 – Burmese military and police forces killed at least 82 civilians in the Bago massacre, including 2021 Myanmar coup d'état protesters.
• Born/died:| Pope Benedict VIII |d|1024| Jean Quintin |d|1561| Henrik Rysensteen |b|1624| Samuel Fritz |b|1654| William Law |d|1761| Charles Proteus Steinmetz |b|1865| Jørn Utzon |b|1918| Alphonse Alley|b|1930| Nate Colbert|b|1946| Vilhelm Bjerknes |d|1951| Natascha Engel |b|1967| Peter Canavan |b|1971Jenna Jameson |b|1974| Jackie Evancho |b|2000| Nick Adenhart |d|2009 Nikki Grahame |d|2021| Nikki Grahame|d|2021|

Notes

• Masaharu Homma (1946) appears on April 3, so Bataan Death March should not appear in the same year
• 1936 Tupelo–Gainesville tornado outbreak appears on April 5, so 1947 outbreak should not appear in the same year
• Henry V, Holy Roman Emperor appears on April 13, so to avoid confusion, King Henry V should not appear in the same year.

April 9: Vimy Ridge Day in Canada (1917); Day of Valor in the Philippines (1942)

National Gallery

• 193 – Year of the Five Emperors: Septimius Severus was proclaimed Roman emperor by his troops at Carnuntum in modern-day Austria.
• 1388 – Despite being vastly outnumbered, forces of the Old Swiss Confederacy defeated an Austrian army at the Battle of Näfels.
• 1838 – The National Gallery (pictured) opened in its current building in Trafalgar Square, London.
• 1939 – After being denied permission to perform at Constitution Hall by the Daughters of the American Revolution, African-American singer Marian Anderson gave an open-air concert on the steps of the Lincoln Memorial in Washington, D.C.

• Young Dirty Bastard (b. 1989)
• Isambard Kingdom Brunel (b. 1806)
• Mary Jackson (b. 1921)

More anniversaries:

• April 8
• April 9
• April 10