Editing April 26 (section)

===1901–present===
*[[1903]] &ndash; [[Atlético Madrid]] [[Association football]] club is founded.
*[[1915]] &ndash; [[World War I]]: [[Kingdom of Italy|Italy]] secretly signs the [[Treaty of London (1915)|Treaty of London]] pledging to join the [[Allies of World War I|Allied Powers]].<ref>{{Cite web|title=Treaty of London {{!}} European history [1915] {{!}} Britannica|url=https://www.britannica.com/event/Treaty-of-London|access-date=2022-01-10|website=www.britannica.com}}</ref>
*[[1916]] &ndash; [[Easter Rising]]: [[Battle of Mount Street Bridge]].<ref>{{cite news |date=27 April 2016 |title=Joe Clarke and the Battle of Mount Street Bridge |work=An Phoblacht |location= |url=https://www.anphoblacht.com/contents/25967 |access-date=30 May 2022}}</ref>
*[[1920]] &ndash; [[Ice hockey]] makes its Olympic debut at the [[1920 Summer Olympics|Antwerp Games]] with center [[Frank Fredrickson]] scoring seven goals in Canada's 12–1 drubbing of Sweden in the gold medal match.<ref>[https://www.newspapers.com/clip/55672106/winnipeg-falcons-191920/ "Winners in first Olympic ice hockey tournament"] ''Victoria Daily Times'', April 28, 1920 (p. 10). Retrieved 2020-07-27.</ref>
*[[1923]] &ndash; [[George VI|The Duke of York]] [[Wedding of Prince Albert, Duke of York, and Lady Elizabeth Bowes-Lyon|weds]] [[Queen Elizabeth The Queen Mother|Lady Elizabeth Bowes-Lyon]] at [[Westminster Abbey]].<ref>{{cite web |title=King George VI {{!}} The Canadian Encyclopedia |url=https://www.thecanadianencyclopedia.ca/en/article/king-george-vi |website=www.thecanadianencyclopedia.ca |access-date=4 December 2022}}</ref>
*[[1925]] &ndash; [[Paul von Hindenburg]] defeats [[Wilhelm Marx]] in the second round of the [[1925 German presidential election|German presidential election]] to become the first directly elected [[head of state]] of the [[Weimar Republic]].
*[[1933]] &ndash; The [[Gestapo]], the official [[secret police|secret police force]] of [[Nazi Germany]], is established by [[Hermann Göring]].
*[[1937]] &ndash; [[Spanish Civil War]]: [[Guernica]], Spain, is [[Bombing of Guernica|bombed]] by the German [[Condor Legion]] and the Italian [[Aviazione Legionaria]].
*[[1942]] &ndash; [[Benxihu Colliery]] accident in [[Manchukuo]] leaves 1,549 Chinese miners dead.
*[[1943]] &ndash; The [[Easter Riots]] break out in [[Uppsala]], Sweden.
*[[1944]] &ndash; [[Georgios Papandreou]] becomes head of the [[Greek government-in-exile]] based in [[Egypt]].
*  1944   &ndash; [[Heinrich Kreipe]] is captured by Allied commandos in [[Axis occupation of Greece|occupied Crete]].
*[[1945]] &ndash; [[World War II]]: [[Battle of Bautzen (1945)|Battle of Bautzen]]: Last successful German tank-offensive of the war and last noteworthy victory of the [[Wehrmacht]].
*  1945   &ndash; World War II: Filipino troops of the 66th Infantry Regiment, Philippine Commonwealth Army, USAFIP-NL and the American troops of the 33rd and 37th Infantry Division, United States Army liberate [[Baguio]] as they fight against the Japanese forces under General [[Tomoyuki Yamashita]].
*[[1954]] &ndash; The [[Geneva Conference (1954)|Geneva Conference]], an effort to restore peace in [[Indochina]] and Korea, begins.
*  1954   &ndash; The first clinical trials of [[Jonas Salk]]'s [[polio vaccine]] begin in [[Fairfax County, Virginia]].<ref>{{Cite web|date=2021-11-08|title=The school that pioneered polio shots will give kids the coronavirus vaccine, too|url=https://www.seattletimes.com/nation-world/the-school-that-pioneered-polio-shots-will-give-kids-the-covid-vaccine-too/|access-date=2022-01-10|website=The Seattle Times}}</ref> 
*[[1956]] &ndash; {{SS|Ideal X}}, the world's first successful [[container ship]], leaves [[Port Newark–Elizabeth Marine Terminal|Port Newark, New Jersey]], for [[Houston]], Texas.
*[[1958]] &ndash; Final run of the [[Baltimore and Ohio Railroad]]'s ''[[Royal Blue (train)|Royal Blue]]'' from Washington, D.C., to New York City after 68&nbsp;years, the first U.S. passenger train to use [[Railway electrification system|electric locomotives]].
*[[1960]] &ndash; Forced out by the [[April Revolution]], [[President of South Korea]] [[Syngman Rhee]] resigns after 12 years of [[First Republic of Korea|dictatorial rule]].
*[[1962]] &ndash; [[NASA]]'s [[Ranger 4]] spacecraft crashes into the [[Moon]].
*  1962   &ndash; The [[British space programme]] launches its first satellite, the [[Ariel 1]].<ref>{{Cite news|title=50 years since UK went into space|work=BBC News|url=https://www.bbc.com/news/av/uk-politics-17854280|access-date=2022-01-10}}</ref>
*[[1963]] &ndash; In [[Libya]], amendments to the constitution transform Libya (United Kingdom of Libya) into one national unity ([[Kingdom of Libya]]) and allows for female participation in elections.
*[[1964]] &ndash; [[Tanganyika (1961–1964)|Tanganyika]] and [[Zanzibar]] merge to form the [[Tanzania|United Republic of Tanzania]].
*[[1966]] &ndash; The magnitude 5.1 [[1966 Tashkent earthquake|Tashkent earthquake]] affects the largest city in [[Soviet Central Asia]] with a maximum [[Medvedev–Sponheuer–Karnik scale|MSK intensity]] of VII (''Very strong''). [[Tashkent]] is mostly destroyed and 15–200 are killed.
*  1966   &ndash; A new government is formed in the [[Republic of the Congo]], led by [[Ambroise Noumazalaye]].
*[[1970]] &ndash; The [[WIPO Convention|Convention Establishing the World Intellectual Property Organization]] enters into force.
*[[1981]] &ndash; Dr. [[Michael R. Harrison]] of the [[UCSF Medical Center|University of California, San Francisco Medical Center]] performs the world's first human open [[fetal surgery]].
*[[1986]] &ndash; The [[Chernobyl disaster]] occurs in the [[Ukrainian Soviet Socialist Republic]].
*[[1989]] &ndash; [[Daulatpur–Saturia tornado|The deadliest known tornado]] strikes Central Bangladesh, killing upwards of 1,300, injuring 12,000, and leaving as many as 80,000 homeless.
*  1989   &ndash; ''[[People's Daily]]'' publishes the [[April 26 Editorial]] which inflames the nascent [[Tiananmen Square protests of 1989|Tiananmen Square protests]].
*[[1991]] &ndash; [[1991 Andover tornado outbreak|Fifty-five tornadoes]] break out in the [[central United States]]. Before the outbreak's end, [[Andover, Kansas]], would record the year's only [[Fujita scale|F5]] tornado.
*[[1993]] &ndash; The [[Space Shuttle Columbia|Space Shuttle ''Columbia'']] is launched on mission [[STS-55]] to conduct experiments aboard the [[Spacelab]] module.<ref>{{Cite web |last=Lynda |first=Warnock |title=STS-55 |url=https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/archives/sts-55.html |access-date=2022-04-05 |website=www.nasa.gov |publisher=NASA}}</ref>
*[[1994]] &ndash; [[China Airlines Flight 140]] crashes at [[Nagoya Airfield|Nagoya Airport]] in Japan, killing 264 of the 271 people on board.
*  1994   &ndash; [[South Africa]] begins its [[1994 South African general election|first multiracial election]], which is won by [[Nelson Mandela]]'s [[African National Congress]].<ref>{{Cite news|last=Daley |first=Suzanne |date=2019-05-08|title=The Day Apartheid Died: Photos of South Africa's First Free Vote|work=The New York Times|url=https://www.nytimes.com/2019/05/08/world/africa/south-africa-1994-election-photos.html|access-date=2022-01-10 |issn=0362-4331}}</ref> 
*[[2002]] &ndash; Robert Steinhäuser [[Erfurt school massacre|kills 16]] at [[Gutenberg-Gymnasium Erfurt|Gutenberg-Gymnasium]] in [[Erfurt]], Germany before committing suicide.
*[[2005]] &ndash; [[Cedar Revolution]]: Under international pressure, [[Syria]] withdraws the last of its 14,000 troop military garrison in [[Lebanon]], ending its 29-year military domination of that country ([[Syrian occupation of Lebanon]]).
*[[2015]] &ndash; [[Nursultan Nazarbayev]] is re-elected [[President of Kazakhstan]] with 97.7% of the vote, one of the biggest vote shares in Kazakhstan's history.<ref>{{Cite web|last=Lillis|first=Joanna|date=2015-04-27|title=Kazakhstan: Nazarbayev Apologetic for Lopsided Election Results {{!}} Eurasianet|url=https://eurasianet.org/kazakhstan-nazarbayev-apologetic-for-lopsided-election-results|access-date=2021-01-29|website=eurasianet.org}}</ref>
*[[2025]] &ndash; A [[2025 Vancouver car attack|car ramming attack]] at a [[Lapulapu|Lapu-Lapu]] Day festival kills 11 people and injures at least 30 in [[Vancouver]], [[Canada]].<ref>{{Cite web |date=2025-04-27 |title=Murder charges filed against suspect in ramming attack on Vancouver street festival that killed 11 |url=https://apnews.com/article/canada-vancouver-filipino-festival-deaths-car-6635b400430a7015341d3ca0c4c1e7fb |access-date=2025-05-02 |website=AP News |language=en}}</ref>