A day on the globeROENES中文
The Earth on 3 April, with the rays of the day’s events
  1. A birthday on the globe

    3 April on the globe: what happened in the world on this day, and who was born

    For 3 April, the English Wikipedia lists 53 events and 260 births. 26 of the events stand at their places as rays of light; three more are dashed circles, where the sentence links only to a country or a sea. The taller the ray, the longer ago it happened. The people born that day come further down, as blue points.

    A birthday, yours or someone else’s:

  2. The Earth on 3 April

    The picture on the globe was assembled by NASA from satellite photographs taken in April 2004: the snow, the ice and the green are those of the month.

    On 3 April the Sun passes straight overhead at noon along the parallel of 5.5° north. In London, the day lasts about 13 hours 5 minutes.

    Beyond 85° north the Sun no longer sets; beyond 85° south it no longer rises.

    The line between day and night is tilted on the globe exactly as on this day of the year. On the dark side you can see the lights of towns.

  3. 3 April

    Britain and Ireland#

    Two events from the day’s list are placed here, between 1888 and 1993.

    The globe stops at one of them; the whole list is further down. Both

  4. Britain & Ireland · Grand National

    1993

    The outcome of the Grand National horse race is declared void for the first (and only) time.

    On the map: Grand National.

    Wikipedia: Grand National

  5. 3 April

    Asia#

    Six events from the day’s list are placed here, between 1589 and 1975.

    The globe stops at one of them; the whole list is further down. All six

  6. Asia · Mount Everest

    1933

    First flight over Mount Everest, the British Houston-Mount Everest Flight Expedition, led by the Marquis of Clydesdale and funded by Lucy, Lady Houston.

    On the map: Mount Everest.

    Also on the day’s list of Wikipedia in Spanish, Romanian and Chinese.

    Wikipedia: Mount Everest

  7. 3 April

    Latin America and the Caribbean#

    Four events from the day’s list are placed here, between 686 and 2013.

    The globe stops at two of them; the whole list is further down. All four

  8. Latin America · Calakmul

    686

    Maya king Yuknoom Yich'aak K'ahk' assumes the crown of Calakmul.

    On the map: Calakmul.

    Wikipedia: Maya civilization

  9. Latin America · Buenos Aires

    1905

    Association football club Boca Juniors is founded in Buenos Aires, Argentina

    On the map: Buenos Aires.

    Wikipedia: Boca Juniors

  10. 3 April

    North America#

    11 events from the day’s list are placed here, between 1860 and 2018.

    The globe stops at three of them; the whole list is further down. All 11

  11. North America · St. Joseph, Missouri

    1860

    The first successful United States Pony Express run from St. Joseph, Missouri, to Sacramento, California, begins.

    On the map: St. Joseph, Missouri.

    Wikipedia: Pony Express

  12. North America · United States Congress

    1980

    US Congress restores a federal trust relationship with the 501 members of the Shivwits, Kanosh, Koosharem, and the Indian Peaks and Cedar City bands of the Paiute people of Utah.

    On the map: United States Congress.

    Wikipedia: United States Congress

  13. North America · YFZ Ranch

    2008

    Texas law enforcement cordons off the FLDS's YFZ Ranch. Eventually 533 women and children will be taken into state custody.

    On the map: YFZ Ranch.

    Wikipedia: Texas

  14. 3 April

    What the other Wikipedias remember#

    For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Spanish and were translated for this page.

  15. From Wikipedia in Spanish · Barcelona

    1493

    In Barcelona, the Catholic Monarchs receive Christopher Columbus with full honours.

    On the map: Barcelona.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Barcelona

  16. From Wikipedia in Spanish · The Pharaohs' Golden Parade

    2021

    In Cairo, the Pharaohs' Golden Parade takes place, in which twenty-two mummies, including eighteen kings and four queens, are moved from the Egyptian Museum in Cairo to the National Museum of Egyptian Civilization.

    On the map: The Pharaohs' Golden Parade.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Desfile dorado de los faraones

  17. 3 April

    Born on 3 April#

    The English Wikipedia lists 260 births for this day. The blue points are the birthplaces of 60 of these people: those written about in the most Wikipedia editions, where Wikidata gives a place of birth.

  18. Born on 3 April

    1924

    Marlon Brando, American actor and director (died 2004)

    Place of birth: Omaha.

    Wikipedia: Marlon Brando

  19. Born on 3 April

    1934

    Jane Goodall, English primatologist and anthropologist (died 2025)

    Place of birth: Hampstead.

    Wikipedia: Jane Goodall

  20. Born on 3 April

    1783

    Washington Irving, American short story writer, essayist, biographer, historian (died 1859)

    Place of birth: New York City.

    Wikipedia: Washington Irving

  21. Born on 3 April

    1961

    Eddie Murphy, American actor and comedian

    Place of birth: Brooklyn.

    Wikipedia: Eddie Murphy

  22. Born on 3 April

    1922

    Doris Day, American singer and actress (died 2019)

    Place of birth: Cincinnati.

    Wikipedia: Doris Day

  23. Born in Britain and Ireland

    1593

    George Herbert, English poet (died 1633)

    Place of birth: Montgomery.

    Wikipedia: George Herbert

  24. Born in Britain and Ireland

    1985

    Leona Lewis, English singer-songwriter and producer

    Place of birth: Islington.

    Wikipedia: Leona Lewis

  25. Born in Britain and Ireland

    1983

    Ben Foster, English footballer

    Place of birth: Leamington Spa.

    Wikipedia: Ben Foster

  26. The whole globe of the day

    Drag the globe to turn it. Touch a ray or a point to read what happened there.

Everything Wikipedia lists for 3 April

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 24 events have no place on the map: the sentence links to no place with coordinates, only to places too wide to mark, or to several countries.

  1. 686

    Maya king Yuknoom Yich'aak K'ahk' assumes the crown of Calakmul.

    Latin America · CalakmulWikipedia: Maya civilization
  2. 956

    Polyeuctus of Constantinople is elected as patriarch of Constantinople.

  3. 1043

    Edward the Confessor is crowned King of England.

  4. 1077

    The Patriarchate of Friûl, the first Friulian state, is created.

    no place on the mapWikipedia: Friuli
  5. 1559

    The second of two treaties making up the Peace of Cateau-Cambrésis is signed, ending the Italian Wars.

    Europe · Le Cateau-CambrésisWikipedia: Treaty of Cateau-Cambrésis
  6. 1589

    The janissaries revolt in response to the debasement of coins.

    Asia · ConstantinopleWikipedia: Beylerbeyi event
  7. 1721

    Robert Walpole becomes, in effect, the first Prime Minister of Great Britain, though he himself denied that title.

    no place on the mapWikipedia: Robert Walpole
  8. 1851

    Rama IV is crowned King of Thailand after the death of his half-brother, Rama III.

    Asia · ThailandWikipedia: Mongkut
  9. 1860

    The first successful United States Pony Express run from St. Joseph, Missouri, to Sacramento, California, begins.

    North America · St. Joseph, MissouriWikipedia: Pony Express
  10. 1865

    American Civil War: Union forces capture Richmond, Virginia, the capital of the Confederate States of America.

    North America · Richmond, VirginiaWikipedia: American Civil War
  11. 1882

    American Old West: Robert Ford kills Jesse James.

    no place on the mapWikipedia: American frontier
  12. 1885

    Gottlieb Daimler is granted a German patent for a light, high-speed, four-stroke engine, which he uses seven months later to create the world's first motorcycle, the Daimler Reitwagen.

    no place on the mapWikipedia: Gottlieb Daimler
  13. 1888

    Jack the Ripper: The first of 11 unsolved brutal murders of women committed in or near the impoverished Whitechapel district in the East End of London, occurs.

    Britain & Ireland · WhitechapelWikipedia: Whitechapel murders
  14. 1895

    The trial in the libel case brought by Oscar Wilde begins, eventually resulting in his imprisonment on charges of homosexuality.

    no place on the mapWikipedia: Defamation
  15. 1905

    Association football club Boca Juniors is founded in Buenos Aires, Argentina

    Latin America · Buenos AiresWikipedia: Boca Juniors
  16. 1920

    Attempts are made to carry out the failed assassination attempt on General Mannerheim, led by Aleksander Weckman by order of Eino Rahja, during the White Guard parade in Tampere, Finland.

    Europe · TampereWikipedia: Carl Gustaf Emil Mannerheim
  17. 1922

    Joseph Stalin becomes the first General Secretary of the Communist Party of the Soviet Union.

    no place on the mapWikipedia: Joseph Stalin
  18. 1933

    First flight over Mount Everest, the British Houston-Mount Everest Flight Expedition, led by the Marquis of Clydesdale and funded by Lucy, Lady Houston.

    Asia · Mount EverestWikipedia: Mount Everest
  19. 1936

    Bruno Richard Hauptmann is executed for the kidnapping and death of Charles Augustus Lindbergh Jr., the infant son of pilot Charles Lindbergh.

    North America · Lindbergh kidnappingWikipedia: Lindbergh kidnapping
  20. 1942

    World War II: Japanese forces begin an assault on the United States and Filipino troops on the Bataan Peninsula.

    Asia · Battle of BataanWikipedia: World War II
  21. 1944

    Philippine resistance against Japan: Cebuano fishermen discovered the Koga papers after a plane crash killed Admiral Mineichi Koga, commander-in-chief of the Imperial Japanese Navy's Combined Fleet.

  22. 1946

    Japanese Lt. General Masaharu Homma is executed in the Philippines for leading the Bataan Death March.

  23. 1948

    Cold War: U.S. President Harry S. Truman signs the Marshall Plan, authorizing $5 billion in aid for 16 countries.

    no place on the mapWikipedia: Cold War
  24. 1948

    In Jeju Province, South Korea, a civil-war-like period of violence and human rights abuses known as the Jeju uprising begins.

    Asia · Jeju uprisingWikipedia: Jeju uprising
  25. 1955

    The American Civil Liberties Union announces it will defend Allen Ginsberg's book Howl against obscenity charges.

  26. 1956

    Hudsonville–Standale tornado: The western half of the Lower Peninsula of Michigan is struck by a deadly F5 tornado.

  27. 1961

    LAN-Chile Flight 621 crashes in the Andes mountains, killing 21 people, including Argentinian football player Eliseo Mouriño.

    Latin America · LAN-Chile Flight 621Wikipedia: LAN-Chile Flight 621
  28. 1966

    Luna 10 entered orbit around the Moon, becoming the first space probe to orbit an astronomical body other than Earth or the Sun.

    no place on the mapWikipedia: Luna 10
  29. 1968

    Martin Luther King Jr. delivers his "I've Been to the Mountaintop" speech; he was assassinated the next day.

    North America · MemphisWikipedia: I've Been to the Mountaintop
  30. 1969

    Vietnam War: United States Secretary of Defense Melvin Laird announces that the United States will start to "Vietnamize" the war effort.

    no place on the mapWikipedia: Vietnam War
  31. 1973

    Martin Cooper of Motorola makes the first handheld mobile phone call to Joel S. Engel of Bell Labs.

    no place on the mapWikipedia: Martin Cooper
  32. 1974

    The 1974 Super Outbreak occurs, the second largest tornado outbreak in recorded history (after the 2011 Super Outbreak). The death toll is 315, with nearly 5,500 injured.

  33. 1975

    Bobby Fischer refuses to play in a chess match against Anatoly Karpov, giving Karpov the title of World Champion by default.

  34. 1975

    Vietnam War: Operation Babylift, a mass evacuation of children in the closing stages of the war begins.

    Asia · Operation BabyliftWikipedia: Operation Babylift
  35. 1980

    US Congress restores a federal trust relationship with the 501 members of the Shivwits, Kanosh, Koosharem, and the Indian Peaks and Cedar City bands of the Paiute people of Utah.

    North America · United States CongressWikipedia: United States Congress
  36. 1981

    The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.

    North America · San FranciscoWikipedia: Osborne 1
  37. 1984

    Aboard Soyuz T-11, Rakesh Sharma became the first Indian to be launched into space.

    no place on the mapWikipedia: Soyuz T-11
  38. 1989

    The US Supreme Court upholds the jurisdictional rights of tribal courts under the Indian Child Welfare Act of 1978 in Mississippi Choctaw Band v. Holyfield.

    North America · Supreme Court of the United StatesWikipedia: Supreme Court of the United States
  39. 1993

    The outcome of the Grand National horse race is declared void for the first (and only) time.

    Britain & Ireland · Grand NationalWikipedia: Grand National
  40. 1996

    A United States Air Force Boeing T-43 crashes near Dubrovnik Airport in Croatia, killing 35, including Secretary of Commerce Ron Brown.

    Europe · 1996 United States Air Force Boeing T-43 crashWikipedia: 1996 United States Air Force Boeing T-43 crash
  41. 1996

    Suspected "Unabomber" Theodore Kaczynski is captured at his Montana cabin in the United States.

    North America · MontanaWikipedia: Ted Kaczynski
  42. 1997

    The Thalit massacre begins in Algeria; all but one of the 53 inhabitants of Thalit are killed by guerrillas.

    Africa · AlgeriaWikipedia: Thalit massacre
  43. 2000

    United States v. Microsoft Corp.: Microsoft is ruled to have violated United States antitrust law by keeping "an oppressive thumb" on its competitors.

    no place on the mapWikipedia: Microsoft
  44. 2004

    Islamic terrorists involved in the 2004 Madrid train bombings are trapped by the police in their apartment and kill themselves.

    Europe · 2004 Madrid train bombingsWikipedia: 2004 Madrid train bombings
  45. 2007

    Conventional-Train World Speed Record: A French TGV train on the LGV Est high speed line sets an official new world speed record of 574.8 km/h (159.6 m/s, 357.2 mph).

  46. 2008

    ATA Airlines, once one of the ten largest U.S. passenger airlines and largest charter airline, files for bankruptcy for the second time in five years and ceases all operations.

    no place on the mapWikipedia: ATA Airlines
  47. 2008

    Texas law enforcement cordons off the FLDS's YFZ Ranch. Eventually 533 women and children will be taken into state custody.

    North America · YFZ RanchWikipedia: Texas
  48. 2009

    Jiverly Antares Wong opens fire at the American Civic Association immigration center in Binghamton, New York, killing thirteen and wounding four before committing suicide.

    North America · 2009 Binghamton shootingWikipedia: 2009 Binghamton shooting
  49. 2010

    Apple Inc. released the first generation iPad, a tablet computer.

    no place on the mapWikipedia: Apple Inc.
  50. 2013

    More than 50 people die in floods resulting from record-breaking rainfall in La Plata and Buenos Aires, Argentina.

    Latin America · La PlataWikipedia: 2013 Argentina floods
  51. 2016

    The Panama Papers, a leak of legal documents, reveals information on 214,488 offshore companies.

  52. 2017

    A bomb explodes in the St Petersburg metro system, killing 14 and injuring several more people.

    Europe · 2017 Saint Petersburg Metro bombingWikipedia: 2017 Saint Petersburg Metro bombing
  53. 2018

    YouTube headquarters shooting: A 38-year-old gunwoman opens fire at YouTube Headquarters in San Bruno, California, injuring three people before committing suicide.

    North America · 2018 YouTube headquarters shootingWikipedia: 2018 YouTube headquarters shooting

What the other Wikipedias remember

For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Spanish and were translated for this page.

  1. 1493

    In Barcelona, the Catholic Monarchs receive Christopher Columbus with full honours.

    Europe · BarcelonaTranslated from the list on Wikipedia in SpanishWikipedia: Barcelona
  2. 2021

    In Cairo, the Pharaohs' Golden Parade takes place, in which twenty-two mummies, including eighteen kings and four queens, are moved from the Egyptian Museum in Cairo to the National Museum of Egyptian Civilization.

    Africa · The Pharaohs' Golden ParadeTranslated from the list on Wikipedia in SpanishWikipedia: Desfile dorado de los faraones

Who was born on 3 April

In order of how many Wikipedia editions have an article about each. The first 60 of 260 are shown.

  1. 1924

    Marlon Brando, American actor and director (died 2004)

    OmahaWikipedia: Marlon Brando
  2. 1930

    Helmut Kohl, German politician, Chancellor of Germany (died 2017)

    FriesenheimWikipedia: Helmut Kohl
  3. 1934

    Jane Goodall, English primatologist and anthropologist (died 2025)

    HampsteadWikipedia: Jane Goodall
  4. 1783

    Washington Irving, American short story writer, essayist, biographer, historian (died 1859)

    New York CityWikipedia: Washington Irving
  5. 1961

    Eddie Murphy, American actor and comedian

    BrooklynWikipedia: Eddie Murphy
  6. 1922

    Doris Day, American singer and actress (died 2019)

    CincinnatiWikipedia: Doris Day
  7. 1958

    Alec Baldwin, American actor, comedian, producer and television host

    AmityvilleWikipedia: Alec Baldwin
  8. 1964

    Nigel Farage, English politician

    FarnboroughWikipedia: Nigel Farage
  9. 1881

    Alcide De Gasperi, Italian journalist and politician, 30th Prime Minister of Italy (died 1954)

    Pieve TesinoWikipedia: Alcide De Gasperi
  10. 1982

    Cobie Smulders, Canadian actress

    VancouverWikipedia: Cobie Smulders
  11. 1593

    George Herbert, English poet (died 1633)

    MontgomeryWikipedia: George Herbert
  12. 1997

    Gabriel Jesus, Brazilian footballer

    São PauloWikipedia: Gabriel Jesus
  13. 1880

    Otto Weininger, Jewish-Austrian philosopher and author (died 1903)

    ViennaWikipedia: Otto Weininger
  14. 1986

    Amanda Bynes, American actress

    Thousand OaksWikipedia: Amanda Bynes
  15. 1985

    Leona Lewis, English singer-songwriter and producer

    IslingtonWikipedia: Leona Lewis
  16. 1926

    Gus Grissom, American colonel, pilot, and astronaut (died 1967)

    MitchellWikipedia: Gus Grissom
  17. 1983

    Ben Foster, English footballer

    Leamington SpaWikipedia: Ben Foster
  18. 1948

    Carlos Salinas de Gortari, Mexican economist and politician, 53rd President of Mexico

    Mexico CityWikipedia: Carlos Salinas de Gortari
  19. 1948

    Jaap de Hoop Scheffer, Dutch academic, politician, and diplomat, 11th Secretary General of NATO

    AmsterdamWikipedia: Jaap de Hoop Scheffer
  20. 1988

    Tim Krul, Dutch footballer

    The HagueWikipedia: Tim Krul
  21. 1925

    Tony Benn, English pilot and politician, Secretary of State for Industry (died 2014)

    MaryleboneWikipedia: Tony Benn
  22. 1893

    Leslie Howard, English actor (died 1943)

    LondonWikipedia: Leslie Howard
  23. 1990

    Karim Ansarifard, Iranian footballer

    ArdabilWikipedia: Karim Ansarifard
  24. 1946

    Hanna Suchocka, Polish politician, Prime Minister of Poland

    PleszewWikipedia: Hanna Suchocka
  25. 1915

    Piet de Jong, Dutch politician and naval officer, Prime Minister of the Netherlands (died 2016)

    ApeldoornWikipedia: Piet de Jong
  26. 1942

    Marsha Mason, American actress

    St. LouisWikipedia: Marsha Mason
  27. 1946

    Marisa Paredes, Spanish film actress (died 2024)

    MadridWikipedia: Marisa Paredes
  28. 1978

    Tommy Haas, German-American tennis player

    HamburgWikipedia: Tommy Haas
  29. 1948

    Hans-Georg Schwarzenbeck, German footballer

  30. 1978

    Matthew Goode, English actor

    ExeterWikipedia: Matthew Goode
  31. 1770

    Theodoros Kolokotronis, Greek general (died 1843)

    RamovouniWikipedia: Theodoros Kolokotronis
  32. 1929

    Poul Schlüter, Danish lawyer and politician, 37th Prime Minister of Denmark (died 2021)

    TønderWikipedia: Poul Schlüter
  33. 1973

    Adam Scott, American actor

    Santa CruzWikipedia: Adam Scott
  34. 1984

    Maxi López, Argentinian footballer

    Buenos AiresWikipedia: Maxi López
  35. 1969

    Ben Mendelsohn, Australian actor

    MelbourneWikipedia: Ben Mendelsohn
  36. 1972

    Jennie Garth, American actress and director

    UrbanaWikipedia: Jennie Garth
  37. 1991

    Hayley Kiyoko, American actress and singer

    Los AngelesWikipedia: Hayley Kiyoko
  38. 1911

    Stanisława Walasiewicz, Polish-American runner (died 1980)

    Wierzchownia, Kuyavian-Pomeranian VoivodeshipWikipedia: Stanisława Walasiewicz
  39. 1798

    Charles Wilkes, American admiral, geographer, and explorer (died 1877)

    New York CityWikipedia: Charles Wilkes
  40. 1921

    Jan Sterling, American actress (died 2004)

    New York CityWikipedia: Jan Sterling
  41. 1990

    Sotiris Ninis, Greek footballer

    HimarëWikipedia: Sotiris Ninis
  42. 1781

    Swaminarayan, Indian religious leader (died 1830)

    ChhapaiyaWikipedia: Swaminarayan
  43. 1956

    Miguel Bosé, Spanish musician and actor

    Panama CityWikipedia: Miguel Bosé
  44. 1992

    Yuliya Yefimova, Russian swimmer

    GroznyWikipedia: Yuliya Yefimova
  45. 1945

    Catherine Spaak, French actress (died 2022)

    Boulogne-BillancourtWikipedia: Catherine Spaak
  46. 1962

    Jaya Prada, Indian actress and politician

    RajahmundryWikipedia: Jaya Prada
  47. 1998

    Paris Jackson, American actress, model and singer

    Beverly HillsWikipedia: Paris Jackson
  48. 1643

    Charles V, duke of Lorraine (died 1690)

    ViennaWikipedia: Charles V of Lorraine
  49. 1959

    David Hyde Pierce, American actor and activist

    Saratoga SpringsWikipedia: David Hyde Pierce
  50. 1964

    Bjarne Riis, Danish cyclist and manager

    HerningWikipedia: Bjarne Riis
  51. 1968

    Sebastian Bach, Bahamian-Canadian singer-songwriter and actor

    FreeportWikipedia: Sebastian Bach
  52. 1791

    Anne Lister, English diarist, mountaineer, and traveller (died 1840)

    HalifaxWikipedia: Anne Lister
  53. 1875

    Mistinguett, French actress and singer (died 1956)

    Enghien-les-BainsWikipedia: Mistinguett
  54. 1900

    Camille Chamoun, Lebanese lawyer and politician, 7th President of Lebanon (died 1987)

    Deyr el-QamarWikipedia: Camille Chamoun
  55. 1913

    Per Borten, Norwegian politician, 18th Prime Minister of Norway (died 2005)

    Flå MunicipalityWikipedia: Per Borten
  56. 1972

    Catherine McCormack, English actress

    EpsomWikipedia: Catherine McCormack
  57. 1924

    Roza Shanina, Russian sergeant and sniper (died 1945)

    EdmaWikipedia: Roza Shanina
  58. 1971

    Vitālijs Astafjevs, Latvian footballer and manager

    RigaWikipedia: Vitālijs Astafjevs
  59. 1715

    William Watson, English physician, physicist, and botanist (died 1787)

    LondonWikipedia: William Watson
  60. 1993

    Pape Moussa Konaté, Senegalese footballer

    M'BourWikipedia: Moussa Konaté

What is celebrated on 3 April

  • Christian feast day: Agape, Chionia, and Irene
  • Christian feast day: Burgundofara
  • Christian feast day: Joseph the Hymnographer
  • Christian feast day: Luigi Scrosoppi
  • Christian feast day: Piotr Edward Dankowski
  • Christian feast day: Richard of Chichester
  • Christian feast day: April 3 (Eastern Orthodox liturgics)

A greeting link for someone

Type a name and, if you like, the year of birth. The link opens with a greeting, and beside each event it says how old the person turned that day, or how many years before their birth it happened.

The name and the year go only into the link you send.

Download the day’s picture

All 366 days

How the globe is made

Where the events come from

Each edition of this page uses the day’s list from Wikipedia in its own language: Romanian, English, Spanish, Chinese. The lists are written by volunteers and differ from one edition to the next; the text of each event is Wikipedia’s, with a link to the article. A row that appears twice in a list is shown once. The lists have not been checked event by event: they are Wikipedia’s, mistakes included.

For events before 1582, and for countries that moved to the Gregorian calendar later (Britain in 1752, Russia in 1918), the same day may be counted Old Style in one list and New Style in another.

The chapter “What the other Wikipedias remember” adds up to five events a day from the lists of the other three editions, only for years in which the English list has nothing on that day. They were translated for this page, passed the same filters as the tour, and are not counted among the events of the English list.

How an event gets onto the map

The place comes from Wikidata. If the sentence links to the article about the event itself (a battle, an opening, an earthquake), dated to the same year, the ray stands on its coordinates or on those of its location. Otherwise it stands on the first place the sentence links to: a town, a building, a mountain, an island. This second step can be wrong: sometimes the sentence only mentions the place. That is why the page says, under each event, which place the ray stands on.

When the sentence links to a single state or province, or to a single sea, lake or desert larger than 5,000 km², the globe shows a dashed circle, not a ray. The circle has the area Wikidata gives, with its radius kept between 1.2° and 16°, or a radius of 4.5° when Wikidata gives no area; it says only that the sentence links to that place. Organisations, ships, spacecraft, museum objects, rivers, mountain ranges, languages and continents are never used as places. When a sentence names several states and no exact place, the event stays in the list only.

What the height means

The height of a ray shows how many years have passed, on a logarithmic scale: 10 years, 100 years and 1,000 years are equal steps apart; anything older than about 2,600 years has the tallest ray. The colour runs from pale yellow for recent years to violet for antiquity.

Where the tour stops

In each region the tour stops at up to three events (five in Britain and Ireland), chosen mainly by three things: whether Wikipedia’s editors put the event in the “On this day” box of their main page (the English, Spanish and Chinese editions), how many Wikipedia editions have an article about it, and how many of the four lists include it. Events whose sentence or article is about a war, an attack, a crime or a disaster are left out of the tour; they stay in the whole list, in Wikipedia’s wording. The filter is a list of words and a list of Wikidata types, so it can miss some.

The tour of births names the people with articles in the most editions and leaves aside those whom the list or Wikidata describes as rulers, politicians, commanders, leaders of movements or criminals; they stay in the list.

The Earth and the Sun

The daytime images are NASA’s Blue Marble Next Generation mosaics, one for each month of 2004; the night side is Black Marble 2016. The tilt of the line between day and night is computed for the day; the hour is chosen so that the place being read is in daylight. The latitude where the Sun stands overhead is the average of the four years of the leap cycle; in a given year it can differ by up to 0.4°.

The day you were born

The number ones come from the weekly lists on Wikipedia: Billboard for the United States (from 1940; the Hot 100 from August 1958), the UK Singles Chart (from November 1952), Los 40 Principales for Spain (from July 1966) and, for Romania, the Romanian Top 100 and Airplay 100 (2001–2021, with missing weeks). The page shows the chart of the week in which the day of birth falls, with its date; Billboard and the UK chart are dated at the end of their week. For Romania before 2001 and for China these sources have no weekly chart.

The films are those that reached cinemas in the United States up to ten days before or three days after that day (some of them in a few cinemas at first), from the English Wikipedia’s yearly lists (from 1968), in order of how many editions have an article about them. The events “in those days” are the ones on the neighbouring days’ lists that carry the year of birth, passed through the same filter as the tour.

The day of birth, year included

The Moon, the star sign and the constellation are worked out by the page itself, for noon Universal Time on the day. The lit part of the Moon is rounded and can differ by a few per cent from that at the hour of birth. The sign follows the usual zodiac of twelve equal parts starting at the March equinox; the constellation is the one the Sun actually stood in front of, by the borders set by the International Astronomical Union, and within a day of a border the page does not name it. When the Sun changes sign while it is that day anywhere on Earth, the page gives the moment of crossing, rounded to ten minutes and accurate to within about a quarter of an hour, and the clock time in a few cities, with the time zone and summer time of that year.

The year in the Chinese calendar is the one your device’s own calendar gives for the date, checked against the Hong Kong Observatory’s tables. “All your birthdays” uses the same sources as the rest of the chapter for the same day in every year since the birth: the temperature, well-known launches that took place on that very day, matches of the teams the edition follows, snow deeper than 10 cm and strong geomagnetic storms. The three things at the top and the four on the picture are chosen in a fixed order (the song, the animal, a full Moon, a well-known launch before an ordinary earthquake); on the picture you can change them.

When the link carries a year of birth, the page adds a few things about that exact day. The weather is the Met Office’s Central England temperature record and the readings from New York’s Central Park; the “usual high” is the average of the daily highs of 1961–1990 for that date, with two days either side. The carbon dioxide figure is the monthly mean at the Mauna Loa observatory, where measurements begin in March 1958.

The earthquake is the one with the largest magnitude in the USGS catalogue for that day, counted in Universal Time. Before the 1960s the catalogue has gaps even above magnitude 5.5, so in the older years many days have no earthquake. The page gives only the magnitude and the place: the country the epicentre falls in or, when the epicentre is at sea within 300 km of a coast, the nearest country; farther out, only the ocean.

The launches are those that reached orbit or left for the Moon and the planets, from Jonathan McDowell’s GCAT catalogue. If nothing left that day, the page shows the nearest launch within three days before or after, and says how many days away it was. The geomagnetic storm appears only when the Kp index reached at least 5 in one of the day’s eight three-hour intervals.

The animal comes from GBIF: an observation made by a person (the animal seen or heard, or its tracks), dated to that exact day, with coordinates and a CC0 or CC BY licence. Only a few hundred well-known species are searched (mammals, birds, turtles, butterflies); of those noted that day, mammals and species with articles in many Wikipedia editions come first; birds noted almost every day, and species used recently, wait their turn. Observations dated 1 January are left out, because records without a day are often filed there. An observation shows that the animal was recorded there, not how many animals there were.

The matches are those between national teams. Only matches of England, Scotland, Wales, Northern Ireland, the Republic of Ireland, the United States, Canada and Australia are shown, along with those at the big final tournaments. The picture to send is drawn in the page from the day’s globe and the facts above, and stays on your device until you send it.

Sources

More pages about birthdays