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
• 
  Bataan Death March
• Mercury Monument honoring the original seven astronauts
  Mercury Monument honoring the original seven astronauts
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  The Mercury Seven
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  An EMD F40PH
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  Ulysses S. Grant accepting Robert E. Lee's surrender at the McLean House in 1865
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  Marian Anderson
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  Toppling of the Saddam Hussein statue in Baghdad

Ineligible

Blurb	Reason
Vimy Ridge Day in Canada;	unreferenced section
; Bataan Day in the Philippines	lots of {{cn}} tags
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.	Needs more footnotes
1413 – Henry V, who is featured in three plays by William Shakespeare, was crowned King of England.	refimprove
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.	refimprove section
1940 – World War II: Nazi Germany began Operation Weserübung, invading Denmark and Norway.	refimprove section
1947 – The Glazier–Higgins–Woodward tornadoes killed 181 people and injured 970 others in Texas, Oklahoma, and Kansas.	unreferenced section
1959 – NASA announced the selection of the Mercury Seven, the first astronauts in Project Mercury.	unreferenced section
1989 – An anti-Soviet demonstration in Tbilisi, Georgia, was quashed by the Soviet army, resulting in 20 deaths and hundreds of injuries.	unreferenced section

Eligible

• 1865 – A day after the destruction of their supply trains by Union troops, 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.
• 1866 – The Civil Rights Act of 1866, the United States' first federal law to affirm that all citizens are equally protected by the law, was enacted.
• 1918 – World War I: Aníbal Milhais's actions during 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.
• 1940 – During the German invasion of Norway, Vidkun Quisling seized control of the government in a Nazi-backed coup d'état.
• 1942 – World War II: Japanese forces defeated Allied troops at the Battle of Bataan on the Bataan Peninsula in the Philippines before beginning to forcibly transfer more than 90,000 prisoners of war to prison camps in the Bataan Death March.
• 1945 – The German heavy cruiser Admiral Scheer, the most successful capital ship surface raider of the Second World War, was sunk by British bombers.
• 1948 – Fighters from the Irgun and Lehi Zionist paramilitary groups attacked Deir Yassin near Jerusalem, killing over 100.
• 1976 – The first EMD F40PH diesel locomotive enters revenue service with Amtrak.
• 1999 – President of Niger Ibrahim Baré Maïnassara was shot to death by soldiers in Niamey.
• 2003 – Invasion of Iraq: Coalition forces captured Baghdad and the statue of Saddam Hussein in Firdos Square was toppled.

Notes

• Masaharu Homma (1946) appears on April 3, so Bataan Death March 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: Day of National Unity in Georgia (1989)

"Au clair de la lune" by Édouard-Léon Scott de Martinville

• 1860 – On his phonautograph machine, Édouard-Léon Scott de Martinville made the oldest known recording of an audible human voice, when he recorded himself singing "Au clair de la lune" (audio featured).
• 1917 – First World War: The Canadian Corps began the first wave of attacks at the Battle of Vimy Ridge in Vimy, France.
• 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.
• 1967 – The first Boeing 737 took its maiden flight, eventually becoming the most ordered and produced commercial passenger jet airliner in the world.
• 2005 – Charles, Prince of Wales, married his long-time mistress Camilla Parker Bowles.

Francis Bacon (d. 1626) · Jørn Utzon (b. 1918) · Mary Jackson (b. 1921)

More anniversaries:

• April 8
• April 9
• April 10