Wikipedia:Selected anniversaries/June 21
This is a list of selected June 21 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.
Images
Use only ONE image at a time
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Flag of Greenland -
Pope Paul VI -
SpaceShipOne
Ineligible
| Blurb | Reason |
|---|---|
| World Music Day; | refimprove |
| Midsummer festivities (Northern Hemisphere); Winter solstice festivals (Southern Hemisphere); | both: refimprove |
| 217 BC – Second Punic War: The Carthaginians under Hannibal executed one of the largest military ambushes in history when they overwhelmingly defeated the Romans. | inappropriate tone |
| 1582 – Sengoku period: Oda Nobunaga, the most powerful of the Japanese daimyo, was forced to commit suicide by his own general Akechi Mitsuhide. | refimprove |
| 1798 – Over 15,000 British soldiers launched an attack on Vinegar Hill, the largest camp and headquarters of the County Wexford United Irish rebels, marking a turning point in the Irish Rebellion. | needs more footnotes |
| 1798 – New Hampshire ratified the U.S. Constitution and was admitted as the ninth U.S. state. | unreferenced section |
| 1813 – Peninsular War: The Marquess of Wellington's combined British, Portuguese, and Spanish allied army defeated the French near Vitoria, Spain. | needs more footnotes |
| 1854 – Crimean War: During the first Battle of Bomarsund, Irish sailor Charles Davis Lucas threw an artillery shell off his ship before it exploded, earning him the very first Victoria Cross. | refimprove |
| 1919 – During the Winnipeg general strike in Winnipeg, Manitoba, Canada, members of the Royal Northwest Mounted Police charged into the crowd of strikers on horseback, beating them with clubs and firing weapons. | refimprove |
| 1964 – Three civil rights workers were murdered by members of the Ku Klux Klan near Philadelphia, Mississippi, U.S. | refimprove |
| 1973 – The U.S. Supreme Court delivered its decision in the landmark case Miller v. California, establishing the "Miller test" for determining what is obscene material. | needs more footnotes |
| 1985 – Greenland officially adopted its own flag, adding support to its independence movement from Denmark. | refimprove |
| 2000 – The controversial British law known as Section 28, prohibiting the "promotion" of homosexuality, was repealed. | cleanup, also appears on May 24 |
| 2004 – SpaceShipOne completed the first privately funded human spaceflight. | refimprove section |
Eligible
- 1529 – War of the League of Cognac: The French army under Francis de Bourbon was destroyed in Lombardy, present-day Italy, by the Spanish army.
- 1848 – In the Wallachian Revolution, Ion Heliade Rădulescu and Christian Tell proclaimed a new republican government.
- 1898 – In a bloodless event during the Spanish–American War, the United States captured Guam from Spain.
- 1919 – Admiral Ludwig von Reuter scuttled the German High Seas Fleet in Scapa Flow to prevent the ships from being seized and divided amongst the Allied Powers.
June 21: June solstice (04:24 UTC, 2017); International Yoga Day; National Aboriginal Day in Canada
- 1734 – A black slave known as Marie-Joseph Angélique, having been convicted of setting the fire that destroyed much of Montreal, was tortured and then hanged in New France.
- 1826 – Greek War of Independence: A combined Egyptian and Ottoman army began their invasion of the Mani Peninsula, but they were initially held off by the Maniots at the fortifications of Vergas.
- 1864 – New Zealand Wars: British victory in the Battle of Te Ranga brought the Tauranga Campaign to an end.
- 1948 – The Manchester Small-Scale Experimental Machine (replica pictured), the world's first stored-program computer, ran its first computer program.
- 1963 – Italian cardinal Giovanni Battista Montini was elected as Pope Paul VI.
Increase Mather (b. 1639) · Clara Immerwahr (b. 1870) · Gideon Sundback (d. 1954)