Editing February 20 (section)

===1901–present===
*[[1901]] &ndash; The legislature of [[Territory of Hawaii|Hawaii Territory]] convenes for the first time.
*[[1905]] &ndash; The [[Supreme Court of the United States|U.S. Supreme Court]] upholds the constitutionality of [[Massachusetts]]'s mandatory [[Smallpox vaccine|smallpox vaccination]] program in ''[[Jacobson v. Massachusetts]]''.<ref>{{Cite web|title=Vaccines Fast Facts|url=https://www.cnn.com/2015/07/20/health/vaccines-fast-facts/index.html|publisher=CNN Editorial Research|access-date=2022-01-12|website=CNN|date=20 July 2015|archive-date=2022-01-12|archive-url=https://web.archive.org/web/20220112020723/https://www.cnn.com/2015/07/20/health/vaccines-fast-facts/index.html|url-status=live}}</ref>
*[[1909]] &ndash; Publication of the [[Futurist Manifesto]] in the French journal ''[[Le Figaro]]''.
*[[1913]] &ndash; [[King O'Malley]] drives in the first [[Surveying|survey]] peg to mark commencement of work on the construction of [[Canberra]].
*[[1920]] &ndash; [[1920 Gori earthquake|An earthquake]] kills between 114 and 130 in [[Democratic Republic of Georgia|Georgia]] and heavily damages the town of [[Gori, Georgia|Gori]].
*[[1931]] &ndash; The [[United States Congress|U.S. Congress]] approves the construction of the [[San Francisco–Oakland Bay Bridge]] by the state of [[California]].
*  1931 &ndash; An [[anarchist]] uprising in [[Encarnación, Paraguay]] briefly transforms the city into a [[Taking of Encarnación|revolutionary commune]].<ref name = "Vitale, Luis 1998, pg 13">{{cite book|last=Vitale|first=Luis|title=Contribución a una Historia del Anarquismo en América Latina|publisher= Ed. Instituto de Investigación de Movimientos Sociales "Pedro Vuskovic"|location=Santiago|year=1998|page=13|language=es}}</ref>
*[[1933]] &ndash; The [[United States Congress|U.S. Congress]] approves the [[Blaine Act]] to repeal federal [[Prohibition in the United States]], sending the [[Twenty-first Amendment to the United States Constitution]] to [[state ratifying conventions]] for approval.<ref>{{cite news|title=House Has Frenzied Day|work=The New York Times|date=February 21, 1933|pages=1, 11|postscript=none}}; {{cite book|last=Kyvig|first=David E.|title=Repealing National Prohibition|location=Kent, Ohio|publisher=Kent State University Press|date=2000|isbn=978-0-87338-672-2|url=https://books.google.com/books?id=XsYi06oDpHMC|page=182|access-date=2019-02-18|archive-date=2022-02-20|archive-url=https://web.archive.org/web/20220220084913/https://books.google.com/books?id=XsYi06oDpHMC|url-status=live}}</ref>
*  1933 &ndash; [[Adolf Hitler]] [[Secret Meeting of 20 February 1933|secretly meets]] with German industrialists to arrange for financing of the [[Nazi Party]]'s upcoming election campaign.
*[[1935]] &ndash; [[Caroline Mikkelsen]] becomes the first woman to set foot in Antarctica.
*[[1939]] &ndash; [[1939 Nazi rally at Madison Square Garden|Madison Square Garden Nazi rally]]: The largest ever pro-Nazi rally in United States history is convened in [[Madison Square Garden (1925)|Madison Square Garden]], New York City, with 20,000 members and sympathizers of the [[German American Bund]] present.<ref>{{cite magazine |url=https://www.rollingstone.com/politics/politics-news/madison-square-garden-nazis-796197/ |first1=Ryan |last1=Bort |title=When Nazis Took Over Madison Square Garden |magazine=Rolling Stone |date=19 February 2019 |archive-url=https://web.archive.org/web/20211207005412/https://www.rollingstone.com/politics/politics-news/madison-square-garden-nazis-796197/ |archive-date=7 December 2021 |url-status=live}}</ref>
*[[1942]] &ndash; [[World War II]]: Lieutenant [[Edward O'Hare]] becomes America's first World War II [[flying ace]].
*[[1943]] &ndash; World War II: American [[movie studio]] executives agree to allow the [[Office of War Information]] to censor movies.
*  1943 &ndash; ''[[The Saturday Evening Post]]'' publishes the first of [[Norman Rockwell]]'s ''[[Four Freedoms (Norman Rockwell)|Four Freedoms]]'' in support of United States President [[Franklin Roosevelt]]'s 1941 [[State of the Union address]] theme of [[Four Freedoms]].
*[[1944]] &ndash; World War II: The "[[Big Week]]" began with American bomber raids on German aircraft manufacturing centers.
*  1944 &ndash; World War II: The United States takes [[Eniwetok Atoll]].
*[[1952]] &ndash; [[Emmett Ashford]] becomes the first [[African-American]] [[umpire (baseball)|umpire]] in organized [[baseball]] by being authorized to be a substitute umpire in the Southwestern International League.
*[[1956]] &ndash; The [[United States Merchant Marine Academy]] becomes a permanent Service Academy.
*[[1959]] &ndash; The [[Avro Arrow]] program to design and manufacture [[supersonic]] [[fighter aircraft|jet fighters]] in Canada is cancelled by the [[John Diefenbaker|Diefenbaker]] government amid much political debate.
*[[1962]] &ndash; [[Mercury program]]: While aboard ''[[Friendship 7]]'', [[John Glenn]] becomes the first American to orbit the [[Earth]], making three orbits in four hours, 55 minutes.
*[[1965]] &ndash; [[Ranger 8]] crashes into the Moon after a successful mission of photographing possible landing sites for  the [[Apollo program]] [[astronaut]]s.
*[[1968]] &ndash; The [[China Academy of Space Technology]], China's main arm for the research, development, and creation of [[Satellite|space satellites]], is established in [[Beijing]].<ref>{{cite news |title=China Academy of Space Technology (CAST) |url=https://www.nti.org/learn/facilities/56/ |newspaper=[[Nuclear Threat Initiative]] |access-date=20 February 2021 |date=1 May 2003 |archive-date=8 January 2021 |archive-url=https://web.archive.org/web/20210108175933/https://www.nti.org/learn/facilities/56/ |url-status=dead }}</ref>
*[[1971]] &ndash; The United States [[Emergency Broadcast System]] is accidentally activated in an erroneous national alert.
*[[1979]] &ndash; An [[earthquake]] cracks open the ''Sinila'' [[volcanic crater]] on the [[Dieng Plateau]], releasing poisonous H<sub>2</sub>S gas and killing 149 villagers in the [[Indonesia]]n province of [[Central Java]].
*[[1986]] &ndash; The [[Soviet Union]] launches its [[Mir]] spacecraft. Remaining in orbit for 15 years, it is occupied for ten of those years.
*[[1988]] &ndash; The [[Nagorno-Karabakh Autonomous Oblast]] votes to secede from [[Azerbaijan]] and join [[Armenia]], triggering the [[First Nagorno-Karabakh War]].
*[[1991]] &ndash; In the Albanian capital [[Tirana]], a gigantic statue of [[Albania]]'s long-time leader, [[Enver Hoxha]], is brought down by mobs of angry protesters.
*[[1998]] &ndash; American figure skater [[Tara Lipinski]], at the age of 15, becomes the youngest Olympic figure skating gold-medalist at the [[1998 Winter Olympics]] in [[Nagano, Nagano|Nagano]], Japan.
*[[2003]] &ndash; During a [[Great White]] concert in [[West Warwick, Rhode Island]], a [[pyrotechnics]] display [[The Station nightclub fire|sets the Station nightclub ablaze]], killing 100 and injuring over 200 others.<ref>{{cite web |title=The Station nightclub fire {{!}} Description & Facts  |url=https://www.britannica.com/event/The-Station-nightclub-fire |website=Britannica |access-date=18 June 2022 |language=en}}</ref><ref>{{cite web |last1=Hahn |first1=Jason |title=Survivor of the Rhode Island Station Nightclub Fire Rebuilds His Life 14 Years Later |url=https://people.com/human-interest/survivor-rhode-island-station-nightclub-fire-rebuilds-life/ |date=August 10, 2017 |website=PEOPLE.com |access-date=18 June 2022 |language=en |url-status=dead |archive-url=https://web.archive.org/web/20220618124813/https://people.com/human-interest/survivor-rhode-island-station-nightclub-fire-rebuilds-life/ |archive-date= 18 June 2022 }}</ref>
*[[2005]] &ndash; Spain becomes the first country to vote in a [[2005 Spanish European Constitution referendum|referendum on ratification]] of the [[Treaty establishing a Constitution for Europe|proposed Constitution]] of the [[European Union]], passing it by a substantial margin, but on a low turnout.
*[[2009]] &ndash; [[2009 suicide air raid on Colombo|Two Tamil Tigers aircraft packed with C4 explosives]] en route to the national airforce headquarters are shot down by the Sri Lankan military before reaching their target, in a [[kamikaze]] style attack.
*[[2010]] &ndash; In Madeira Island, Portugal, heavy rain causes [[2010 Madeira floods and mudslides|floods and mudslides]], resulting in at least 43 deaths, in the worst disaster in the [[history of Madeira|history of the archipelago]].
*[[2014]] &ndash; Dozens of [[Euromaidan]] anti-government protesters [[Maidan casualties|died]] in Ukraine's capital [[Kyiv]], many reportedly killed by snipers.
*[[2015]] &ndash; Two [[Rafz train crash|trains collide]] in the Swiss town of [[Rafz]] resulting in as many as 49 people injured and [[Swiss Federal Railways]] cancelling some services.
*[[2016]] &ndash; Six people are killed and two injured in [[2016 Kalamazoo shootings|multiple shooting incidents]] in [[Kalamazoo County, Michigan]].<ref>{{cite web |title=Jason Dalton: Former Uber driver pleads guilty to shooting six people dead in Michigan |first1=Sarah |last1=Harvard |url=https://www.independent.co.uk/news/world/americas/us-politics/jason-dalton-guilty-kalamazoo-shooting-michigan-uber-driver-shooter-victims-a8716411.html |website=The Independent |access-date=23 June 2020 |language=en |date=7 January 2019 |archive-date=23 June 2020 |archive-url=https://web.archive.org/web/20200623094244/https://www.independent.co.uk/news/world/americas/us-politics/jason-dalton-guilty-kalamazoo-shooting-michigan-uber-driver-shooter-victims-a8716411.html |url-status=live }}</ref>