Editing May 17 (section)

===1901–present===
*[[1902]] &ndash; Greek archaeologist [[Valerios Stais]] discovers the [[Antikythera mechanism]], an ancient mechanical [[analog computer]].
*[[1914]] &ndash; The [[Protocol of Corfu]] is signed, recognising [[Autonomous Republic of Northern Epirus|full autonomy]] to [[Northern Epirus]] under nominal [[Albania]]n sovereignty.
*[[1915]] &ndash; The last [[The Liberal Party (UK)|British Liberal Party]] government (led by [[H. H. Asquith]]) falls.
*[[1933]] &ndash; [[Vidkun Quisling]] and [[Johan Bernhard Hjort]] form [[Nasjonal Samling]] &mdash; the [[Nazism|national-socialist]] party of Norway.
*[[1937]] &ndash; [[Spanish Civil War]]: The [[Largo Caballero]] government resigns in the wake of the [[Barcelona May Days]], leading [[Juan Negrín]] to form a government, without the [[anarcho-syndicalist]] [[National Confederation of Labor|CNT]], in its stead.<ref>{{cite book|last=Graham|first=Helen|title=The Spanish Civil War. A Very Short Introduction|publisher=Oxford University Press|year=2005|isbn=978-0-19-280377-1|url=https://archive.org/details/spanishcivilwarv00grah_0|page=162}}</ref>
*[[1939]] &ndash; The [[Columbia Lions]] and the [[Princeton Tigers]] play in the United States' first televised sporting event, a [[college baseball|collegiate baseball]] game in New York City.
*[[1940]] &ndash; [[World War II]]: Germany [[Battle of Belgium|occupies Brussels]], Belgium.
*[[1943]] &ndash; World War II: [[Dambuster Raids]] commence by [[No. 617 Squadron RAF]].
*[[1953]] &ndash; [[Delta Air Lines Flight 318]] crashes near [[Marshall, Texas]], killing 19.<ref name="TSM">{{cite web |date=1996 |title=Accident Description |url=https://aviation-safety.net/database/record.php?id=19530517-0 |access-date=11 December 2022 |website=aviation-safety.net |publisher=}}</ref>
*[[1954]] &ndash; The [[United States Supreme Court]] hands down a unanimous decision in ''[[Brown v. Board of Education]] of [[Topeka, Kansas]]'', outlawing racial segregation in public schools.
*[[1967]] &ndash; [[Six-Day War]]: [[President of Egypt|President]] [[Gamal Abdel Nasser]] of [[Egypt]] demands dismantling of the peace-keeping [[UN Emergency Force]] in Egypt.
*[[1969]] &ndash; [[Venera program]]: [[Soviet Union|Soviet]] ''[[Venera 6]]'' begins its descent into the [[atmosphere]] of [[Venus]], sending back atmospheric data before being crushed by pressure.
*[[1973]] &ndash; [[Watergate scandal]]: Televised hearings begin in the [[United States Senate]].
*[[1974]] &ndash; [[The Troubles]]: [[Dublin and Monaghan bombings|Thirty-three civilians are killed]] and 300 injured when the [[Ulster Volunteer Force]] (UVF) detonates four car bombs in [[Dublin]] and [[Monaghan]], [[Republic of Ireland|Ireland]]. 
*  1974   &ndash; [[Los Angeles Police Department|Police in Los Angeles]] raid the [[Symbionese Liberation Army]]'s headquarters, killing six members, including [[Camilla Hall]].
*[[1977]] &ndash; [[Nolan Bushnell]] opened the first [[Chuck E. Cheese|Chuck E. Cheese's Pizza Time Theatre]] (later renamed [[Chuck E. Cheese]]) in [[San Jose, California]].
*[[1980]] &ndash; General [[Chun Doo-hwan]] of South Korea [[Coup d'état of May Seventeenth|seizes control]] of the government and declares [[martial law]] in order to suppress student demonstrations.
*  1980   &ndash; On the eve of presidential elections, [[Maoism|Maoist]] [[guerrilla warfare|guerrilla]] group [[Shining Path]] attacks a polling location in [[Chuschi]] (a town in [[Ayacucho]]), starting the [[Internal conflict in Peru]].
*[[1983]] &ndash; The [[United States Department of Energy|U.S. Department of Energy]] declassifies documents showing world's largest [[Mercury (element)|mercury]] pollution event in [[Oak Ridge, Tennessee]] (ultimately found to be {{convert|4.2|e6lb|disp=sqbr}}), in response to the ''Appalachian Observer'''s [[Freedom of Information Act (United States)|Freedom of Information Act]] request.
*  1983   &ndash; [[Lebanon]], [[Israel]], and the United States sign an [[May 17 Agreement|agreement]] on Israeli withdrawal from [[Lebanon]].
*[[1984]] &ndash; [[Charles III of the United Kingdom|Prince Charles]] calls a proposed addition to the [[National Gallery]], London, a "monstrous carbuncle on the face of a much-loved and elegant friend", sparking controversies on the proper role of the [[British Royal Family|Royal Family]] and the course of [[modern architecture]].
*[[1987]] &ndash; [[Iran–Iraq War]]: An [[Ba'athist Iraq|Iraq]]i [[Dassault Mirage F1]] fighter jet [[USS Stark incident|fires two missiles]] into the U.S. Navy warship {{USS|Stark|FFG-31|6}}, killing 37 and injuring 21 of her crew.
*[[1990]] &ndash; The General Assembly of the [[World Health Organization]] (WHO) eliminates [[homosexuality]] from the list of psychiatric diseases.
*[[1992]] &ndash; Three days of [[Black May (1992)|popular protests]] against the government of [[Prime Minister of Thailand]] [[Suchinda Kraprayoon]] begin in [[Bangkok]], leading to a military crackdown that results in 52 officially confirmed deaths, hundreds of injuries, many disappearances, and more than 3,500 arrests.
*[[1994]] &ndash; [[Malawi]] holds its [[1994 Malawian general election|first multi-party elections]].
*[[1995]] &ndash; [[Shawn Nelson (criminal)|Shawn Nelson]] steals an [[M60 tank]] from the [[California Army National Guard]] [[armory (military)|Armory]] in [[San Diego]] and proceeds to go on a rampage.
*[[1997]] &ndash; Troops of [[Laurent-Désiré Kabila]] march into [[Kinshasa]]. [[Zaire]] is officially renamed [[Democratic Republic of the Congo]].
*[[2000]] &ndash; [[Arsenal F.C.|Arsenal]] and [[Galatasaray S.K. (football)|Galatasaray]] fans clash in the [[2000 UEFA Cup final riots|2000 UEFA Cup Final riots]] in Copenhagen
*[[2004]] &ndash; The first legal [[same-sex marriage]]s in the U.S. are performed in the state of [[Same-sex marriage in Massachusetts#First same-sex marriages|Massachusetts]].
*[[2006]] &ndash; The aircraft carrier {{USS|Oriskany|CV-34|6}} is sunk in the [[Gulf of Mexico]] as an [[artificial reef]].
*[[2007]] &ndash; Trains from [[North Korea|North]] and South Korea cross the [[38th parallel north|38th Parallel]] in a test-run agreed by both governments. This is the first time that trains have crossed the Demilitarized Zone since [[1953]].
*[[2010]] &ndash; [[Pamir Airways Flight 112]] crashes in Afghanistan's [[Shakardara District]], killing 44.<ref name="afp21052010">{{cite web |date=21 May 2010 |title=Wreckage of Afghan plane, bodies found: minister |url=https://www.google.com/hostednews/afp/article/ALeqM5hEO5ufxW2PXmIudko884oc_jVcXw |archive-url=https://archive.today/20120906091409/http://www.google.com/hostednews/afp/article/ALeqM5hEO5ufxW2PXmIudko884oc_jVcXw |url-status=dead |archive-date=September 6, 2012 |access-date=21 May 2010 |agency=[[Agence France-Presse]]}}</ref>
*[[2014]] &ndash; A military [[2014 Lao People's Liberation Army Air Force An-74 crash|plane crash]] in northern [[Laos]] kills 17 people.<ref>{{Cite web |last= |first= |title=Air crash kills senior Lao officials, leaves power vacuum |url=https://www.refworld.org/docid/5391ba171c.html |access-date=2021-05-22 |website=Refworld |publisher=United Nations High Commissioner for Refugees}}</ref>