26 March
752 – Rome – Stephen II became Pope. http://en.wikipedia.org/wiki/Pope_Stephen_II
1027 – Holy Roman Empire – Conrad II became Holy Roman Emperor. http://en.wikipedia.org/wiki/Conrad_II,_Holy_Roman_Emperor
1344 – Spain – Siege of Algeciras ended (Reconquista). https://en.wikipedia.org/wiki/Siege_of_Algeciras_(1342%E2%80%9344)
1351 – France – Combat of the Thirty in Britanny. http://en.wikipedia.org/wiki/Combat_of_the_Thirty
1636 – Netherlands – Utrecht University founded. http://www.uu.nl/university/utrecht/EN/profile/history/Pages/SolIustitiaeIllustraNos.aspx
1812 – Venezuela – Earthquake measuring 7.7Mw, epicentre Caracas, 20,000 killed. https://en.wikipedia.org/wiki/1812_Caracas_earthquake
1830 – USA – Book of Mormon published. https://en.wikipedia.org/wiki/Book_of_Mormon
1839 – UK – First Henley Royal Regatta held. https://www.hrr.co.uk/history http://www.rowinghistory.net/HRR%20US/hrr_1839-1939.htm https://en.wikipedia.org/wiki/Henley_Royal_Regatta
1862 – USA – Battle of Glorieta Pass began (American Civil War). https://youtu.be/j9alQGIg9RI http://www.civilwar.org/battlefields/glorieta-pass.html
1872 – USA – Earthquake measuring 7.6Mw, epicentre in Owens Valley, California, 27 killed. http://www.livescience.com/28069-owens-valley-california-earthquake-risk.html
1885 – Canada – Battle of Duck Lake (North-West Rebellion). http://firstpeoplesofcanada.com/fp_metis/fp_metis_ducklake.html https://en.wikipedia.org/wiki/Battle_of_Duck_Lake
1913 – Ottoman Empire – Siege of Andrianople ended (First Balkan War). https://en.wikipedia.org/wiki/Siege_of_Adrianople_(1912%E2%80%9313)
1917 – Palestine – First Battle of Gaza (WWI). https://en.wikipedia.org/wiki/First_Battle_of_Gaza
1920 – Nagorno-Karabakh – Shusha Massacre ended. https://en.wikipedia.org/wiki/Shusha_massacre
1931 – Switzerland – SwissAir Founded. http://www.flightglobal.com/blogs/aircraft-pictures/2009/03/on-this-day-in-1931-swissair-f/
1934 – UK – Driving test introduced, but not compulsory until 1935. https://www.gov.uk/government/publications/history-of-road-safety-and-the-driving-test/history-of-road-safety-the-highway-code-and-the-driving-test
1936 – Mexico – Mexicana de Aviación plane crashed near Amencameca de Juárez, 14 killed. http://aviation-safety.net/database/record.php?id=19360326-0
1939 – USA – Braniff International Airways Flight 1 crashed near Oklahoma City Municipal Air Terminal, OK, 8 killed. http://aviation-safety.net/database/record.php?id=19390326-0
1939 – Spain – Final Offensive of the Spanish Civil War began. https://en.wikipedia.org/wiki/Final_offensive_of_the_Spanish_Civil_War
1942 – Germany – RAF bombers attacked Essen. http://ww2db.com/battle_spec.php?battle_id=55/Bombing-of-Hamburg-Dresden-and-Other-Cities-World-War-II-Database
1942 – Poland – First female prisoners arrived at Auschwitz concentration camp. http://www.jewishgen.org/forgottencamps/camps/auschwitzeng.html
1944 – Burma – Battle of Sangshak ended (WWII). https://en.wikipedia.org/wiki/Battle_of_Sangshak
1944 – USA – USAAF plane crashed near Amarillo AAF, Texas, 7 killed (WWII). http://aviation-safety.net/database/record.php?id=19440326-0
1945 – Japan – Battle of Iwo Jima ended (WWII). https://youtu.be/JOy6yRAB6BY WARNING! Video contains scenes some viewers may find distressing https://en.wikipedia.org/wiki/Battle_of_Iwo_Jima
1946 – Hong Kong – RAF plane crashed at Lantau Island, 4 killed. http://aviation-safety.net/database/record.php?id=19460326-0
1950 – Singapore – RAF plane crashed at Seletar SPB, 2 killed. http://aviation-safety.net/database/record.php?id=19500326-0
1951 – Argentina – Aerolineas Argentinas plane crashed near Río Grande, TF, 11 killed. http://aviation-safety.net/database/record.php?id=19510326-0
1952 – USSR – Aeroflot & Soviet Air Force planes crashed at Tula Airport, 70 killed. http://aviation-safety.net/database/record.php?id=19520326-2
1955 – Mexico – Summer II Pan American Games ended. https://en.wikipedia.org/wiki/1955_Pan_American_Games
1955 – USA – Pan Am Flight 845/26 crashed off coast of Oregon, 4 killed. http://aviation-safety.net/database/record.php?id=19550326-0 http://portland.daveknows.org/2011/03/26/march-26-1955-pan-am-flight-84526-crashes-off-oregon-coast/
1958 – USA – Explorer 3 launched. http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1958-003A
1966 – South Vietnam – Buddhist Uprising began. https://en.wikipedia.org/wiki/Buddhist_Uprising
1971 – East Pakistan – Bangladesh Liberation War began with start of Operation Searchlight. https://en.wikipedia.org/wiki/Operation_Searchlight https://en.wikipedia.org/wiki/Bangladesh_Liberation_War
1971 – USA – Salad Bowl Strikes ended. https://en.wikipedia.org/wiki/Salad_Bowl_strike
1979 – USA – Israel-Egypt Peace Treaty signed. https://en.wikipedia.org/wiki/Egypt%E2%80%93Israel_Peace_Treaty
1981 – UK – Social Democratic Party founded. https://en.wikipedia.org/wiki/Social_Democratic_Party_(UK)
1991 – Paraguay – Treaty of Asunción signed. https://en.wikipedia.org/wiki/Treaty_of_Asunci%C3%B3n
1995 – Argentina – Summer XII Pan American Games ended. https://en.wikipedia.org/wiki/1995_Pan_American_Games
1997 – USA – Heaven’s Gate Cult mass suicide. https://youtu.be/ca2LhJdlK3U WARNING! Video contains scenes some viewers may find distressing https://en.wikipedia.org/wiki/Heaven%27s_Gate_(religious_group)#Mass_suicide_and_aftermath
1998 – Algeria – Oued Bouaicha Massacre, 52 killed. http://en.wikipedia.org/wiki/Oued_Bouaicha_massacre
2006 – Australia – XVIII Commonwealth Games in Melbourne ended. https://en.wikipedia.org/wiki/2006_Commonwealth_Games
2010 – South Korea – ROKS Cheonan sank off coast, 46 killed. http://www.bbc.co.uk/news/10130909
York
1749 – Josiah Feam, Thomas Brown alias Clark and Sanderson, and Robert Fawthorp were executed at Tyburn Gallows.
1792 – Elizabeth Elliot was executed at Tyburn Gallows.