A day on the globeROENES中文
The Earth on 10 October, with the rays of the day’s events
  1. A birthday on the globe

    10 October on the globe: what happened in the world on this day, and who was born

    For 10 October, the English Wikipedia lists 56 events and 261 births. 30 of the events stand at their places as rays of light; five 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 10 October

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

    On 10 October the Sun passes straight overhead at noon along the parallel of 6.6° south. In London, the day lasts about 11 hours 5 minutes.

    Beyond 83° south the Sun no longer sets; beyond 83° north 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. 10 October

    Europe#

    10 events from the day’s list are placed here, between 732 and 1979.

    The globe stops at three of them; the whole list is further down. All 10

  4. Europe · 1920 Carinthian plebiscite

    1920

    The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.

    On the map: the coordinates Wikidata gives for the article “1920 Carinthian plebiscite”.

    Wikipedia: 1920 Carinthian plebiscite

  5. Europe · Munich Agreement

    1938

    Abiding by the Munich Agreement, Czechoslovakia completes its withdrawal from the Sudetenland.

    On the map: the coordinates Wikidata gives for the article “Munich Agreement”.

    Also on the day’s list of Wikipedia in Spanish.

    Wikipedia: Munich Agreement

  6. Europe · Moscow

    1967

    The Outer Space Treaty comes into force.

    On the map: Moscow.

    Also on the day’s list of Wikipedia in Chinese.

    Wikipedia: Outer Space Treaty

  7. 10 October

    Africa#

    Three events from the day’s list are placed here, between 1963 and 1998.

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

  8. Africa · Bizerte

    1963

    France cedes control of the Bizerte naval base to Tunisia.

    On the map: Bizerte.

    Also on the day’s list of Wikipedia in Spanish.

    Wikipedia: Bizerte

  9. 10 October

    Asia#

    Eight events from the day’s list are placed here, between 415 and 2015.

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

  10. Asia · Hagia Sophia

    415

    The second church structure of Hagia Sophia was inaugurated.

    On the map: Hagia Sophia.

    Wikipedia: Hagia Sophia

  11. Asia · Vidyasagar Setu

    1992

    After 20 years of construction, Vidyasagar Setu, the longest cable-stayed bridge in India, opened, joining Kolkata and Howrah.

    On the map: Vidyasagar Setu.

    Also on the day’s list of Wikipedia in Chinese.

    Wikipedia: Vidyasagar Setu

  12. 10 October

    North America#

    Six events from the day’s list are placed here, between 1814 and 2018.

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

  13. North America · Annapolis, Maryland

    1845

    In Annapolis, Maryland, the Naval School (later the United States Naval Academy) opens with 50 students.

    On the map: Annapolis, Maryland.

    Also on the day’s list of Wikipedia in Spanish.

    Wikipedia: United States Naval Academy

  14. 10 October

    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 Romanian and were translated for this page.

  15. From Wikipedia in Romanian · Windsor Castle

    1361

    Joan of Kent marries Edward of Woodstock, the Black Prince, at Windsor Castle.

    On the map: Windsor Castle.

    Translated from the list on Wikipedia in Romanian.

    The article on Wikipedia in Romanian: Castelul Windsor

  16. 10 October

    Born on 10 October#

    The English Wikipedia lists 261 births for this day. The blue points are the birthplaces of 59 of these people: those written about in the most Wikipedia editions, where Wikidata gives a place of birth.

  17. Born on 10 October

    1813

    Giuseppe Verdi, Italian composer and philanthropist (died 1901)

    Place of birth: Le Roncole.

    Wikipedia: Giuseppe Verdi

  18. Born on 10 October

    1861

    Fridtjof Nansen, Norwegian explorer, scientist, and humanitarian, Nobel Prize laureate (died 1930)

    Place of birth: Vestre Aker.

    Wikipedia: Fridtjof Nansen

  19. Born on 10 October

    1930

    Harold Pinter, English playwright, screenwriter, director Nobel Prize laureate (died 2008)

    Place of birth: London.

    Wikipedia: Harold Pinter

  20. Born on 10 October

    1913

    Claude Simon, Malagasy-French novelist and critic, Nobel Prize laureate (died 2005)

    Place of birth: Antananarivo.

    Wikipedia: Claude Simon

  21. Born on 10 October

    1731

    Henry Cavendish, French-English chemist, physicist, and philosopher (died 1810)

    Place of birth: Nice.

    Wikipedia: Henry Cavendish

  22. Born in Britain and Ireland

    1946

    Charles Dance, English actor, director, and screenwriter

    Place of birth: Redditch.

    Wikipedia: Charles Dance

  23. Born in Britain and Ireland

    1966

    Tony Adams, English footballer and manager

    Place of birth: Romford.

    Wikipedia: Tony Adams

  24. Born in Britain and Ireland

    1982

    Dan Stevens, English actor

    Place of birth: Croydon.

    Wikipedia: Dan Stevens

  25. 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 10 October

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 21 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. 19

    The Roman general Germanicus dies near Antioch. He was convinced that the mysterious illness that ended in his death was a result of poisoning by the Syrian governor Gnaeus Calpurnius Piso, whom he had ordered to leave the province.

    no place on the mapWikipedia: Germanicus
  2. 415

    The second church structure of Hagia Sophia was inaugurated.

    Asia · Hagia SophiaWikipedia: Hagia Sophia
  3. 680

    The Battle of Karbala marks the martyrdom of Husayn ibn Ali.

    Asia · Battle of KarbalaWikipedia: Battle of Karbala
  4. 732

    Charles Martel's forces defeat an Umayyad army near Tours, France.

    Europe · Battle of ToursWikipedia: Battle of Tours
  5. 1471

    Sten Sture the Elder, the Regent of Sweden, with the help of farmers and miners, repels an attack by King Christian I of Denmark.

    Europe · Battle of BrunkebergWikipedia: Battle of Brunkeberg
  6. 1492

    The crew of Christopher Columbus's ship, the Santa Maria, attempt a mutiny.

  7. 1507

    The Kingdom of Hormuz recognises the sovereignty of the Portuguese king following a battle with the forces of Afonso de Albuquerque.

    Asia · Hormuz IslandWikipedia: Portuguese conquest of Hormuz
  8. 1575

    Roman Catholic forces under Henry I, Duke of Guise, defeat the Protestants, capturing Philippe de Mornay among others.

    Europe · DormansWikipedia: Battle of Dormans
  9. 1580

    Over 600 Papal troops land in Ireland to support the Second Desmond Rebellion.

    Britain & Ireland · Kingdom of IrelandWikipedia: Second Desmond Rebellion
  10. 1760

    In a treaty with the Dutch colonial authorities, the Ndyuka people of Suriname – descended from escaped slaves – gain territorial autonomy.

    no place on the mapWikipedia: Ndyuka people
  11. 1780

    The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.

    Oceans · North Atlantic OceanWikipedia: Great Hurricane of 1780
  12. 1814

    War of 1812: The United States Revenue Marine attempts to defend the cutter Eagle from the Royal Navy.

    North America · Defense of the cutter EagleWikipedia: Defense of the cutter Eagle
  13. 1845

    In Annapolis, Maryland, the Naval School (later the United States Naval Academy) opens with 50 students.

    North America · Annapolis, MarylandWikipedia: United States Naval Academy
  14. 1846

    Triton, the largest moon of the planet Neptune, is discovered by English astronomer William Lassell.

    no place on the mapWikipedia: Triton
  15. 1868

    The Ten Years' War begins against Spanish rule in Cuba.

    no place on the mapWikipedia: Ten Years' War
  16. 1903

    The Women's Social and Political Union is founded in support of the enfranchisement of British women.

  17. 1911

    The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.

    Asia · Wuchang UprisingWikipedia: Wuchang Uprising
  18. 1913

    U.S. President Woodrow Wilson triggers the explosion of the Gamboa Dike, completing major construction on the Panama Canal.

    no place on the mapWikipedia: Woodrow Wilson
  19. 1918

    RMS Leinster is torpedoed and sunk by UB-123, killing 564, the largest loss of life on the Irish Sea.

    no place on the mapWikipedia: RMS Leinster
  20. 1920

    The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.

    Europe · 1920 Carinthian plebisciteWikipedia: 1920 Carinthian plebiscite
  21. 1928

    Chiang Kai-shek becomes Chairman of the Republic of China.

    no place on the mapWikipedia: Chiang Kai-shek
  22. 1933

    A United Airlines Boeing 247 is destroyed by sabotage, the first such proven case in the history of commercial aviation.

    North America · United Air Lines Flight 23Wikipedia: United Air Lines Flight 23
  23. 1935

    In Greece, a coup d'état ends the Second Hellenic Republic.

    Europe · Second Hellenic RepublicWikipedia: Coup d'état
  24. 1938

    Abiding by the Munich Agreement, Czechoslovakia completes its withdrawal from the Sudetenland.

    Europe · Munich AgreementWikipedia: Munich Agreement
  25. 1943

    World War II: The Kempeitai, the military police arm of the Imperial Japanese Army, arrested and tortured fifty-seven civilians and civilian internees on suspicion of their involvement in a raid on Singapore Harbour.

    Asia · Double Tenth incidentWikipedia: Double Tenth incident
  26. 1945

    The Double Tenth Agreement is signed by the Communist Party and the Kuomintang about the future of China.

  27. 1954

    The Minister of Foreign Affairs of the Sultanate of Muscat, Neil Innes, sends a signal to the Sultanate's forces, accompanied with oil explorers, to penetrate Fahud, marking the beginning of Jebel Akhdar War.

    Asia · FahudWikipedia: Jebel Akhdar War
  28. 1957

    The Windscale fire results in Britain's worst nuclear accident.

    Britain & Ireland · Windscale fireWikipedia: Windscale fire
  29. 1957

    U.S. President Dwight D. Eisenhower apologizes to Ghanaian finance minister Komla Agbeli Gbedemah after he is refused service in a Delaware restaurant.

  30. 1963

    France cedes control of the Bizerte naval base to Tunisia.

    Africa · BizerteWikipedia: Bizerte
  31. 1963

    The Partial Nuclear Test Ban Treaty comes into effect.

    Europe · MoscowWikipedia: Partial Nuclear Test Ban Treaty
  32. 1964

    The Tokyo Summer Olympics opening ceremony is the first to be relayed live by satellites.

  33. 1967

    The Outer Space Treaty comes into force.

    Europe · MoscowWikipedia: Outer Space Treaty
  34. 1969

    King Crimson releases their debut album, In the Court of the Crimson King.

    no place on the mapWikipedia: King Crimson
  35. 1970

    Canada's October Crisis escalates when Quebec Vice Premier Pierre Laporte is kidnapped by members of the Front de libération du Québec.

    North America · October CrisisWikipedia: October Crisis
  36. 1970

    Fiji becomes independent.

    Oceania · FijiWikipedia: Fiji
  37. 1971

    Aeroflot Flight 773 is destroyed by a bomb over Moscow Oblast, killing 25.

    Europe · Aeroflot Flight 773Wikipedia: Aeroflot Flight 773
  38. 1973

    U.S. Vice President Spiro Agnew resigns after being charged with evasion of federal income tax.

    no place on the mapWikipedia: Spiro Agnew
  39. 1975

    Papua New Guinea joins the United Nations.

    Oceania · Papua New GuineaWikipedia: Papua New Guinea
  40. 1979

    The Olkiluoto Nuclear Power Plant began operations in Eurajoki, Satakunta, Finland.

    Europe · Olkiluoto Nuclear Power PlantWikipedia: Olkiluoto Nuclear Power Plant
  41. 1980

    The 7.1 Mw El Asnam earthquake shakes northern Algeria, killing 2,633 and injuring 8,369.

    Africa · 1980 El Asnam earthquakeWikipedia: 1980 El Asnam earthquake
  42. 1980

    The Farabundo Martí National Liberation Front is founded in El Salvador.

  43. 1985

    US Navy aircraft intercept an Egyptian airliner carrying the perpetrators of the Achille Lauro hijacking, and force it to land in Italy.

  44. 1986

    A 5.7 Mw San Salvador earthquake shakes El Salvador, killing 1,500.

    Latin America · 1986 San Salvador earthquakeWikipedia: 1986 San Salvador earthquake
  45. 1992

    After 20 years of construction, Vidyasagar Setu, the longest cable-stayed bridge in India, opened, joining Kolkata and Howrah.

    Asia · Vidyasagar SetuWikipedia: Vidyasagar Setu
  46. 1997

    Austral Líneas Aéreas Flight 2553 crashes and explodes in Uruguay, killing 74.

    Latin America · Austral Líneas Aéreas Flight 2553Wikipedia: Austral Líneas Aéreas Flight 2553
  47. 1998

    A Lignes Aériennes Congolaises jetliner is shot down by rebels in Kindu, Democratic Republic of the Congo, killing 41 people.

    Africa · KinduWikipedia: 1998 Congo Airlines Boeing 727 crash
  48. 2002

    Iraq War: The United States Congress approves the Authorization for Use of Military Force Against Iraq Resolution of 2002.

    North America · United States CongressWikipedia: Iraq War
  49. 2004

    Eight-year-old Huang Na was abducted and murdered; her body was found three weeks later after a search across Singapore and Malaysia.

  50. 2007

    Sheikh Muszaphar Shukor becomes the first Malaysian in space on board Soyuz TMA-11.

  51. 2009

    Armenia and Turkey sign the Zurich Protocols, intended to normalize relations. However, they are never ratified by either side.

    no place on the mapWikipedia: Zurich Protocols
  52. 2010

    The Netherlands Antilles are dissolved as a country.

    Oceans · Netherlands AntillesWikipedia: Netherlands Antilles
  53. 2015

    Twin bomb blasts in the Turkish capital Ankara kill 109 and injure 500+.

    Asia · 2015 Ankara bombingsWikipedia: 2015 Ankara bombings
  54. 2018

    Hurricane Michael makes landfall in the Florida Panhandle as a catastrophic Category 5 hurricane. It kills 57 people in the United States, 45 in Florida, and causes an estimated $25.1 billion in damage.

    North America · Florida panhandleWikipedia: Hurricane Michael
  55. 2018

    The National Fire and Rescue Administration is founded, replacing the China Fire Services [zh] and the People's Armed Police Forestry Corps [zh] as China's primary firefighting agency.

  56. 2022

    Ben S. Bernanke, Douglas W. Diamond and Philip H. Dybvig are jointly awarded the Nobel Memorial Prize in Economic Sciences.

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 Romanian and were translated for this page.

  1. 1361

    Joan of Kent marries Edward of Woodstock, the Black Prince, at Windsor Castle.

    Britain & Ireland · Windsor CastleTranslated from the list on Wikipedia in RomanianWikipedia: Castelul Windsor

Who was born on 10 October

In order of how many Wikipedia editions have an article about each. The first 60 of 261 are shown.

  1. 1813

    Giuseppe Verdi, Italian composer and philanthropist (died 1901)

    Le RoncoleWikipedia: Giuseppe Verdi
  2. 1861

    Fridtjof Nansen, Norwegian explorer, scientist, and humanitarian, Nobel Prize laureate (died 1930)

    Vestre AkerWikipedia: Fridtjof Nansen
  3. 1930

    Harold Pinter, English playwright, screenwriter, director Nobel Prize laureate (died 2008)

    LondonWikipedia: Harold Pinter
  4. 1946

    Naoto Kan, Japanese lawyer and politician, 61st Prime Minister of Japan

    UbeWikipedia: Naoto Kan
  5. 1913

    Claude Simon, Malagasy-French novelist and critic, Nobel Prize laureate (died 2005)

    AntananarivoWikipedia: Claude Simon
  6. 1731

    Henry Cavendish, French-English chemist, physicist, and philosopher (died 1810)

    NiceWikipedia: Henry Cavendish
  7. 1830

    Isabella II of Spain (died 1904)

    MadridWikipedia: Isabella II
  8. 1900

    Helen Hayes, American actress (died 1993)

    Washington, D.C.Wikipedia: Helen Hayes
  9. 1991

    Xherdan Shaqiri, Swiss footballer

    GjilanWikipedia: Xherdan Shaqiri
  10. 1684

    Jean-Antoine Watteau, French painter (died 1721)

    ValenciennesWikipedia: Antoine Watteau
  11. 1936

    Gerhard Ertl, German physicist and chemist, Nobel Prize laureate

    StuttgartWikipedia: Gerhard Ertl
  12. 1901

    Alberto Giacometti, Swiss sculptor and painter (died 1966)

    BorgonovoWikipedia: Alberto Giacometti
  13. 1917

    Thelonious Monk, American pianist and composer (died 1982)

    Rocky MountWikipedia: Thelonious Monk
  14. 1834

    Aleksis Kivi, Finnish author and playwright (died 1872)

    PalojokiWikipedia: Aleksis Kivi
  15. 1908

    Mercè Rodoreda, Catalan author and poet (died 1983)

    BarcelonaWikipedia: Mercè Rodoreda
  16. 1930

    Yves Chauvin, French chemist and academic, Nobel Prize laureate (died 2015)

    MenenWikipedia: Yves Chauvin
  17. 1954

    Rekha, Indian actress

    ChennaiWikipedia: Rekha
  18. 1946

    Charles Dance, English actor, director, and screenwriter

    RedditchWikipedia: Charles Dance
  19. 1967

    Gavin Newsom, American businessman and politician, 40th and current Governor of California

    San FranciscoWikipedia: Gavin Newsom
  20. 1825

    Paul Kruger, South African soldier and politician, 5th President of the South African Republic (died 1904)

    Cape ColonyWikipedia: Paul Kruger
  21. 1906

    R. K. Narayan, Indian author (died 2001)

    ChennaiWikipedia: R. K. Narayan
  22. 1950

    Nora Roberts, American author

    Silver SpringWikipedia: Nora Roberts
  23. 1954

    Fernando Santos, Portuguese footballer and manager

    LisbonWikipedia: Fernando Santos
  24. 1966

    Tony Adams, English footballer and manager

    RomfordWikipedia: Tony Adams
  25. 1994

    Bae Suzy, South Korean singer, actress and model

    GwangjuWikipedia: Bae Suzy
  26. 1957

    Rumiko Takahashi, Japanese author and illustrator

    NiigataWikipedia: Rumiko Takahashi
  27. 1941

    Ken Saro-Wiwa, Nigerian author and activist (died 1995)

    BoriWikipedia: Ken Saro-Wiwa
  28. 1956

    Taur Matan Ruak, East Timorese politician, 3rd President of East Timor

    Osso HunaWikipedia: Taur Matan Ruak
  29. 1924

    Ed Wood, American actor, director, producer, screenwriter (died 1978)

    PoughkeepsieWikipedia: Ed Wood
  30. 1982

    Dan Stevens, English actor

    CroydonWikipedia: Dan Stevens
  31. 1985

    Marina Diamandis, Welsh singer-songwriter and pianist

    BrynmawrWikipedia: Marina Diamandis
  32. 1965

    Chris Penn, American actor (died 2006)

    Los AngelesWikipedia: Chris Penn
  33. 1971

    Evgeny Kissin, Russian pianist

    MoscowWikipedia: Evgeny Kissin
  34. 1770

    Adam Johann von Krusenstern Imperial Russian Admiral and explorer (died 1846)

    Hagudi manorWikipedia: Adam Johann von Krusenstern
  35. 1967

    Michael Giacchino, American composer

    RiversideWikipedia: Michael Giacchino
  36. 1924

    James Clavell, Australian-American director, producer, screenwriter, and author (died 1994)

    SydneyWikipedia: James Clavell
  37. 1966

    Bai Ling, Chinese-American model and actress

    ChengduWikipedia: Bai Ling
  38. 1332

    King Charles II of Navarre (died 1387)

    ÉvreuxWikipedia: Charles II of Navarre
  39. 1954

    David Lee Roth, American singer-songwriter and producer

    BloomingtonWikipedia: David Lee Roth
  40. 1967

    Jonathan Littell, American-French author and humanitarian

    New York CityWikipedia: Jonathan Littell
  41. 1560

    Jacobus Arminius, Dutch theologian (died 1609)

    OudewaterWikipedia: Jacobus Arminius
  42. 1895

    Wolfram Freiherr von Richthofen, German field marshal (died 1945)

    BartoszówekWikipedia: Wolfram von Richthofen
  43. 1959

    Bradley Whitford, American actor and producer

    MadisonWikipedia: Bradley Whitford
  44. 1974

    Julio Ricardo Cruz, Argentinian footballer

    Santiago del EsteroWikipedia: Julio Cruz
  45. 1979

    Nicolás Massú, Chilean tennis player

    Viña del MarWikipedia: Nicolás Massú
  46. 1941

    Peter Coyote, American actor, director, and screenwriter

    ManhattanWikipedia: Peter Coyote
  47. 786

    Saga, emperor of Japan (died 842)

  48. 1984

    Chiaki Kuriyama, Japanese actress and singer

    TsuchiuraWikipedia: Chiaki Kuriyama
  49. 1991

    Lali Espósito, Argentinian actress and singer

    Buenos AiresWikipedia: Lali Espósito
  50. 1738

    Benjamin West, American painter (died 1820)

    Springfield TownshipWikipedia: Benjamin West
  51. 1889

    Han van Meegeren, Dutch painter and forger (died 1947)

    DeventerWikipedia: Han van Meegeren
  52. 1942

    Radu Vasile, Romanian historian and politician, 57th Prime Minister of Romania (died 2013)

    SibiuWikipedia: Radu Vasile
  53. 1948

    Séverine, French singer and actress

    6th arrondissement of ParisWikipedia: Séverine
  54. 1963

    Daniel Pearl, American-Israeli journalist (died 2002)

    PrincetonWikipedia: Daniel Pearl
  55. 1978

    Jodi Lyn O'Keefe, American model and actress

    Cliffwood BeachWikipedia: Jodi Lyn O'Keefe
  56. 1991

    Gabriella Cilmi, Australian singer-songwriter and producer

    City of Greater DandenongWikipedia: Gabriella Cilmi
  57. 1486

    Charles III, Duke of Savoy (died 1553)

    Chazey-sur-AinWikipedia: Charles III of Savoy
  58. 1969

    Manu Bennett, New Zealand-Australian actor

    RotoruaWikipedia: Manu Bennett
  59. 1969

    Brett Favre, American football player

    GulfportWikipedia: Brett Favre
  60. 1895

    Alfred Neuland, Estonian weightlifter (died 1966)

    WalkWikipedia: Alfred Neuland

What is celebrated on 10 October

  • Aleksis Kivi Day, also known as the Finnish Literature Day (Finland)
  • Arbor Day (Poland)
  • Army Day (Sri Lanka)
  • Capital Liberation Day (Vietnam)
  • Christian feast day: Blessed Angela Truszkowska
  • Christian feast day: Cerbonius
  • Christian feast day: Daniele Comboni
  • Christian feast day: Blessed Edward Detkens
  • Christian feast day: Eulampius and Eulampia
  • Christian feast day: Gereon and companions
  • Christian feast day: Blessed María Catalina Irigoyen Echegaray (Maria Desposorios)
  • Christian feast day: Paulinus of York (in England)
  • Christian feast day: Pinytus
  • Christian feast day: Tanca

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