A day on the globeROENES中文
The Earth on 18 February, with the rays of the day’s events
  1. A birthday on the globe

    18 February on the globe: what happened in the world on this day, and who was born

    For 18 February, the English Wikipedia lists 54 events and 145 births. 27 of the events stand at their places as rays of light; four 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 18 February

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

    On 18 February the Sun passes straight overhead at noon along the parallel of 11.8° south. In London, the day lasts about 10 hours 10 minutes.

    Beyond 78° south the Sun no longer sets; beyond 78° 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. 18 February

    Europe#

    Seven events from the day’s list are placed here, between 1268 and 2014.

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

  4. Europe · Brussels

    1906

    Édouard de Laveleye forms the Belgian Olympic Committee in Brussels.

    On the map: Brussels.

    Wikipedia: Édouard de Laveleye

  5. 18 February

    Asia#

    11 events from the day’s list are placed here, between 1229 and 2018.

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

  6. Asia · Prayagraj

    1911

    The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2 mi) away.

    On the map: Prayagraj.

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

    Wikipedia: Airmail

  7. 18 February

    North America#

    Six events from the day’s list are placed here, between 1861 and 1983.

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

  8. North America · Montgomery, Alabama

    1861

    In Montgomery, Alabama, Jefferson Davis is inaugurated as the provisional President of the Confederate States of America.

    On the map: Montgomery, Alabama.

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

    Wikipedia: Montgomery, Alabama

  9. North America · Los Angeles

    1954

    The first Church of Scientology is established in Los Angeles.

    On the map: Los Angeles.

    Wikipedia: Church of Scientology

  10. 18 February

    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.

  11. From Wikipedia in Spanish · 1968 Winter Olympics

    1968

    In Grenoble (France), the French skier Jean-Claude Killy wins three gold medals at the Olympic Games.

    On the map: 1968 Winter Olympics.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Juegos Olímpicos de Grenoble 1968

  12. From Wikipedia in Spanish · Berlin

    1994

    In Berlin (Germany), Sophia Loren receives a special Golden Bear from the International Film Festival in recognition of her film career.

    On the map: Berlin.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Festival Internacional de Cine de Berlín

  13. 18 February

    Born on 18 February#

    The English Wikipedia lists 145 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.

  14. Born on 18 February

    1931

    Toni Morrison, American novelist and editor, Nobel Prize laureate (died 2019).

    Place of birth: Lorain.

    Wikipedia: Toni Morrison

  15. Born on 18 February

    1745

    Alessandro Volta, Italian physicist, invented the battery (died 1827)

    Place of birth: Como.

    Wikipedia: Alessandro Volta

  16. Born on 18 February

    1954

    John Travolta, American actor, singer and producer

    Place of birth: Englewood.

    Wikipedia: John Travolta

  17. Born on 18 February

    1836

    Ramakrishna Paramahamsa, Indian mystic and yogi (died 1886)

    Place of birth: Kamarpukur.

    Wikipedia: Ramakrishna

  18. Born on 18 February

    1933

    Yoko Ono, Japanese-American multimedia artist and musician

    Place of birth: Tokyo.

    Wikipedia: Yoko Ono

  19. Born in Britain and Ireland

    1975

    Gary Neville, English footballer

    Place of birth: Bury.

    Wikipedia: Gary Neville

  20. Born in Britain and Ireland

    1933

    Bobby Robson, English footballer and manager (died 2009)

    Place of birth: Sacriston.

    Wikipedia: Bobby Robson

  21. Born in Britain and Ireland

    1929

    Len Deighton, English historian and author (died 2026)

    Place of birth: Marylebone.

    Wikipedia: Len Deighton

  22. 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 18 February

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 23 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. 3102 BC

    Kali Yuga, the fourth and final yuga of Hinduism, starts with the death of Krishna.

    no place on the mapWikipedia: Kali Yuga
  2. 1229

    The Sixth Crusade: Frederick II, Holy Roman Emperor, signs a ten-year truce with al-Kamil, regaining Jerusalem, Nazareth, and Bethlehem with neither military engagements nor support from the papacy.

    Asia · JerusalemWikipedia: Sixth Crusade
  3. 1268

    The Battle of Wesenberg is fought between the Livonian Order and Dovmont of Pskov.

    Europe · Battle of WesenbergWikipedia: Battle of Wesenberg
  4. 1332

    Amda Seyon I, Emperor of Ethiopia begins his campaigns in the southern Muslim provinces.

    no place on the mapWikipedia: Amda Seyon I
  5. 1637

    Eighty Years' War: Off the coast of Cornwall, England, a Spanish fleet intercepts an important Anglo-Dutch merchant convoy of 44 vessels escorted by six warships, destroying or capturing 20 of them.

    Britain & Ireland · Battle off Lizard PointWikipedia: Battle off Lizard Point
  6. 1735

    The ballad opera called Flora, or Hob in the Well went down in history as the first opera of any kind to be produced in North America (Charleston, S.C.)

    no place on the map
  7. 1766

    Enslaved Malagasy captives on the Dutch East India Company slave ship Meermin began a mutiny that led to the ship's destruction on Cape Agulhas in present-day South Africa and the recapture of the instigators.

  8. 1781

    Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).

  9. 1791

    Congress passes a law admitting the state of Vermont to the Union, effective 4 March, after that state had existed for 14 years as a de facto independent largely unrecognized state.

  10. 1797

    French Revolutionary Wars: Sir Ralph Abercromby and a fleet of 18 British warships invade Trinidad.

    Latin America · TrinidadWikipedia: Capture of Trinidad
  11. 1814

    Napoleonic Wars: The Battle of Montereau.

    Europe · Battle of MontereauWikipedia: Battle of Montereau
  12. 1861

    In Montgomery, Alabama, Jefferson Davis is inaugurated as the provisional President of the Confederate States of America.

    North America · Montgomery, AlabamaWikipedia: Montgomery, Alabama
  13. 1861

    With Italian unification almost complete, Victor Emmanuel II of Piedmont, Savoy and Sardinia assumes the title of King of Italy.

  14. 1873

    Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities.

    Europe · SofiaWikipedia: Bulgaria
  15. 1878

    John Tunstall is murdered by outlaw Jesse Evans, sparking the Lincoln County War in Lincoln County, New Mexico.

    North America · Lincoln County, New MexicoWikipedia: Lincoln County War
  16. 1885

    Adventures of Huckleberry Finn by Mark Twain is published in the United States.

  17. 1900

    Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.

    Africa · Bloody SundayWikipedia: Bloody Sunday
  18. 1906

    Édouard de Laveleye forms the Belgian Olympic Committee in Brussels.

    Europe · BrusselsWikipedia: Édouard de Laveleye
  19. 1911

    The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2 mi) away.

    Asia · PrayagrajWikipedia: Airmail
  20. 1915

    U-boat Campaign: The Imperial German Navy institutes unrestricted submarine warfare in the waters around Great Britain and Ireland.

    no place on the mapWikipedia: U-boat campaign
  21. 1930

    Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.

    no place on the mapWikipedia: Elm Farm Ollie
  22. 1930

    While studying photographs taken in January, Clyde Tombaugh discovers Pluto.

    no place on the mapWikipedia: January
  23. 1932

    The Empire of Japan creates the independent state of Manzhouguo (the obsolete Chinese name for Manchuria) free from the Republic of China and installed former Chinese Emperor Puyi as Chief Executive of the State.

    no place on the mapWikipedia: Empire of Japan
  24. 1938

    Second Sino-Japanese War: During the Nanking Massacre, the Nanking Safety Zone International Committee is renamed "Nanking International Rescue Committee", and the safety zone in place for refugees falls apart.

    Asia · Nanjing MassacreWikipedia: Nanjing Massacre
  25. 1942

    World War II: The Imperial Japanese Army begins the systematic extermination of perceived hostile elements among the Chinese in Singapore.

    no place on the mapWikipedia: Sook Ching
  26. 1943

    World War II: Joseph Goebbels delivers his Sportpalast speech.

    Europe · Berlin SportpalastWikipedia: Sportpalast speech
  27. 1943

    World War II: The Nazis arrest the members of the White Rose movement.

    no place on the mapWikipedia: Nazism
  28. 1945

    World War II: American and Brazilian troops kick off Operation Encore in Northern Italy, a successful limited action in the Northern Apennines that prepares for the western portion of the Allied Spring offensive.

  29. 1946

    President Harry S. Truman signed the Rescission Act, annulling benefits payable to Filipino troops who fought for the U.S. during World War II.

    no place on the mapWikipedia: Harry S. Truman
  30. 1946

    Sailors of the Royal Indian Navy mutiny in Bombay harbour, from where the action spreads throughout the Provinces of British India, involving 78 ships, twenty shore establishments and 20,000 sailors

    Asia · MumbaiWikipedia: Royal Indian Navy
  31. 1947

    First Indochina War: The French gain complete control of Hanoi after forcing the Viet Minh to withdraw to the mountains.

    Asia · Battle of HanoiWikipedia: First Indochina War
  32. 1954

    The first Church of Scientology is established in Los Angeles.

    North America · Los AngelesWikipedia: Church of Scientology
  33. 1955

    Operation Teapot: Teapot test shot "Wasp" is successfully detonated at the Nevada Test Site with a yield of 1.2 kilotons. Wasp is the first of fourteen shots in the Teapot series.

    North America · Operation TeapotWikipedia: Operation Teapot
  34. 1957

    Kenyan rebel leader Dedan Kimathi is executed by the British colonial government.

    Africa · KenyaWikipedia: Kenya
  35. 1957

    Walter James Bolton becomes the last person legally executed in New Zealand.

  36. 1965

    The Gambia becomes independent from the United Kingdom.

    Africa · The GambiaWikipedia: The Gambia
  37. 1970

    The Chicago Seven are found not guilty of conspiring to incite riots at the 1968 Democratic National Convention.

  38. 1972

    The California Supreme Court in the case of People v. Anderson, (6 Cal.3d 628) invalidates the state's death penalty and commutes the sentences of all death row inmates to life imprisonment.

  39. 1977

    A thousand armed soldiers raid Kalakuta Republic, the commune of Nigerian singer Fela Kuti, leading to the death of Funmilayo Anikulapo Kuti.

    Africa · Kalakuta RepublicWikipedia: Kalakuta Republic
  40. 1977

    The Space Shuttle Enterprise test vehicle is carried on its maiden "flight" on top of a Boeing 747.

  41. 1977

    The Xinjiang 61st Regiment Farm fire started during Chinese New Year when a firecracker ignited memorial wreaths of the late Mao Zedong, killing 694 personnel. It remains the deadliest fireworks accident in the world.

    Asia · Xinjiang 61st Regiment Farm fireWikipedia: Xinjiang 61st Regiment Farm fire
  42. 1979

    Richard Petty wins a then-record sixth Daytona 500 after leaders Donnie Allison and Cale Yarborough crash on the final lap of the first NASCAR race televised live flag-to-flag.

    North America · Daytona International SpeedwayWikipedia: 1979 Daytona 500
  43. 1983

    Thirteen people die and one is seriously injured in the Wah Mee massacre in Seattle. It is said to be the largest robbery-motivated mass-murder in U.S. history.

    North America · Wah Mee massacreWikipedia: Wah Mee massacre
  44. 1991

    The IRA explodes bombs in the early morning at Paddington station and Victoria station in London.

  45. 2001

    FBI agent Robert Hanssen is arrested for spying for the Soviet Union. He is ultimately convicted and sentenced to life imprisonment.

    Asia · Soviet UnionWikipedia: Federal Bureau of Investigation
  46. 2001

    Sampit conflict: Inter-ethnic violence between Dayaks and Madurese breaks out in Sampit, Central Kalimantan, Indonesia, ultimately resulting in more than 500 deaths and 100,000 Madurese displaced from their homes.

    Asia · SampitWikipedia: Sampit conflict
  47. 2003

    192 people die when an arsonist sets fire to a subway train in Daegu, South Korea.

    Asia · Daegu subway fireWikipedia: Daegu subway fire
  48. 2004

    Up to 295 people, 182 of which being rescue workers, die near Nishapur, Iran, when a runaway freight train carrying sulfur, petrol and fertilizer catches fire and explodes.

    Asia · NishapurWikipedia: Nishapur train disaster
  49. 2010

    In a coup d'état, military rebels attacked the presidential palace in Niamey, Niger, and replaced President Mamadou Tandja with a ruling junta, the Supreme Council for the Restoration of Democracy.

    Africa · 2010 Nigerien coup d'étatWikipedia: 2010 Nigerien coup d'état
  50. 2010

    WikiLeaks publishes the first of hundreds of thousands of classified documents disclosed by the soldier now known as Chelsea Manning.

    no place on the mapWikipedia: WikiLeaks
  51. 2013

    Armed robbers steal a haul of diamonds worth $50 million during a raid at Brussels Airport in Belgium.

    Europe · Brussels Airport diamond heistWikipedia: Brussels Airport diamond heist
  52. 2014

    Revolution of Dignity: At least 76 people are killed and hundreds are injured in clashes between riot police and demonstrators in Kyiv, Ukraine.

    Europe · Revolution of DignityWikipedia: Revolution of Dignity
  53. 2018

    Iran Aseman Airlines Flight 3704 crashes in the Dena sub-range in the Zagros Mountains of Iran, Resulting in 66 Deaths

    Asia · Iran Aseman Airlines Flight 3704Wikipedia: Iran Aseman Airlines Flight 3704
  54. 2021

    Perseverance, a Mars rover designed to explore Jezero crater on Mars, as part of NASA's Mars 2020 mission, lands successfully.

    no place on the mapWikipedia: Perseverance

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. 1968

    In Grenoble (France), the French skier Jean-Claude Killy wins three gold medals at the Olympic Games.

    Europe · 1968 Winter OlympicsTranslated from the list on Wikipedia in SpanishWikipedia: Juegos Olímpicos de Grenoble 1968
  2. 1994

    In Berlin (Germany), Sophia Loren receives a special Golden Bear from the International Film Festival in recognition of her film career.

    Europe · BerlinTranslated from the list on Wikipedia in SpanishWikipedia: Festival Internacional de Cine de Berlín

Who was born on 18 February

In order of how many Wikipedia editions have an article about each. The first 60 of 145 are shown.

  1. 1931

    Toni Morrison, American novelist and editor, Nobel Prize laureate (died 2019).

    LorainWikipedia: Toni Morrison
  2. 1745

    Alessandro Volta, Italian physicist, invented the battery (died 1827)

    ComoWikipedia: Alessandro Volta
  3. 1954

    John Travolta, American actor, singer and producer

    EnglewoodWikipedia: John Travolta
  4. 1836

    Ramakrishna Paramahamsa, Indian mystic and yogi (died 1886)

    KamarpukurWikipedia: Ramakrishna
  5. 1516

    Mary I, Queen of England (died 1558)

    Palace of PlacentiaWikipedia: Mary I
  6. 1933

    Yoko Ono, Japanese-American multimedia artist and musician

    TokyoWikipedia: Yoko Ono
  7. 1965

    Dr. Dre, American rapper, record producer, and entrepreneur

    ComptonWikipedia: Dr. Dre
  8. 1838

    Ernst Mach, Austrian physicist and philosopher (died 1916)

    Brno-ChrliceWikipedia: Ernst Mach
  9. 1967

    Roberto Baggio, Italian footballer

    CaldognoWikipedia: Roberto Baggio
  10. 1883

    Nikos Kazantzakis, Greek philosopher, author, and playwright (died 1957)

    HeraklionWikipedia: Nikos Kazantzakis
  11. 1932

    Miloš Forman, Czech-American actor, director, and screenwriter (died 2018)

    ČáslavWikipedia: Miloš Forman
  12. 1201

    Nasir al-Din al-Tusi, Persian scientist and writer (died 1274)

  13. 1975

    Gary Neville, English footballer

    BuryWikipedia: Gary Neville
  14. 1486

    Chaitanya Mahaprabhu, Indian monk and saint (died 1534)

    NabadwipWikipedia: Chaitanya Mahaprabhu
  15. 1933

    Bobby Robson, English footballer and manager (died 2009)

    SacristonWikipedia: Bobby Robson
  16. 1964

    Matt Dillon, American actor

    New RochelleWikipedia: Matt Dillon
  17. 1919

    Jack Palance, American boxer and actor (died 2006)

    LattimerWikipedia: Jack Palance
  18. 1934

    Audre Lorde, American writer and activist (died 1992)

    Wikipedia: Audre Lorde
  19. 1925

    George Kennedy, American actor (died 2016)

    New York CityWikipedia: George Kennedy
  20. 1860

    Anders Zorn, Swedish artist (died 1920)

    Mora ParishWikipedia: Anders Zorn
  21. 1626

    Francesco Redi, Italian physician (died 1697)

    ArezzoWikipedia: Francesco Redi
  22. 1950

    Cybill Shepherd, American actress

    MemphisWikipedia: Cybill Shepherd
  23. 1994

    J-Hope, South Korean rapper, singer-songwriter, dancer, and record producer

    GwangjuWikipedia: J-Hope
  24. 1849

    Alexander Kielland, Norwegian author, playwright, and politician (died 1906)

    StavangerWikipedia: Alexander Kielland
  25. 1995

    Nathan Aké, Dutch footballer

    The HagueWikipedia: Nathan Aké
  26. 1903

    Nikolai Podgorny, Ukrainian engineer and politician (died 1983)

    KarlivkaWikipedia: Nikolai Podgorny
  27. 1906

    Hans Asperger, Austrian pediatrician and academic (died 1980)

    ViennaWikipedia: Hans Asperger
  28. 1968

    Molly Ringwald, American actress

    RosevilleWikipedia: Molly Ringwald
  29. 1980

    Regina Spektor, Russian-American musician and songwriter

    MoscowWikipedia: Regina Spektor
  30. 1372

    Ibn Hajar al-Asqalani, Egyptian jurist and scholar (died 1448)

    Old CairoWikipedia: Ibn Hajar al-Asqalani
  31. 1984

    Carlos Kameni, Cameroonian footballer

    DoualaWikipedia: Carlos Kameni
  32. 1940

    Fabrizio De André, Italian singer-songwriter and guitarist (died 1999)

    GenoaWikipedia: Fabrizio De André
  33. 1981

    Andrei Kirilenko, Russian-American basketball player

    IzhevskWikipedia: Andrei Kirilenko
  34. 1950

    John Hughes, American director, producer, and screenwriter (died 2009)

    LansingWikipedia: John Hughes
  35. 1957

    Marita Koch, German sprinter

    WismarWikipedia: Marita Koch
  36. 2002

    Manu Bhaker, Indian sports shooter

    JhajjarWikipedia: Manu Bhaker
  37. 1530

    Uesugi Kenshin, Japanese daimyō (died 1578)

    Kasugayama CastleWikipedia: Uesugi Kenshin
  38. 1960

    Greta Scacchi, Italian-Australian actress

    MilanWikipedia: Greta Scacchi
  39. 1929

    Len Deighton, English historian and author (died 2026)

    MaryleboneWikipedia: Len Deighton
  40. 2000

    Giacomo Raspadori, Italian footballer

    BentivoglioWikipedia: Giacomo Raspadori
  41. 1848

    Louis Comfort Tiffany, American stained glass artist (died 1933)

    New York CityWikipedia: Louis Comfort Tiffany
  42. 1983

    Jermaine Jenas, English footballer

    NottinghamWikipedia: Jermaine Jenas
  43. 2000

    Zakaria Aboukhlal, Moroccan footballer

    RotterdamWikipedia: Zakaria Aboukhlal
  44. 1890

    Adolphe Menjou, American actor (died 1963)

    PittsburghWikipedia: Adolphe Menjou
  45. 1936

    Jean M. Auel, American author

    ChicagoWikipedia: Jean M. Auel
  46. 1977

    Ike Barinholtz, American actor and comedian

    ChicagoWikipedia: Ike Barinholtz
  47. 1988

    Roman Neustädter, German-Russian footballer

    DniproWikipedia: Roman Neustädter
  48. 1967

    Colin Jackson, Welsh sprinter and hurdler

    CardiffWikipedia: Colin Jackson
  49. 1988

    Maiara Walsh, American-Brazilian actress

    SeattleWikipedia: Maiara Walsh
  50. 1990

    Bryan Oviedo, Costa Rican footballer

    San JoséWikipedia: Bryan Oviedo
  51. 1892

    Wendell Willkie, American captain, lawyer, and politician (died 1944)

    ElwoodWikipedia: Wendell Willkie
  52. 1909

    Wallace Stegner, American novelist, short story writer, and essayist (died 1993)

    Lake MillsWikipedia: Wallace Stegner
  53. 1974

    Julia Butterfly Hill, American environmentalist and author

    Mount VernonWikipedia: Julia Butterfly Hill
  54. 1952

    Randy Crawford, American jazz and R&B singer

    MaconWikipedia: Randy Crawford
  55. 1993

    Kentavious Caldwell-Pope, American basketball player

    ThomastonWikipedia: Kentavious Caldwell-Pope
  56. 1609

    Edward Hyde, 1st Earl of Clarendon, English historian and politician, Chancellor of the Exchequer (died 1674)

  57. 1871

    Harry Brearley, English inventor (died 1948)

    SheffieldWikipedia: Harry Brearley
  58. 1890

    Edward Arnold, American actor (died 1956)

    ManhattanWikipedia: Edward Arnold
  59. 1959

    Jayne Atkinson, English-American actress

    BournemouthWikipedia: Jayne Atkinson
  60. 1543

    Charles III, Duke of Lorraine (died 1608)

What is celebrated on 18 February

  • Christian feast day: Bernadette Soubirous (France)
  • Christian feast day: Colmán of Lindisfarne
  • Christian feast day: Flavian of Constantinople
  • Christian feast day: Geltrude Comensoli
  • Christian feast day: Simeon of Jerusalem (Western Christianity)
  • Christian feast day: February 18 (Eastern Orthodox liturgics)
  • Dialect Day (Amami Islands, Japan)
  • Independence Day, celebrates the independence of the Gambia from the United Kingdom in 1965
  • Kurdish Students Union Day (Iraqi Kurdistan)
  • National Democracy Day, celebrates the 1951 overthrow of the Rana dynasty (Nepal)

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