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{{Day}} April 1 is most notable in the Western world for being [[April Fools' Day]].

==Events==
* [[527]] - [[Byzantine Emperors|Byzantine Emperor]] [[Justin I]] names his nephew [[Justinian I]] as co-ruler and successor to the throne.
*[[1318]] - [[Berwick-upon-Tweed]] is captured by the [[Scotland|Scottish]] from the [[England|English]].
*[[1340]] - [[Niels Ebbesen]] kills [[Gerhard III of Holstein]] in his bedroom, ending the 1332-1340 [[interregnum]] in [[Denmark]].
*[[1572]] - In the [[Eighty Years' War]], the [[Geuzen|Watergeuzen]] capture [[Brielle]] from the [[Spanish Empire|Spaniards]], gaining the first foothold on land for what would become the [[Dutch Republic]].
*[[1789]] - In [[New York City]], the [[United States House of Representatives]] holds its first quorum and elects [[Frederick Muhlenberg]] of [[Pennsylvania]] as its first [[House Speaker]].
*[[1826]] - [[Samuel Morey]] patents the [[internal combustion engine]].
*[[1854]] - ''[[Hard Times]]'' begins serialisation in [[Charles Dickens]] magazine, ''Household Words''.
*[[1857]] - [[Herman Melville]] publishes ''[[The Confidence-Man]]''.
*[[1865]] - [[American Civil War]]: [[Battle of Five Forks]] - In [[Siege of Petersburg]], [[Confederate States of America|Confederate]] [[General]] [[Robert E. Lee]] begins his final offensive.
*[[1867]] - [[Singapore]] becomes
a [[United Kingdom of Great Britain and Ireland|British]] [[crown colony]].
*[[1868]] - [[Hampton University|Hampton Normal and Agricultural Institute]] is established in [[Hampton, Virginia]].
*[[1873]] - The [[United Kingdom of Great Britain and Ireland|British]] steamer [[SS Atlantic|SS ''Atlantic'']] sinks off [[Nova Scotia]], killing 547.
*[[1891]] - The [[Wrigley Company]] is founded in [[Chicago|Chicago, Illinois]].
*[[1893]] - The [[United States]] [[Navy]] rank of [[Chief Petty Officer]] is created.
*[[1907]] - [[Hurlstone Agricultural High School]] is founded.
*[[1912]] - The Greek athlete [[Konstantinos Tsiklitiras]] breaks the world record in [[standing long jump]] jumping 3.47 meters.
*[[1918]] - The [[Royal Flying Corps]] is replaced by the [[Royal Air Force]].
*[[1924]] - [[Adolf Hitler]] is sentenced to five years in
[[Prison|jail]] for his participation in the "[[Beer Hall Putsch]]." However, he spends only nine months in jail, during which he writes the book ''[[Mein Kampf]]''.
* 1924 - First revenue flight for [[Belgium]]'s [[Sabena]] Airlines
*[[1924]] - The [[Royal Canadian Air Force]] is formed.
*[[1933]] - The recently elected [[Nazism|Nazis]] under [[Julius Streicher]] organize a one-day boycott of all [[Jewish]]-owned businesses in [[Germany]], ushering in the series of [[anti-Semitism|anti-Semitic]] acts that will be known as the [[Holocaust]].
*[[1934]] - [[Bonnie and Clyde]] kill two young highway patrolmen near [[Grapevine, Texas]].
*[[1936]] - [[Orissa]] Formation of the Indian state orissa(1936), formerly known as [[UTKAL]].
*[[1937]] - [[Aden]] becomes a [[United Kingdom of Great Britain and Northern Ireland|British]] [[crown colony]].
*[[1939]] - [[Generalissimo|Generalísimo]] [[Francisco Franco]] of the [[Spanish State]] announced the end of the [[Spanish Civil War]], when the last of the [[Second Spanish Republic|Republican]] forces surrendered.
*[[1941]] - The [[Blockade Runner Badge]] for [[Germany|German]] navy is instituted.
*[[1944]] - Accidental [[United States|American]] bombing of the [[Switzerland|Swiss]] city of [[Schaffhausen]]. The bombers were lost.
*[[1945]] - [[World War II]]: [[Battle of Okinawa|Operation Iceberg]] - [[United States]] troops land on [[Okinawa]] in the last campaign of the war.
*[[1946
]] - [[Aleutian Island earthquake]]: A 7.8 magnitude [[earthquake]] near the [[Aleutian Islands]] creates a [[tsunami]] that strikes the [[Hawaiian Islands]] killing 159 (mostly in [[Hilo, Hawaii]]).
* 1946 - Formation of the [[Malayan Union]].
*[[1948]] - [[Cold War]]: [[Berlin Airlift]] - [[Military forces]], under direction of the [[Soviet]]-controlled [[government]] in [[East Germany]], set-up a land blockade of [[West Berlin]].
* 1948 - [[Faroe Islands]] receive [[self-governance|autonomy]] from [[Denmark]].
*[[1949]] - [[Chinese Civil War]]: [[Communist Party of China]] hold unsuccessful peace talks with the [[Kuomintang]] in [[Beijing]], after three years of fighting.
* 1949 - The twenty-six counties of the [[Irish Free State]] become the [[Republic of Ireland]].
*[[1954]] - [[President]] [[Dwight D. Eisenhower]] authorizes the creation of the [[United States Air Force Academy]] in [[Colorado]].
*[[1955]] - The [[EOKA]] rebellion starts in [[Cyprus]], aiming at the island's independence from the [[United Kingdom]].
*[[1963]] - The [[Soap Opera]] [[General Hospital]] debuted
*[[1967]] - The [[United States Department of Transportation]] begins operation.
*[[1969]] - The [[Hawker Siddeley Harrier]] enters service with the [[Royal Air Force|RAF]].
*[[1970]] - [[President]] [[Richard Nixon]] signs the [[Public Health Cigarette Smoking Act]] into law, requiring surgeon general's warnings on tobacco products and banning [[cigarette]] advertisements on [[television]] and [[radio]] in the [[United States]] starting on [[January 1]], [[1971]].
*[[1973]] - [[Project Tiger]], a [[tiger]] conservation project, is launched in the [[Corbett National Park]], [[India]].
*[[1974]] - In the [[United Kingdom]], the [[Metropolitan and non-metropolitan counties]] come into being.
*[[1976]] - [[Apple Inc.|Apple Computer]] is formed by [[Steve Jobs]] and [[Steve Wozniak]].
* 1976 - [[Conrail]] takes over operations from six bankrupt railroads in the [[northeastern U.S.]].
*[[1978]] - Philippine College of Commerce, through a presidential decree, was converted to [[Polytechnic University of the Philippines]].
*[[1979]] - [[Iran]]'s [[government]] becomes an [[Islamic Republic]] by a 98% vote, overthrowing the [[Shah]] officially.
*[[1979]] - [[Nickelodeon (TV Channel)]] starts
*[[1980]] - [[New York City]]'s [[Transport Workers Union of America|Transit Worker Union 100]] goes on [[1980 transit strike|strike]], lasting 11 days.
*[[1981]] - [[Daylight saving time]] is introduced in the [[USSR]].
*[[1989]] - [[Margaret Thatcher]]'s new [[local government]] tax, the [[Community Charge]] (commonly known as the 'poll tax'), was introduced in [[Scotland]].
*[[1996]] - The [[Halifax Regional Municipality]] in [[Nova Scotia]] was created.
*[[1999]] - [[Nunavut]] is established as a [[Canada|Canadian]] territory carved from the eastern part of the [[Northwest Territories]].
*[[2001]] - An [[EP-3E]] [[United States Navy]] plane collides with a [[China|Chinese]] [[People's Liberation Army]] [[fighter jet]]. The [[Navy]] crew makes an emergency landing in [[Hainan]], [[People's Republic of China]] and is detained. See [[Hainan Island incident]].
* 2001 - Former [[president]] of [[Federal Republic of Yugoslavia]] [[Slobodan Milošević]] surrenders to police [[special forces]], to be tried on charges of [[war crime]]s.
* 2001 - [[Same-sex marriage in the Netherlands|Same-sex marriage]] comes into force in the [[Netherlands]], which is the first country to allow it.(''[[Timeline of same-sex marriage]]'')
*[[2002]] - The [[Netherlands]] legalizes [[euthanasia]], becoming the first nation in the world to do so.
*[[2006]] - The [[Serious Organised Crime Agency]], dubbed the 'British FBI', is created in the [[United Kingdom]].

==Births==
*[[1220]] - [[Emperor Go-Saga]] of Japan (d. [[1272]])
*[[1543]] - [[François de Bonne, duc de Lesdiguières]], Constable of France (d. [[1626]])
*[[1578]] - [[William Harvey]], English physician (d. [[1657]])
*[[1610]] - [[Charles de Saint-Évremond]], French soldier (d. [[1703]])
*[[1640]] - [[Georg Mohr]], Danish mathematician (d. [[1697]])
*[[1647]] - [[John Wilmot, 2nd Earl of Rochester]], English poet (d. [[1680]])
*[[1697]] - [[Antoine François Prévost]], French author and novelist (d. [[1763]])
*[[1753]] - [[Joseph de Maistre]], French diplomat and writer (d. [[1821]])
*[[1765]] - [[Luigi Schiavonetti]], Italian engraver (d. [[1810]])
*[[1776]] - [[Sophie Germain]], French mathematician (d. [[1831]])
*[[1815]] - [[Otto von Bismarck]], 1st [[Chancellor of Germany]] (d. [[1898]])
* 1815 - [[Edward Clark]], Governor of Texas (d. [[1880]])
*[[1834]] - [[Big Jim Fisk]], American entrepreneur (d. [[1872]])
*[[1854]] - [[Bill Traylor]], American artist (d. [[1949]])
*[[1856]] - [[Acacio Gabriel Viegas]], Indian physician (d. [[1933]])
*[[1865]] - [[Richard Adolf Zsigmondy]], Austrian-born chemist, [[Nobel Prize in Chemistry|Nobel Prize]] laureate (d. [[1929]])
*[[1866]] - [[Ferruccio Busoni]], Italian pianist and composer (d. [[1924]])
*[[1868]] - [[Edmond Rostand]], French dramatist (d. [[1918]])
*[[1873]] ([[Gregorian calendar|N.S.]]) - [[Sergei Rachmaninoff]], Russian composer, pianist, and conductor (d. [[1943]])
*[[1875]] - [[Edgar Wallace]], English writer (d. [[1932]])
*[[1880]] - [[Agha Petros]], Assyrian general
(d. [[1932]])
*[[1882]] - [[Paul Anspach]], Belgian Olympic champion fencer (d. 1991)
*[[1883]] - [[Lon Chaney, Sr.]], American actor (d. [[1930]])
*[[1885]] - [[Wallace Beery
]], American actor (d. [[1949]])
*[[1893]] - [[Cicely Courtneidge]], English actress and comedian (d. [[1980]])
*[[1895]] - [[Alberta Hunter]], American singer (d. [[1984]])
*[[1897]] - [[Nita Naldi]], American actress (d. [[1961]])
*[[1898]] - [[William James Sidis]], American genius (d. [[1944]])
*[[1899]] - [[Gustavs Celmins]], Latvian politician (d. [[1968]])
*[[1900]] - [[Robert McDowell]], Mayor of Maryborough, Queensland (d. [[1988]])
*[[1901]] - [[Whittaker Chambers]], American writer, editor, and defector (d. [[1961]])
*[[1902]] - [[Maria Polydouri]], Greek poet (d. [[1930]])
*[[1906]] - [[Alexander Sergeyevich Yakovlev|Aleksandr Yakovlev]], Russian engineer and airplane designer (d. [[1989]])
*[[1908]] - [[Abraham Maslow]], American psychologist (d. [[1970]])
*[[1909]] - [[Eddy Duchin]], American popular pianist & bandleader (d. [[1951]])
*[[1914]] - [[Lor Tok]], Thai comedian and actor (d. [[2002]])
*[[1915]] - [[Otto Wilhelm Fischer]], Austrian actor (d. [[2004]])
*[[1919]] - [[Joseph Murray]], American surgeon, [[Nobel Prize in Physiology or Medicine|Nobel laureate]]
*[[1920]] - [[Toshiro Mifune]], Japanese actor (d. [[1997]])
*[[1921]] - [[Ken Reardon]], Canadian ice hockey player
*[[1922]] - [[William Manchester]], American historian (d. [[2004]])
*[[1924]] - [[Brendan Byrne]], Governor of [[New Jersey]]
*[[1924]] - [[Miodrag Petrović]], Serbian actor (d. [[2003]])
*[[1926]] - [[Charles Bressler]], American tenor
* 1926
- [[Anne McCaffrey]], American author
*[[1928]] - [[George Grizzard]], American actor
*[[1929]] - [[Milan Kundera]], Czech-born writer
* 1929 - [[Payut Ngaokrachang]], Thai animator
* 1929
- [[Jane Powell]], American dancer, actress, and singer
* 1929 - [[Bo Schembechler]], American football coach (d. [[2006]])
*[[1930]] - [[Grace Lee Whitney]], American actress
*[[1931]] - [[Rolf Hochhuth]], German writer
* 1931 - [[Ita Ever]], Estonian actress
*[[1932]] - [[Gordon Jump]], American actor (d. [[2003]])
* 1932 - [[Debbie Reynolds]], American actress
*[[1933]] - [[Claude Cohen-Tannoudji]], French physicist, [[Nobel Prize in Physics|Nobel laureate]]
* 1933 - [[Dan Flavin]], American artist (d. [[1996]])
*[[1934]] - [[Don Hastings]], American actor
* 1934
- [[Rod Kanehl]], American baseball player (d. [[2004]])
* 1934 - [[Vladimir Posner]], Russian journalist
*[[1935]] - [[Larry McDonald]], American politician (d. [[1983]])
*[[1936]] - [[Jean-Pascal Delamuraz]], Swiss politician, president of the Confederation in 1989 and 1996 (d. [[1998]])
*[[1938]] - [[Ali MacGraw]], American actress
* 1938 - [[John Quade]], American actor
*[[1939]] - [[Phil Niekro]], American baseball player
* 1939 - [[Rudolph Isley]], American singer ([[The Isley Brothers]])
*[[1940]] - [[Wangari Maathai]], Kenyan environmentalist, recipient of the [[Nobel Peace Prize]]
*[[1942]] - [[Samuel R. Delany]], American author
* 1942 - [[Annie Nightingale]], British disc jockey
*[[1944]] - [[Rusty Staub]], American baseball player
*[[1945]] - [[John Barbata]], American drummer
*[[1946]] - [[Ronnie Lane]], English musician ([[The Small Faces]] and [[The Faces]]) (d. [[1997]])
* 1946 - [[Arrigo Sacchi]], Italian football coach
*[[1947]] - [[Alain Connes]], French mathematician
* 1947 - [[Robin Scott|M]], English singer
* 1947
- [[Norm Van Lier]], American basketball player
*[[1948]] - [[Jimmy Cliff]], Jamaican musician
*[[1949
]] - [[Gérard Mestrallet]], French businessman
* 1949
- [[Sammy Nelson]], Northern Irish footballer
* 1949 - [[Gil Scott-Heron]], American musician and composer
*[[1950]] - [[Samuel Alito]], U.S. Supreme Court Justice
*[[1952]] - [[Annette O'Toole]], American actress
* 1952 - [[Bernard Stiegler]], French philosopher
*[[1953]] - [[Barry Sonnenfeld]], producer and director
*[[1954]] - [[Jeff Porcaro]], American drummer ([[Toto (band)|Toto]]) (d. [[1992]])
*[[1955]] - [[Gregg Jarrett]], American television anchor
* 1955
- [[Humayun Akhtar Khan]], Pakistani statesman
*[[1957]] - [[David Gower]], English cricketer
*[[1958]] - [[D. Boon]], American musician ([[Minutemen]]) (d. [[1985]])
*[[1960]] - [[Michael Praed]], British actor
*[[1962]] - [[Dave Ulliott]], English poker player
*[[1964]] - [[Erik Breukink]], Dutch cyclist and manager
* 1964 - [[Scott Stevens]], Canadian ice hockey player
*[[1965]] - [[Mark Jackson (basketball)|Mark Jackson]], American basketball player
* 1965 - [[Robert Steadman]], English composer
*[[1966]] - [[Chris Evans (presenter)|Chris Evans]], English disc jockey
*[[1967]] - [[Phil Demmel]], American musician ([[Vio-lence]] and [[Machine Head (band)|Machine Head]])
*[[1970]] - [[Sung Hi Lee]], Korean-born model
*[[1971]] - [[Method Man]], American rapper
* 1971 - [[Shinji Nakano]], Japanese race car driver
*[[1972]] - [[Hughes Brothers|Allen and Albert Hughes]], American film directors
* 1972 - [[Darren McCarty]], Canadian ice hockey player
* 1972 - [[Jesse Tobias]], American musician
*[[1973]] - [[Christian Finnegan]], American comedian
* 1973 - [[Stephen Fleming]], New Zealand cricketer
* 1973 - [[Joe Francis]], American adult video producer
*[[1974]] - [[Richard Christy]], American drummer
* 1974 - [[Hugo Benjamín Ibarra]], Argentine footballer
* 1974
- [[Sandra Völker]], German swimmer
*[[1975]] - [[George Bastl]], Swiss tennis player
* 1975 - [[John Butler (musician)|John Butler]], Australian singer and musician
*[[1977]] - [[Haimar Zubeldia]], Spanish cyclist
*[[1978]] - [[Jean-Pierre Dumont]], Canadian ice hockey player
* 1978 - [[Miroslava Vavrinec]], Swiss tennis player
*[[1979]] - [[Ivano Balić]], Croatian handballer
*[[1980]] - [[Randy Orton]], American professional wrestler
* 1980
- [[Bijou Phillips]], American actress
* 1980 - [[Yūko Takeuchi]], Japanese actress
*[[1981]] - [[Antonis Fotsis]], Greek basketball player
* 1981 - [[Hannah Spearritt]], British singer ([[S Club 7]])
* 1981 - [[Pieter Weening]], Dutch cyclist
*[[1982]] - [[Sam Huntington]], American actor
* 1982 - [[Gemma Hunt]], British children's television presenter
* 1982 - [[Taran Killam]], American comedian and actor
*[[1983]] - [[Ólafur Ingi Skúlason]], Icelandic footballer
* 1983 - [[Sean Taylor (American football)|Sean Taylor]], American football player (d. [[2007]])
*[[1985]] - [[Shay Doron]], Israeli basketball player
*[[1984]] - [[Gilberto Macena]], Brazilian footballer
* 1984
- [[Olga Rei]], Russian television personality
*[[1986]] - [[Ireen Wüst]], Dutch speed skater
*[[1987]] - [[Ding Junhui]], [[People's Republic of China|Chinese]] [[snooker]] player
* 1987 - [[Li Ting (diver)|Li Ting]], Chinese diver
*[[1988]] - [[Courtney McCool]], American gymnast
<!--
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==Deaths==
*[[1085]] - [[Emperor Shenzong]] of China (b. [[1048]])
*[[1132]] - [[St-Hugues]], Bishop of Grenoble (b. [[1053]])
*[[1204]] - [[Eleanor of Aquitaine]], mother of [[Richard I of England]] and [[John of England]]
*[[1205]] - King [[Amalric II of Jerusalem]] (b. [[1145]])
*[[1528]] - [[Francisco de Peñalosa]], Spanish composer
*[[1580]] - [[Alonso Mudarra]], Spanish composer
*[[1621]] - [[Cristofano Allori]], Italian painter (b. [[1577]])
*[[1637]] - [[Niwa Nagashige]], Japanese warlord (b. [[1571]])
*[[1682]] - [[Franz Egon of Fürstenberg]], Bishop of Strassburg (b. [[1625]])
*[[1787]] - [[Floyer Sydenham]], English classical scholar (b. [[1710]])
*[[1791]] - [[Richard Butler (general)|Richard Butler]] American soldier (b. [[1743]])
*[[1839]] - [[Benjamin Pierce (governor)|Benjamin Pierce]], Governor of New Hampshire (b. [[1757]])
* [[1865]] - [[Giuditta Pasta]], Italian soprano (b. [[1797]])
*[[1872]] - [[Frederick Maurice]], English theologian (b. [[1805]])
* 1872 - [[William Frederick Horry]], executed by [[William Marwood]] (b. [[1843]])
*[[1878]] - [[John Corry Wilson Daly]], Canadian politician (b. [[1796]])
*[[1890]] - [[David Wilber]], American politician (b. [[1820]])
*[[1914]] - [[Rube Waddell]], American baseball player (b. [[1876]])
*[[1917]] - [[Scott Joplin]], American musician and composer (b. [[1868]])
*[[1922]] - Emperor [[Karl I of Austria]] (b. [[1887]])
*[[1930]] - [[Cosima Wagner]], daughter of Franz Liszt and wife of Richard Wagner (b. [[1837]])
*[[1946]] - [[Noah Beery]], American actor (b. [[1882]])
*[[1947]] - King [[George II of Greece]] (b. [[1890]])
*[[1950]] - [[Charles R. Drew]], American physician (b. [[1904]])
*[[1965]] - [[Helena Rubinstein]], cosmetic manufacturer (b. [[1870]])
*[[1966]] - [[Flann O'Brien]], Irish humorist (b. [[1911]])
*[[1968]] - [[Lev Davidovich Landau]], Russian physicist, [[Nobel Prize]] laureate (b. [[1908]])
*[[1976]] - [[Max Ernst]], German artist (b. [[1891]])
*[[1979]] - [[Bruno Coquatrix]], French music impresario (b. [[1910]])
* 1979 - [[Barbara Luddy]], American actress (b. [[1908]])
*[[1981]] - [[Eua Sunthornsanan]], Thai composer and bandleader (b. [[1910]])
*[[1984]] - [[Marvin Gaye]], American singer (b. [[1939]])
*[[1986]] - [[Erik Bruhn]], Danish ballet dancer, choreographer (b. [[1928]])
*[[1988]] - [[Jim Jordan]], American actor (Fibber McGee) (b. [[1896]])
*[[1991]] - [[Martha Graham]], American dancer and choreographer (b. [[1894]])
*[[1993]] - [[Alan Kulwicki]], American race car driver (b. [[1954]])
*[[1994]] - [[Robert Doisneau]], French photographer (b. [[1912]])
*[[1996]] - [[Florence Buchsbaum]], theater director and musician (b. [[1926]])
* 1996 - [[John McSherry]], American baseball umpire (b. [[1944]])
*[[1997]] - [[Norman Carr]], British conservationist (b. [[1912]])
*[[1998]] - [[Gene Evans]], American actor (b. [[1922]])
* 1998
- [[Rozz Williams]], American musician ([[Christian Death]]) (b. [[1963]])
*[[1999]] - [[Jesse Stone]], American record producer (b. [[1901]])
*[[2000]] - [[Alexander Mackenzie Stuart, Baron Mackenzie-Stuart]], president of the European Court of Justice (b. [[1924]])
*[[2001]] - [[Olivia Barclay]], British astrologer (b. [[1919]])
* 2001
- [[Jo-Jo Moore]], American baseball player (b. [[1908]])
* 2001
- [[Trinh Cong Son]], Vietnamese composer (b. [[1939]])
*[[2002]] - [[Simo Hayha]], Finnish marksman (b. [[1905]])
*[[2003]] - [[Leslie Cheung]], Hong Kong actor and singer (b. [[1956]])
*[[2004]] - [[Carrie Snodgress]], American actress (b. [[1946]])
*[[2005]] - [[Alexander Brott]], Canadian violinist, conductor and composer (b. [[1915]])
* 2005
- [[Harald Juhnke]], German entertainer (b. [[1929]])
* 2005 - [[Jack Keller (songwriter)|Jack Keller]], American songwriter (b. [[1936]])
* 2005 - [[Ioannis Kyrastas]], Greek footballer and manager (b. [[1952]])
* 2005 - [[Robert Coldwell Wood]], American university president and political appointee (b. [[1923]])
*[[2006]] - [[In Tam]], Cambodian politician (b. [[1916]])
*[[2007]] - [[Herb Carneal]], [[Major League Baseball]] [[radio]] broadcaster (b. [[1923]])

==Holidays and observances==
* [[April 1]] is known as [[April Fools' Day|April Fool's Day or All Fools' Day]] in many countries.
* Last day of the [[Assyrian New Year]] Celebration.
* [[Roman Empire]] - [[Veneralia]] celebrated to honor [[Venus (mythology)|Venus]].
* [[Japan]] - The official start of school years in most universities and schools. Also, the official first day of work at companies and offices for new university graduates hires, marked by welcoming ceremonies and speeches.
* [[Canada]] - Beginning of government's [[fiscal year]].
* [[India]] - Start of [[financial year]].
* [[Orissa]] - a state in eastern [[India]] celebrates "Utkal Divas", its statehood day.
* [[Brielle]] celebrates the victory of [[1572]] over the [[Spaniards]].
* In [[San Marino]], two [[Captains Regent]], elected by [[Parliament]], take office for six months.
* Former [[New Year]] celebration day.
* In [[England and Wales]], local government reorganisations traditionally happen on April 1.
* Some universities in [[Russia]] (e.g. Omsk State University) celebrate mathematician day on April 1.
* [[Užupis]] - Residents celebrate their independance on Užupis Day.

===Liturgical Feast days===
In the [[Roman Catholic Church]] calendar:
*[[Saint Hugh of Grenoble
]]
*[[Walric, abbot of Leuconay|Saint Waleric]]

==External links==
* [http://news.bbc.co.uk/onthisday/hi/dates/stories/april/1 BBC: On This Day
]
* {{NYT On this day|month=04|day=01}}
* [http://www1.sympatico.ca/cgi-bin/on_this_day?mth=Apr&day=01 On This Day in Canada]
----
{{months}}

[[Category:April|April 01]]

[[af:1 April]]
[[ar:1 أبريل]]
[[an:1 d'abril]]
[[frp:1ér avril]]
[[ast:1 d'abril]]
[[bn:এপ্রিল ১]]
[[be:1 красавіка]]
[[be-x-old:1 красавіка]]
[[bs:1. april]]
[[br:1añ Ebrel]]
[[bg:1 април]]
[[ca:1 d'abril]]
[[cv:Ака, 1]]
[[ceb:Abril 1]]
[[cs:1. duben]]
[[co:1 d'aprile]]
[[cy:1 Ebrill]]
[[da:1. april]]
[[de:1. April]]
[[et:1. aprill]]
[[el:1 Απριλίου]]
[[es:1 de abril]]
[[eo:1-a de aprilo]]
[[eu:Apirilaren 1]]
[[fa:۱ آوریل]]
[[fo:1. apríl]]
[[fr:1er avril]]
[[fy:1 april]]
[[fur:1 di Avrîl]]
[[ga:1 Aibreán]]
[[gd:1 an Giblean]]
[[gl:1 de abril]]
[[ko:41일]]
[[hy:Ապրիլի 1]]
[[hi:1 अप्रैल]]
[[hr:1. travnja]]
[[io:1 di aprilo]]
[[ig:April 1]]
[[ilo:Abril 1]]
[[bpy:এপ্রিল ১]]
[[id:1 April]]
[[ia:1 de april]]
[[ie:1 april]]
[[is:1. apríl]]
[[it:1 aprile]]
[[he:1 באפריל]]
[[jv:1 April]]
[[pam:Abril 1]]
[[ka:1 აპრილი]]
[[csb:1 łżëkwiôta]]
[[kk:Сәуірдің 1]]
[[sw:1 Aprili]]
[[ht:1e avril]]
[[ku:1'ê avrêlê]]
[[la:1 Aprilis]]
[[lb:1. Abrëll]]
[[lt:Balandžio 1]]
[[li:1 april]]
[[lmo:01 04]]
[[hu:Április 1]]
[[mk:1 април]]
[[ml:ഏപ്രില്‍ 1]]
[[mr:एप्रिल १]]
[[ms:1 April]]
[[nah:Tlanāuhti 1]]
[[nl:1 april]]
[[nds-nl:1 april]]
[[new:अप्रिल १]]
[[ja:4月1日]]
[[nap:1 'e abbrile]]
[[no:1. april]]
[[nn:1. april]]
[[nrm:1 Avri]]
[[nov:1 de aprile]]
[[oc:1èr d'abril]]
[[uz:1 aprel]]
[[nds:1. April]]
[[pl:1 kwietnia]]
[[pt:1 de Abril]]
[[ksh:1. Apprill]]
[[ro:1 aprilie]]
[[ru:1 апреля]]
[[se:Cuoŋománu 1.]]
[[sco:1 Aprile]]
[[sq:1 Prill]]
[[scn:1 di aprili
]]
[[simple:April 1]]
[[sk:1. apríl]]
[[sl:1. april]]
[[sr:1. април]]
[[sh:1.4.]]
[[su:1 April]]
[[fi:1. huhtikuuta]]
[[sv:1 april]]
[[tl:Abril 1]]
[[ta:ஏப்ரல் 1]]
[[tt:1. Äpril]]
[[te:ఏప్రిల్ 1]]
[[th
:1 เมษายน]]
[[vi:1 tháng 4]]
[[tg:1 апрел]]
[[tr:1 Nisan]]
[[uk:1 квітня]]
[[ur:1
اپریل]]
[[vec:1 de apriłe]]
[[fiu-vro:1. mahlakuu päiv]]
[[wa:1î d' avri]]
[[vls:1 april]]
[[war:Abril 1]]
[[zh-yue:4月1號]]
[[bat-smg:Balondė 1]]
[[zh:41日]]