Wikipedia:Selected anniversaries/April 20: Difference between revisions

Content deleted Content added

Inline

Revision as of 23:40, 17 April 2021

This is a list of selected April 20 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 19	April 21 →

Staging area

Images

Pierre Trudeau
Claude Bernard
Louis Pasteur (requires undeletion)

Louis Pasteur (requires undeletion)
Louis Pasteur
René Caillié
Portrait of Oliver Cromwell by Samuel Cooper
Vädersolstavlan, attributed to Urban målare
Red Army Faction logo, showing a Heckler & Koch MP5 submachine gun on top of a red star, overlaid with the letters "RAF"
Billie Holiday
Pope Leo XIII
title=Enoch Powell in 1987
Danica Patrick4

Ineligible

Blurb	Reason
1303 – Pope Boniface VIII issued a bull establishing what is now Sapienza University of Rome, today one of the largest universities in Europe.	refimprove section
1653 – Oliver Cromwell dissolved the Rump Parliament of the Commonwealth of England by force, eventually replacing it with the Barebone's Parliament.	refimprove section
1792 – After Foreign Minister Charles François Dumouriez presented the French Legislative Assembly with a long list of grievances against Austria, France declared war to begin the French Revolutionary Wars.	refimprove section
1862 – French chemist Louis Pasteur and physiologist Claude Bernard completed the first test on pasteurization.	date not in article; Pasteur listed on Sept 28 (death date); fact not in Bernard article
1884 – Pope Leo XIII published the encyclical Humanum genus, denouncing Freemasonry as well as a number of beliefs and practices purportedly associated with it such as popular sovereignty and the separation of church and state.	lots of assorted inline maintenance tags
1908 – The inaugural season of the New South Wales Rugby League premiership began with nine teams competing in Australia's first Rugby league football competition.	Season: refimprove section; NSWRL: refimprove
1912 – Fenway Park in Boston, Massachusetts, and Tiger Stadium in Detroit, Michigan, were opened.	Fenway: refimprove section
1998 – The violent German revolutionary group known as the Red Army Faction announced that it had dissolved.	refimprove section

Eligible

1535 – Sun dogs were observed over Stockholm, Sweden, inspiring the painting Vädersolstavlan, the oldest colour depiction of the city.
1657 – Anglo-Spanish War: An English fleet sank much of a Spanish treasure fleet at Santa Cruz de Tenerife in the Canary Islands but was unable to capture the treasure.
1809 – War of the Fifth Coalition: Commanded by Napoleon, Franco-German forces defeated a reinforced Austrian corps at the Battle of Abensberg.
1828 – French explorer René Caillié became the first European to enter Timbuktu and return safely, for which he received a 10,000-franc prize from the Société de Géographie.
1939 – Adolf Hitler's 50th birthday was celebrated as a national holiday in Nazi Germany.
1939 – Billie Holiday recorded the song "Strange Fruit", which later became an emblem of the civil rights movement.
1968 – British member of Parliamen Enoch Powell made his controversial "Rivers of Blood" speech in opposition to immigration and anti-discrimination legislation, resulting in his removal from the Shadow Cabinet.
1968 – Pierre Trudeau was sworn in as prime minister of Canada, succeeding Lester B. Pearson.
1999 – Students Eric Harris and Dylan Klebold embarked on a massacre, killing 13 people and wounding more than 20 others before committing suicide at Columbine High School in Columbine, Colorado.
2008 – American racing driver Danica Patrick won the Indy Japan 300, becoming the first woman to win an IndyCar auto race.
2010 – An explosion on Deepwater Horizon, an offshore rig in the Gulf of Mexico, resulted in the largest marine oil spill in history.
Born/died this day: | Cædwalla of Wessex |d|689| Peter Bartholomew|d|1099| Elizabeth Barton|d|1534| Allegra Byron|d|1822| John Abernethy|d|1831| Paul Poiret|b|1879| Dave Bancroft|b|1891| Frances Ames|b|1920| Elmer Gedeon|d|1944| Nina Davuluri|b|1989

April 20: First day of Ridván (Baháʼí Faith, 2021); 420 (cannabis culture)

Fernando Lugo

1537 – Bacatá, the main settlement of the Muisca Confederation, was conquered by Gonzalo Jiménez de Quesada during the Spanish conquest of the Muisca, effectively ending the Confederation in the Colombian Eastern Andes.
1818 – Four days after the Court of King's Bench in England upheld a murder suspect's right to trial by battle in Ashford v Thornton, the plaintiff declined to fight, allowing the defendant to go free.
1914 – A fire and a gun battle between the Colorado National Guard and striking coal miners in Ludlow, Colorado, U.S., led to 17 deaths in the Ludlow Massacre.
1978 – Soviet fighters shot at Korean Air Lines Flight 902 after it violated Soviet airspace, forcing it to make an emergency landing due to damage.
2008 – Fernando Lugo (pictured) became the first non-Colorado Party candidate to be elected President of Paraguay in 61 years.

William Bedloe (b. 1650)
David Brainerd (b. 1718)
Vjekoslav Luburić (d. 1969)

More anniversaries:

@@ Line 11: / Line 11: @@
 File:Vädersoltavlan cropped.JPG|Vädersolstavlan, attributed to Urban målare
 File:RAF-Logo.svg|Red Army Faction logo, showing a Heckler & Koch MP5 submachine gun on top of a red star, overlaid with the letters "RAF"
-File:Fernando Lugo - ITN.jpg|Fernando Lugo
+File:Billie Holiday 0001 original.jpg|Billie Holiday
 File:Leo XIII..jpg|Pope Leo XIII
 File:Enoch Powell 14 Allan Warren.jpg|Enoch Powell|title=Enoch Powell in 1987
-File:Danica Patrick 2009 Indy 500 Pole Day.JPG|Danica Patrick
+File:Danica Patrick 2009 Indy 500 Pole Day.JPG|Danica Patrick4
 </gallery>
@@ Line 49: / Line 49: @@
 ==Eligible==
+* [[1535]] – [[Sun dog]]s were observed over [[Stockholm]], Sweden, inspiring the painting '''''[[Vädersolstavlan]]''''', the oldest colour depiction of the city.
-* [[1537]] – '''[[Bacatá]]''', the main settlement of the [[Muisca Confederation]], was conquered by [[Gonzalo Jiménez de Quesada]] during the [[Spanish conquest of the Muisca]], effectively ending the Confederation in the [[Colombia]]n [[Altiplano Cundiboyacense|Eastern Andes]].
 * [[1657]] – [[Anglo-Spanish War (1654–1660)|Anglo-Spanish War]]: An English fleet '''[[Battle of Santa Cruz de Tenerife (1657)|sank]]''' much of a [[Spanish treasure fleet]] at [[Santa Cruz de Tenerife]] in the [[Canary Islands]] but was unable to capture the treasure.
+* [[1809]] – [[War of the Fifth Coalition]]: Commanded by [[Napoleon]], Franco-German forces defeated a reinforced Austrian corps at the '''[[Battle of Abensberg]]'''.
-* [[1818]] – Four days after the [[Court of King's Bench (England)|Court of King's Bench]] in England upheld a murder suspect's right to [[trial by battle]] in '''''[[Ashford v Thornton]]''''', the plaintiff declined to fight, allowing the defendant to go free.
 * [[1828]] – French explorer '''[[René Caillié]]'''<!-- ''(pictured)''--> became the first European to enter [[Timbuktu]] and return safely, for which he received a 10,000-[[French franc|franc]] prize from the [[Société de Géographie]].
-* [[1914]] – A fire and a gun battle between the [[Colorado National Guard]] and striking coal miners in [[Ludlow, Colorado]], U.S., led to 17 deaths in the '''[[Ludlow Massacre]]'''.
 * [[1939]] – [[Adolf Hitler]]'s '''[[Adolf Hitler's 50th birthday|50th birthday]]''' was celebrated as a national holiday in [[Nazi Germany]].
+* [[1939]] – [[Billie Holiday]]<!-- ''(pictured)''--> recorded the song "'''[[Strange Fruit]]'''", which later became an emblem of [[Civil rights movement (1896–1954)|the civil rights movement]].
 * [[1968]] – British member of Parliamen [[Enoch Powell]] made his controversial '''[[Rivers of Blood speech|"Rivers of Blood" speech]]''' in opposition to [[Modern immigration to the United Kingdom|immigration]] and anti-[[Racism in the United Kingdom|discrimination]] legislation, resulting in his removal from the [[Shadow Cabinet]].
+* [[1968]] – '''[[Pierre Trudeau]]''' was sworn in as [[Prime Minister of Canada|prime minister of Canada]], succeeding [[Lester B. Pearson]].
-* [[1978]] – Soviet fighters shot at '''[[Korean Air Lines Flight 902]]''' after it violated Soviet airspace, forcing it to make an emergency landing due to damage.
 * [[1999]] – Students '''[[Eric Harris and Dylan Klebold]]''' [[Columbine High School massacre|embarked on a massacre]]<!-- Do not bold; too many citations needed -->, killing 13 people and wounding more than 20 others before committing suicide at [[Columbine High School]] in [[Columbine, Colorado]].
 * [[2008]] – American racing driver '''[[Danica Patrick]]'''<!-- ''(pictured)''--> won the [[Indy Japan 300]], becoming the first woman to win an [[IndyCar]] auto race.
+* [[2010]] – '''[[Deepwater Horizon explosion|An explosion]]''' on '''''[[Deepwater Horizon]]''''', an [[Oil platform|offshore rig]] in the [[Gulf of Mexico]], resulted in '''[[Deepwater Horizon oil spill|the largest marine oil spill in history]]'''.
-* [[2008]] – '''[[Fernando Lugo]]''' became the first non-[[Colorado Party (Paraguay)|Colorado Party]] candidate to be '''[[2008 Paraguayan general election|elected]]''' [[President of Paraguay]] in 61 years.
-* Born/died this day: '''[[Cædwalla of Wessex]]''' (d.&nbsp;689) | '''[[Elizabeth Barton]]'''<!--English nun--> (d.&nbsp;1534) | '''[[Allegra Byron]]'''<!--English child--> (d.&nbsp;1822) | '''[[John Abernethy (surgeon)|John Abernethy]]'''<!--English physician--> (d.&nbsp;1831) | '''[[Paul Poiret]]'''<!--French fashion designer--> (b.&nbsp;1879) | '''[[Elmer Gedeon]]'''<!--American baseball player--> (d.&nbsp;1944) | '''[[Nina Davuluri]]'''<!--American activist--> (b.&nbsp;1989)
+* Born/died this day: | '''[[Cædwalla of Wessex]]'''<!--English king--> |d|689| '''[[Peter Bartholomew]]'''<!--French mystic-->|d|1099| '''[[Elizabeth Barton]]'''<!--English nun-->|d|1534| '''[[Allegra Byron]]'''<!--English child-->|d|1822| '''[[John Abernethy (surgeon)|John Abernethy]]'''<!--English physician-->|d|1831| '''[[Paul Poiret]]'''<!--French fashion designer-->|b|1879| '''[[Dave Bancroft]]'''<!--American baseball player-->|b|1891| '''[[Frances Ames]]'''<!--South African physician, female-->|b|1920| '''[[Elmer Gedeon]]'''<!--American baseball player-->|d|1944| '''[[Nina Davuluri]]'''<!--American activist-->|b|1989
 {{divhide|end}}
 </noinclude>
 '''[[April 20]]''': First day of '''[[Ridván]]''' ([[Baháʼí Faith]], 2021)<!--moves to April 21 in 2022-->; '''[[420 (cannabis culture)|420]]''' ([[cannabis culture]])
 <div style="float:right;margin-left:0.5em;" id="mp-otd-img">
-{{main page image/OTD|File:Billie Holiday 0001 original.jpg|Billie Holiday}}
+{{main page image/OTD|File:Fernando Lugo - ITN.jpg|Fernando Lugo}}
 </div>
+* [[1537]] – '''[[Bacatá]]''', the main settlement of the [[Muisca Confederation]], was conquered by [[Gonzalo Jiménez de Quesada]] during the [[Spanish conquest of the Muisca]], effectively ending the Confederation in the [[Colombia]]n [[Altiplano Cundiboyacense|Eastern Andes]].
-* [[1535]] – [[Sun dog]]s were observed over [[Stockholm]], Sweden, inspiring the painting '''''[[Vädersolstavlan]]''''', the oldest colour depiction of the city.
+* [[1818]] – Four days after the [[Court of King's Bench (England)|Court of King's Bench]] in England upheld a murder suspect's right to [[trial by battle]] in '''''[[Ashford v Thornton]]''''', the plaintiff declined to fight, allowing the defendant to go free.
-* [[1809]] – [[War of the Fifth Coalition]]: Commanded by [[Napoleon]], Franco-German forces defeated a reinforced Austrian corps at the '''[[Battle of Abensberg]]'''.
+* [[1914]] – A fire and a gun battle between the [[Colorado National Guard]] and striking coal miners in [[Ludlow, Colorado]], U.S., led to 17 deaths in the '''[[Ludlow Massacre]]'''.
-* [[1939]] – [[Billie Holiday]] ''(pictured)'' recorded the song "'''[[Strange Fruit]]'''", which later became an emblem of [[Civil rights movement (1896–1954)|the civil rights movement]].
+* [[1978]] – Soviet fighters shot at '''[[Korean Air Lines Flight 902]]''' after it violated Soviet airspace, forcing it to make an emergency landing due to damage.
-* [[1968]] – '''[[Pierre Trudeau]]''' was sworn in as [[Prime Minister of Canada|prime minister of Canada]], succeeding [[Lester B. Pearson]].
+* [[2008]] – '''[[Fernando Lugo]]''' ''(pictured)'' became the first non-[[Colorado Party (Paraguay)|Colorado Party]] candidate to be '''[[2008 Paraguayan general election|elected]]''' [[President of Paraguay]] in 61 years.
-* [[2010]] – '''[[Deepwater Horizon explosion|An explosion]]''' on '''''[[Deepwater Horizon]]''''', an [[Oil platform|offshore rig]] in the [[Gulf of Mexico]], resulted in '''[[Deepwater Horizon oil spill|the largest marine oil spill in history]]'''.
-{{hlist | '''[[Peter Bartholomew]]'''<!--French mystic--> (d.&nbsp;1099) | '''[[Dave Bancroft]]'''<!--American baseball player--> (b.&nbsp;1891) | '''[[Frances Ames]]'''<!--South African physician, female--> (b.&nbsp;1920) }}
+{{Born and died list| '''[[William Bedloe]]'''<!--English criminal-->|b|1650| '''[[David Brainerd]]'''<!--American missionary-->|b|1718| '''[[Vjekoslav Luburić]]'''<!--Croatian war criminal-->|d|1969}}
 {{SelAnnivFooter|Month=April|Day=20}}
-<noinclude>
-</noinclude>