Editing May 30 (section)

===1901–present===
*[[1911]] &ndash; At the [[Indianapolis Motor Speedway]], the first [[Indianapolis 500]] ends with [[Ray Harroun]] in his [[Marmon Wasp|Marmon ''Wasp'']] becoming the first winner of the 500-mile auto race.
*[[1913]] &ndash; The [[Treaty of London (1913)|Treaty of London]] is signed, ending the [[First Balkan War]]; [[Albania]] becomes an independent nation.
*[[1914]] &ndash; The new, and then the largest, [[Cunard Line|Cunard]] [[ocean liner]] {{RMS|Aquitania}}, 45,647 tons, sets sails on her maiden voyage from [[Liverpool]], England, to New York City.
*[[1922]] &ndash; The [[Lincoln Memorial]] is dedicated in Washington, D.C..
*[[1925]] &ndash; [[May Thirtieth Movement]]: [[Shanghai Municipal Police]] Force shoot and kill 13 protesting workers.
*[[1937]] &ndash; [[Memorial Day massacre of 1937|Memorial Day massacre]]: Chicago police shoot and kill ten labor demonstrators.<ref>{{cite book |last1=Graf |first1=John |last2=Skorpad |first2=Steve |title=Chicago's Monuments, Markers, and Memorials |date=2002 |publisher=Arcadia Publishing |isbn=978-0-7385-2002-5 |page=36 |url=https://books.google.com/books?id=2MnSgzx-iGsC&pg=PA36 |language=en}}</ref>
*[[1941]] &ndash; [[World War II]]: [[Manolis Glezos]] and [[Apostolos Santas]] climb the Athenian [[Acropolis]] and tear down the German flag.
*[[1942]] &ndash; World War II: One thousand British bombers launch a [[Bombing of Cologne in World War II|90-minute attack on Cologne]], Germany.
*[[1943]] &ndash; [[The Holocaust]]: [[Josef Mengele]] becomes chief medical officer of the ''Zigeunerfamilienlager'' ([[Romani people|Romani]] family camp) at [[Auschwitz concentration camp]].
*[[1948]] &ndash; A dike along the [[1948 Columbia River flood|flooding]] [[Columbia River]] breaks, obliterating [[Vanport, Oregon]] within minutes. Fifteen people die and tens of thousands are left homeless.
*[[1958]] &ndash; Memorial Day: The remains of two unidentified American servicemen, killed in action during World War II and the [[Korean War]] respectively, are buried at the [[Tomb of the Unknowns|Tomb of the Unknown Soldier]] in [[Arlington National Cemetery]].
*[[1959]] &ndash; The [[Auckland Harbour Bridge]], crossing the [[Waitematā Harbour|Waitemata Harbour]] in [[Auckland]], New Zealand, is officially opened by [[Governor-General of New Zealand|Governor-General]] [[Charles Lyttelton, 10th Viscount Cobham]].
*[[1961]] &ndash; The long-time Dominican dictator [[Rafael Trujillo]] is assassinated in [[Santo Domingo]], Dominican Republic.
*  1961   &ndash; [[Viasa Flight 897]] crashes after takeoff from [[Lisbon Airport]], killing 61.<ref>{{Cite web |last=Ranter |first=Harro |title=ASN Aircraft accident Douglas DC-8-53 PH-DCL Fonte da Telha |url=https://aviation-safety.net/database/record.php?id=19610530-0 |access-date=2022-05-29 |website=aviation-safety.net |publisher=[[Aviation Safety Network]]}}</ref>
*[[1963]] &ndash; A protest against pro-Catholic discrimination during the [[Buddhist crisis]] is held outside [[South Vietnam]]'s National Assembly, the first open demonstration during the eight-year presidency of [[Ngo Dinh Diem]].
*[[1966]] &ndash; Former [[Democratic Republic of the Congo|Congolese]] Prime Minister, [[Évariste Kimba]], and several other politicians are publicly executed in [[Kinshasa]] on the orders of President [[Mobutu Sese Seko|Joseph Mobutu]].
*[[1967]] &ndash; The [[Nigeria]]n Eastern Region declares independence as the [[Biafra|Republic of Biafra]], sparking a [[Nigerian Civil War|civil war]].
*[[1968]] &ndash; [[Charles de Gaulle]] reappears publicly after his flight to [[Baden-Baden]], West Germany, and dissolves the French National Assembly by a radio appeal. Immediately after, less than one million of his supporters march on the [[Champs-Élysées]] in Paris. This is the turning point of [[May 1968 events in France]].<ref>{{cite magazine |last1=Birch |first1=Jonah |title=How Beautiful It Was |url=https://jacobin.com/2018/05/how-beautiful-it-was |access-date=6 December 2022 |magazine=[[Jacobin (magazine)|Jacobin]] |issue=29 |date=23 May 2018 |pages=46–48 |issn=2470-6930}}</ref>
*[[1971]] &ndash; [[Mariner program]]: ''[[Mariner 9]]'' is launched to map 70% of the surface, and to study temporal changes in the atmosphere and surface, of [[Mars]].
*[[1972]] &ndash; [[The Angry Brigade]] goes on trial over a series of 25 bombings throughout the United Kingdom.
*  1972   &ndash; In [[Ben Gurion Airport]] (at the time: [[Lod]] Airport), [[Israel]], members of the [[Japanese Red Army]] carry out the [[Lod Airport massacre]], killing 24 people and injuring 78 others.
*[[1974]] &ndash; The [[Airbus A300]] passenger aircraft first enters service.
*[[1975]] &ndash; [[European Space Agency]] is established.<ref>{{cite book |last1=Peaslee |first1=Amos Jenkins |title=International Governmental Organizations: Constitutional Documents |date=1979 |publisher=BRILL |isbn=978-90-247-2087-3 |page=166 |url=https://books.google.com/books?id=Tl4Ed_7rAZIC&pg=PA166 |language=en}}</ref>
*[[1979]] &ndash; [[Downeast Flight 46]] crashes on approach to [[Knox County Regional Airport]] in [[Rockland, Maine]], killing 17.<ref name="ASN">{{Cite web|title=ASN Aircraft accident de Havilland Canada DHC-6 Twin Otter 200 N68DE Rockland, ME|url=https://aviation-safety.net/database/record.php?id=19790530-0|last=Ranter|first=Harro|website=aviation-safety.net|publisher=[[Aviation Safety Network]]|access-date=2020-05-24}}</ref>
*[[1982]] &ndash; [[Cold War]]: [[Spain]] joins [[NATO]].
*[[1989]] &ndash; [[Tiananmen Square protests of 1989]]: The 10-metre high "[[Goddess of Democracy]]" [[statue]] is unveiled in [[Tiananmen Square]] by student demonstrators.
*[[1990]] &ndash; [[Croatian Parliament]] is constituted after the first free, multi-party elections, today celebrated as the [[National Day]] of [[Croatia]].
*[[1998]] &ndash; The 6.5 {{M|w}} [[May 1998 Afghanistan earthquake|Afghanistan earthquake]] shook the [[Takhar Province]] of northern [[Afghanistan]] with a maximum [[Mercalli intensity scale|Mercalli intensity]] of VII (''Very strong''), killing around 4,000–4,500.
*  1998   &ndash; [[Nuclear weapons testing|Nuclear Testing]]: Pakistan conducts an [[Chagai-II|underground test]] in the [[Kharan Desert]]. It is reported to be a [[plutonium]] device with yield of 20kt [[TNT equivalent]].
*[[2003]] &ndash; [[Depayin massacre]]: At least 70 people associated with the [[National League for Democracy]] are killed by government-sponsored mob in [[Burma]]. [[Aung San Suu Kyi]] flees the scene, but is arrested soon afterwards.
*[[2008]] &ndash; [[Convention on Cluster Munitions]] is adopted.
*  2008   &ndash; [[TACA Flight 390]] overshoots the runway at [[Toncontín International Airport]] in [[Tegucigalpa]], Honduras and crashes, killing five people.<ref>{{Cite web|url=https://aviation-safety.net/database/record.php?id=20080530-0|title=ASN Aircraft accident Airbus A320-233 EI-TAF Tegucigalpa-Toncontin Airport (TGU)|last=Ranter|first=Harro|website=aviation-safety.net|access-date=2019-10-17}}</ref>
*[[2012]] &ndash; Former [[Liberia]]n president [[Charles Taylor (Liberian politician)|Charles Taylor]] is sentenced to 50 years in prison for his role in atrocities committed during the [[Sierra Leone Civil War]].
*[[2013]] &ndash; [[Nigeria]] passes a law [[Same-sex marriage in Nigeria|banning same-sex marriage]].
*[[2020]] &ndash; The [[Crew Dragon Demo-2]] launches from the [[Kennedy Space Center]], becoming the first crewed orbital spacecraft to launch from the [[United States]] since 2011 and the first commercial flight to the [[International Space Station]].<ref name="NYT-20200530">{{cite news|last=Chang|first=Kenneth|date=30 May 2020|title=SpaceX Lifts NASA Astronauts to Orbit, Launching New Era of Spaceflight – The trip to the space station was the first from American soil since 2011 when the space shuttles were retired|work=The New York Times|url=https://www.nytimes.com/2020/05/30/science/spacex-nasa-astronauts.html|access-date=31 May 2020}}</ref>
*[[2024]] &ndash; [[Donald Trump]] is [[Prosecution of Donald Trump in New York|convicted of falsifying business records in his New York trial]], the first time a former [[President of the United States]] has been found guilty in a criminal case.<ref>{{cite web | url=https://www.politico.com/live-updates/2024/05/30/trump-hush-money-criminal-trial/merchan-thanks-jurors-00160786 | title=Merchan thanks jurors | website=[[Politico]] | date=30 May 2024 }}</ref><ref>{{Cite web |date=2024-05-31 |title=Donald Trump found guilty on all 34 felony counts in hush money trial: Highlights |url=https://www.nbcnews.com/politics/donald-trump/live-blog/trump-trial-jury-deliberations-hush-money-case-rcna154607 |access-date=2024-06-12 |website=NBC News |language=en}}</ref>