Editing April 25 (section)

===1901–present===
*[[1901]] &ndash; [[Vehicle registration plates of New York|New York becomes the first U.S. state to require automobile license plates]].
*[[1915]] &ndash; [[World War I]]: The [[Battle of Gallipoli]] begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at [[Landing at Anzac Cove|Anzac Cove]] and [[Landing at Cape Helles|Cape Helles]].
*[[1916]] &ndash; [[Anzac Day]] is commemorated for the first time on the first anniversary of the landing at ANZAC Cove.
*[[1920]] &ndash; At the [[San Remo conference]], the principal [[Allies of World War I|Allied Powers of World War I]] adopt a resolution to determine the allocation of Class "A" [[League of Nations mandate]]s for administration of the former [[Ottoman Empire|Ottoman]]-ruled lands of the Middle East.
*[[1933]] &ndash; [[Nazi Germany]] issues the Law Against Overcrowding in Schools and Universities limiting the number of Jewish students able to attend public schools and universities.<ref>{{Cite web|title=Law Limits Jews in Public Schools |url=https://www.ushmm.org/learn/timeline-of-events/1933-1938/law-limits-jews-in-public-schools|access-date=2022-01-10|website=United States Holocaust Memorial Museum }}</ref>
*[[1938]] &ndash; [[U.S. Supreme Court]] delivers its opinion in ''[[Erie Railroad Co. v. Tompkins]]'' and overturns a century of federal common law.
*[[1944]] &ndash; The [[United Negro College Fund]] is incorporated.
*[[1945]] &ndash; [[World War II]]: [[United States Armed Forces|United States]] and [[Soviet Armed Forces|Soviet]] reconnaissance troops meet in [[Torgau]] and [[Strehla]] along the River [[Elbe]], cutting the ''[[Wehrmacht]]'' of [[Nazi Germany]] in two. This would be later known as [[Elbe Day]].
*  1945   &ndash; World War II: [[Liberation Day (Italy)]]: The [[National Liberation Committee for Northern Italy]] calls for a general uprising against the German occupation and the [[Italian Social Republic]].
*  1945   &ndash; [[United Nations Conference on International Organization]]: Founding negotiations for the [[United Nations]] begin in [[San Francisco]].
*  1945   &ndash; World War II: The last German troops retreat from Finnish soil in Lapland, ending the [[Lapland War]]. Military actions of the Second World War end in Finland.
*[[1951]] &ndash; [[Korean War]]: Assaulting Chinese forces are forced to withdraw after heavy fighting with UN forces, primarily made up of Australian and Canadian troops, at the [[Battle of Kapyong]].
*[[1953]] &ndash; [[Francis Crick]] and [[James Watson]] publish "[[Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid]]" describing the [[double helix]] structure of [[DNA]].
*[[1954]] &ndash; The first practical [[Solar cell#History|solar cell]] is publicly demonstrated by [[Bell Labs|Bell Telephone Laboratories]].
*[[1959]] &ndash; The [[Saint Lawrence Seaway]], linking the North American [[Great Lakes]] and the Atlantic Ocean, officially opens to shipping.
*[[1960]] &ndash; The United States Navy submarine {{USS|Triton|SSRN-586|6}} completes the [[Operation Sandblast|first submerged circumnavigation of the globe]].
*[[1961]] &ndash; [[Robert Noyce]] is granted a [[patent]] for an [[integrated circuit]].
*[[1972]] &ndash; [[Vietnam War]]: [[Nguyen Hue Offensive]]: The [[North Vietnam]]ese 320th Division forces 5,000 [[South Vietnam]]ese troops to retreat and traps about 2,500 others northwest of [[Kontum]].
*[[1974]] &ndash; [[Carnation Revolution]]: A leftist military [[coup]] in Portugal overthrows the authoritarian-conservative ''[[Estado Novo (Portugal)|Estado Novo]]'' regime.
*[[1980]] &ndash; One hundred forty-six people are killed when [[Dan-Air Flight 1008]] crashes near [[Tenerife North–Ciudad de La Laguna Airport|Los Rodeos Airport]] in [[Tenerife]], [[Canary Islands]].<ref>{{Cite web |last=Ranter |first=Harro |title=ASN Aircraft accident Boeing 727-46 G-BDAN Esperanzo Forest |url=https://aviation-safety.net/database/record.php?id=19800425-0 |access-date=2022-04-24 |website=aviation-safety.net |publisher=[[Aviation Safety Network]]}}</ref>
*[[1981]] &ndash; More than 100 workers are exposed to radiation during repairs of at the [[Tsuruga Nuclear Power Plant]] in Japan.
*[[1982]] &ndash; [[Israel]] completes its withdrawal from the [[Sinai Peninsula]] per the [[Camp David Accords]].
*[[1983]] &ndash; [[Cold War]]: American schoolgirl [[Samantha Smith]] is invited to visit the [[Soviet Union]] by its leader [[Yuri Andropov]] after he read her letter in which she expressed fears about [[nuclear warfare|nuclear war]].
*  1983   &ndash; ''[[Pioneer 10]]'' travels beyond [[Pluto]]'s orbit.
*[[1990]] &ndash; [[Violeta Chamorro]] takes office as the [[President of Nicaragua]], the first woman to hold the position.
*[[2001]] &ndash; President [[George W. Bush]] pledges U.S. military support in the event of a Chinese attack on Taiwan.<ref>{{Cite web|date=2016-10-07|title=George W. Bush - Key Events {{!}} Miller Center|url=https://millercenter.org/president/george-w-bush/key-events|access-date=2022-01-11|website=millercenter.org|language=en}}</ref> 
*[[2004]] &ndash; The [[March for Women's Lives]] brings over one million protesters, mostly pro-choice, to Washington D.C. to protest the [[Partial-Birth Abortion Ban Act]] of 2003, and other restrictions on [[abortion]].<ref>{{Cite web |date=2014-04-25 |title=Flashback: Over One Million March for Women's Lives {{!}} National Organization for Women |url=https://now.org/blog/over-one-million-march-for-womens-lives/ |access-date=2024-04-26 |website=now.org |language=en-US}}</ref>
*[[2005]] &ndash; The final piece of the [[Obelisk of Axum]] is returned to [[Ethiopia]] after being stolen by the invading Italian army in [[1937]].
*  2005   &ndash; A seven-car commuter train [[Amagasaki derailment|derails and crashes into an apartment building]] near [[Amagasaki Station (JR West)|Amagasaki Station]] in Japan, killing 107, including the driver.<ref name="journal465">{{cite journal |last=Nagase |first=Kazuhiko |date=July 2005 |title=福知山線脱線事故の問題を語る |trans-title=Discussing the problems of the Fukuchiyama Line derailment |journal=Railway Journal |location=Japan |publisher=Tetsudō Journal |volume=39 |issue=465 |pages=68–73}}</ref>
*  2005   &ndash; [[Bulgaria]] and [[Romania]] sign the [[Treaty of Accession 2005]] to join the [[European Union]].
*[[2007]] &ndash; [[Death and state funeral of Boris Yeltsin|Boris Yeltsin's funeral]]: The first to be sanctioned by the [[Russian Orthodox Church]] for a head of state since the funeral of Emperor [[Alexander III of Russia|Alexander III]] in 1894.
*[[2014]] &ndash; The [[Flint water crisis]] begins when officials at [[Flint, Michigan]] switch the city's water supply to the [[Flint River (Michigan)|Flint River]], leading to [[Lead poisoning|lead]] and [[Legionnaires' disease|bacteria contamination]].<ref name="startdate">{{Cite news |last=Kennedy |first=Merrit |date=April 20, 2016 |title=Lead-Laced Water In Flint: A Step-By-Step Look At The Makings Of A Crisis |language=en |work=NPR |url=https://www.npr.org/sections/thetwo-way/2016/04/20/465545378/lead-laced-water-in-flint-a-step-by-step-look-at-the-makings-of-a-crisis |access-date=May 8, 2018}}</ref>
*[[2015]] &ndash; At least 8,962 are killed in Nepal after [[April 2015 Nepal earthquake|a massive 7.8 magnitude earthquake strikes Nepal]].<ref>{{Cite web |title=Nepal Disaster Risk Reduction Portal |url=http://drrportal.gov.np/ |access-date=2024-04-26 |website=drrportal.gov.np}}</ref>