Editing April 17 (section)

===1901–present===
*[[1905]] &ndash; The [[Supreme Court of the United States]] decides ''[[Lochner v. New York]]'', which holds that the "[[Freedom of contract|right to free contract]]" is implicit in the [[Due process|due process clause]] of the [[Fourteenth Amendment to the United States Constitution]].
*[[1907]] &ndash; The [[Ellis Island]] immigration center processes 11,747 people, more than on any other day.
*[[1912]] &ndash; [[Russian Empire|Russian]] troops [[Lena massacre|open fire]] on striking goldfield workers in northeast [[Siberia]], killing at least 150.
*[[1925]] &ndash; The [[Communist Party of Korea]] (CPK) was founded in [[Korea under Japanese rule|Japanese-ruled Korea]] (Chōsen) in [[Keijō]] (now [[Seoul]]) by [[Kim Yong-bom]] and [[Pak Hon-yong]].<ref>{{cite journal|url=https://muse.jhu.edu/article/9177|title=The Demise of Non-Communist Parties in North Korea (1945–1960)|first=Andrei N.|last=Lankov| author-link = Andrei Lankov|date=1 January 2001|journal=Journal of Cold War Studies|volume=3|issue=1|pages=103–125|doi=10.1162/15203970151032164|s2cid=57570755|via=Project MUSE}}</ref>
*[[1931]] &ndash; After negotiations between Catalan and Spanish provisional governments, the [[Catalan Republic (1931)|Catalan Republic]] proclaimed in April 14 becomes the [[Generalitat de Catalunya]], the autonomous government of [[Catalonia]] within the [[Second Spanish Republic|Spanish Republic]].<ref>{{cite web |title=República Catalana |url=https://www.enciclopedia.cat/EC-GEC-0054960.xml |website=enciclopèdia.cat |access-date=6 October 2019}}</ref>
*[[1941]] &ndash; [[World War II]]: The Axis powers [[invasion of Yugoslavia]] is completed when it signs an armistice with Germany and Italy.
*[[1942]] &ndash; French [[prisoner of war]] General [[Henri Giraud]] escapes from his castle prison in [[Königstein Fortress]].
*[[1944]] &ndash; Forces of the Communist-controlled [[Greek People's Liberation Army]] attack the smaller [[National and Social Liberation]] resistance group, which surrenders. Its leader [[Dimitrios Psarros]] is murdered.
*[[1945]] &ndash; World War II: [[Montese]], Italy, is liberated from [[Nazi]] forces.
*  1945 &ndash; Historian [[Tran Trong Kim]] is appointed the Prime Minister of the [[Empire of Vietnam]].
*[[1946]] &ndash; The [[Evacuation Day (Syria)|last French troops are withdrawn]] from [[Mandatory Syrian Republic|Syria]].
*[[1951]] &ndash; The [[Peak District]] becomes the United Kingdom's first [[National parks of England and Wales|National Park]].
*[[1961]] &ndash; [[Bay of Pigs Invasion]]: A group of [[Cuban exile]]s financed and trained by the [[Central Intelligence Agency|CIA]] lands at the [[Bay of Pigs]] in Cuba with the aim of ousting [[Fidel Castro]].
*[[1964]] &ndash; [[Jerrie Mock]] completes the first around-the-world airplane flight by a woman. Her solo flight in the ''[[Spirit of Columbus]]'', which took 29 1/2 days, took off and landed at the [[Port Columbus International Airport]] in Ohio. <ref name="SI">{{cite web |last1=Cheng |first1=Lucia |title=Who Was the First Woman to Fly Solo Around the World? |url=https://www.smithsonianmag.com/smithsonian-institution/who-was-the-first-woman-to-fly-solo-around-the-world-180980542/ |website=Smithsonian Magazine |publisher=Smithsonian Institution |access-date=14 August 2022 |date=12 August 2022}}</ref> 
*[[1969]] &ndash; [[Sirhan Sirhan]] is convicted of assassinating [[Robert F. Kennedy]].
*  1969 &ndash; [[Communist Party of Czechoslovakia]] chairman [[Alexander Dubček]] is deposed.
*[[1970]] &ndash; [[Apollo program]]: The damaged [[Apollo 13]] spacecraft returns to [[Earth]] safely.
*[[1971]] &ndash; The [[Provisional Government of Bangladesh]] is formed.
*[[1975]] &ndash; The [[Cambodian Civil War]] ends. The [[Khmer Rouge]] [[Fall of Phnom Penh|captures]] the capital [[Phnom Penh]] and [[Khmer National Armed Forces|Cambodian government forces]] surrender.
*[[1978]] &ndash; [[Mir Akbar Khyber]] is assassinated, provoking the [[Saur Revolution]] in [[Afghanistan]].<ref name="Arnold">{{cite book |url=https://books.google.com/books?id=cd85ioPsz6cC&pg=PA180|last=Arnold|first=Anthony|title=Afghanistan's Two-Party Communism: Parcham and Khalq|series=Histories of Ruling Communist Parties|page=180|publisher=[[Hoover Institution Press]], [[Stanford University]]|location=[[Stanford, California]]|year=1983|isbn=0-8179-7792-9|access-date=25 August 2021}}</ref>
*[[1982]] &ndash; [[Constitution Act, 1982]] [[Patriation]] of the [[Canadian constitution]] in [[Ottawa]] by [[Proclamation]] of [[Elizabeth II]], [[Queen of Canada]].
*[[1986]] &ndash; An alleged state of [[Three Hundred and Thirty Five Years' War|war lasting 335 years]] between the [[Netherlands]] and the [[Isles of Scilly]] declared peace bringing an end to any hypothetical war that may have been legally considered to exist.<ref>{{Cite news |url=https://www.nytimes.com/1986/04/18/world/dutch-proclaim-end-of-war-against-britain-s-scilly-isles.html |title=Dutch Proclaim End of War Against Britain's Scilly Isles |date=1986-04-18 |work=The New York Times |access-date=2022-12-05 |agency=Associated Press |issn=0362-4331}}</ref><ref>{{cite magazine |url=http://www.time.com/time/magazine/article/0,9171,961310,00.html |title=Britain: Peace in Our Time |magazine=Time |date=1986-04-28 |accessdate=2022-12-05 |url-status=dead |archiveurl=https://web.archive.org/web/20130824213556/http://www.time.com/time/magazine/article/0,9171,961310,00.html |archivedate=24 August 2013 }} {{subscription required}}</ref>
*[[1992]] &ndash; The ''[[Katina P]]'' is deliberately run aground off [[Maputo]], [[Mozambique]], and 60,000 tons of crude oil spill into the ocean.<ref>{{cite journal|date=May 1992|title=Oil disaster as tanker runs aground and sinks in Mozambique Channel|journal=Baobab News|volume=1|issue=7|location=South Dearborn, Chicago|publisher=Mozambique Solidarity Office|access-date=18 September 2012|url=http://www.historicalvoices.org/pbuilder/pbfiles/Project39/Scheme361/african_activist_archive-a0b1z2-a_12419.pdf|archive-url=https://web.archive.org/web/20120301032059/http://www.historicalvoices.org/pbuilder/pbfiles/Project39/Scheme361/african_activist_archive-a0b1z2-a_12419.pdf|archive-date=1 March 2012|url-status=dead}}</ref>
*[[1998]] &ndash; [[Space Shuttle Columbia|Space Shuttle ''Columbia'']] is launched on [[STS-90]], the final [[Spacelab]] mission.<ref name="NASA">{{Cite web |title=STS-90 |url=https://www.nasa.gov/mission/sts-90/ |access-date=2024-06-17 |website=NASA}}</ref>
*[[2003]] &ndash; [[Anneli Jäätteenmäki]] takes office as the first female [[prime minister of Finland]].<ref>{{cite web|access-date=17 April 2023|date=17 April 2003|language=fi|title=Pääministeri Anneli Jäätteenmäki|url=https://www.hs.fi/kotimaa/art-2000004134474.html|url-access=subscription|work=[[Helsingin Sanomat]]}}</ref>
*[[2006]] &ndash; A [[Palestinians|Palestinian]] suicide bomber [[2nd Rosh Ha'ir restaurant bombing|detonates an explosive device in a Tel Aviv restaurant]], killing 11 people and injuring 70.
*[[2013]] &ndash; [[West Fertilizer Company explosion|An explosion]] at a fertilizer plant in the city of [[West, Texas]], kills 15 people and injures 160 others.
*[[2014]] &ndash; [[NASA]]'s [[Kepler space telescope]] confirms the discovery of [[Kepler-186f|the first Earth-size planet]] in the [[Circumstellar habitable zone|habitable zone]] of another star.
*[[2021]] &ndash; The [[Death and funeral of Prince Philip, Duke of Edinburgh|funeral of Prince Philip, Duke of Edinburgh]], takes place at [[St George's Chapel, Windsor Castle]].