This is a list of selected April 11 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, featured list 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.
Staging area
Images
Use only ONE image at a time
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Buchenwald slave laborers -
Hugo Chávez (requires undeletion)
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Hugo Chávez -
Buchenwald concentration camp watchtower -
SMS Blücher -
Nevill Ground's cricket pavilion after the arson attack -
The Concertgebouw -
Emir Abdullah of Transjordan
Ineligible
| Blurb | Reason |
|---|---|
| Juan Santamaría Day in Costa Rica | refimprove |
| 1828 – Bahía Blanca in Argentina was founded as a fortress to protect dwellers and their cattle from native rustling, and to protect the coast from the Brazilian Navy. | date not cited, inappropriate tone |
| 1909 – The city of Tel Aviv in Ottoman Syria was founded as 66 Jewish families held a lottery to distribute land their organisation had purchased north of Jaffa. | refimprove section |
| 1945 – World War II: American forces liberated the Buchenwald concentration camp near Weimar, Germany. | refimprove section |
| 1955 – Air India's Kashmir Princess was destroyed in mid-air by a bomb in an assassination attempt on Chinese Premier Zhou Enlai, who had not been on board. | refimprove |
| 1965 – Almost 50 confirmed tornadoes struck six states in the Midwestern United States during the Palm Sunday tornado outbreak, killing over 270 people and injuring 1,500 others. | needs more footnotes |
| 1968 – U.S. president Lyndon B. Johnson signed the Civil Rights Act of 1968, prohibiting racial discrimination in the sale, rental, and financing of housing. | missing information |
| 1981 – Tensions between residents and the police in Brixton, South London, escalated into a massive riot that resulted in almost 300 police injuries, 45 civilian injuries, over a hundred vehicles burned, and over 150 buildings damaged. | multiple issues |
| 1986 – Eight FBI agents exchanged gunfire with two bank robbers in Miami, Florida, which led to the introduction of more powerful handguns in many police departments around the country. | refimprove section |
| Llywelyn the Great |d|1240 | refimprove section |
Eligible
- 1241 – Mongol invasion of Europe: Mongol forces led by Batu Khan and Subutai defeated the army of King Béla IV at the Battle of Mohi near the river Sajó, a key victory in their first invasion of Hungary.
- 1544 – Italian War of 1542–1546: French and Spanish forces fought a massive pitched battle in the Piedmont region of Italy.
- 1713 – The main treaties of the Peace of Utrecht were signed in Utrecht in the Dutch Republic, helping to end the War of the Spanish Succession.
- 1814 – The Treaty of Fontainebleau was signed, ending the War of the Sixth Coalition and forcing Napoleon to abdicate as ruler of France and sending him into exile on Elba.
- 1888 – The Concertgebouw in Amsterdam, considered one of the world's finest concert halls, was inaugurated.
- 1908 – Blücher, the last armored cruiser built by the Imperial German Navy, was launched.
- 1913 – The cricket pavilion at the Nevill Ground was destroyed in an arson attack (damage pictured) that was attributed to militant suffragettes as part of a country-wide campaign co-ordinated by the Women's Social and Political Union.
- 1919 – Paris Peace Conference: Woodrow Wilson overturns Japan's Racial Equality Proposal, stating that unanimous support was required.
- 1921 – Emir Abdullah established the first centralised government in the recently created British protectorate of Transjordan.
- 1963 – Pope John XXIII issued Pacem in terris, the first papal encyclical addressed to "all men of good will" rather than only to Catholics.
- 1968 – Rudi Dutschke, the most prominent leader of the German student movement, survived an assassination attempt, which led to the largest protests to that date in Germany.
- 1973 – On the Art of the Cinema, a treatise on film propaganda in support of the ruling Workers' Party of Korea written by the future North Korean leader Kim Jong Il, was published.
- 1979 – Uganda–Tanzania War: The allied forces of Tanzania and the Uganda National Liberation Front captured the capital Kampala, deposing Ugandan president Idi Amin.
- 1993 – Prisoners at the Southern Ohio Correctional Facility near Lucasville, Ohio, rioted and took over the prison for 11 days, resulting in the deaths of one officer and nine inmates.
- 1996 – While attempting to set a record as the youngest person to pilot an airplane across the United States, the aircraft flown by seven-year-old Jessica Dubroff crashed in Cheyenne, Wyoming, killing her and two others.
- 2002 – In a coup attempt, members of the Venezuelan military detained President Hugo Chávez and demanded his resignation.
- 2011 – A bomb exploded at the central Oktyabrskaya station of the Minsk Metro in Belarus, killing 15 people and injuring more than 200.
- 2017 – The tour bus of the German football team Borussia Dortmund was attacked with roadside bombs in Dortmund, killing a police officer and injuring one of the team's players.
- 2023 – A Myanmar Air Force airstrike killed at least 100 villagers in Pazigyi.
- Born/died:| Anawrahta |d|1077| | Stephen IV of Hungary |d|1165| Ramadan ibn Alauddin |d|1349| Edward Wightman |d|1612| Christopher Smart |b|1722| Edward Everett |b|1794| Ferdinand Lassalle |b|1825| John Douglas (English architect) |b|1830| Arthur Shrewsbury |b|1856| Charles Evans Hughes |b|1862| Joseph Merrick |d|1890| Percy Lavon Julian |b|1899| Percy Lavon Julian |b|1899| Bunny Ahearne |d|1985| Kurt Vonnegut |d|2007| Muhammad Kamaruzzaman |d|2015
Mary II and William III
- 1689 – William III and Mary II (both pictured) were crowned joint sovereigns of England in a ceremony at Westminster Abbey.
- 1809 – Napoleonic Wars: A hastily assembled Royal Navy fleet launched an assault against the main strength of the French Atlantic Fleet; an incomplete victory led to political turmoil in Britain.
- 1951 – U.S. president Harry S. Truman relieved General of the Army Douglas MacArthur of his commands for making public statements about the Korean War that contradicted the administration's policies.
- 2001 – In a FIFA World Cup qualifying match, Australia defeated American Samoa 31–0, the largest margin of victory recorded in international football.
- Romanos III Argyros (d. 1034)
- Ewelina Hańska (d. 1882)
- Trevor Linden (b. 1970)