A day on the globeROENES中文
The Earth on 8 March, with the rays of the day’s events
  1. A birthday on the globe

    8 March on the globe: what happened in the world on this day, and who was born

    For 8 March, the English Wikipedia lists 49 events and 143 births. 30 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 8 March

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

    On 8 March the Sun passes straight overhead at noon along the parallel of 4.7° south. In London, the day lasts about 11 hours 25 minutes.

    Beyond 85° south the Sun no longer sets; beyond 85° 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. 8 March

    Europe#

    13 events from the day’s list are placed here, between 1126 and 2017.

    The globe stops at three of them; the whole list is further down. All 13

  4. Europe · Pori

    1558

    The city of Pori (Swedish: Björneborg) is founded by Duke John on the shores of the Gulf of Bothnia.

    On the map: Pori.

    Wikipedia: Pori

  5. Europe · Althing

    1844

    The Althing, the parliament of Iceland, is reopened after 45 years of closure.

    On the map: Althing.

    Wikipedia: Althing

  6. Europe · Élysée Palace

    1949

    President of France Vincent Auriol and ex-Vietnamese emperor Bảo Đại sign the Élysée Accords, giving Vietnam greater independence from France and creating the State of Vietnam to oppose Viet Minh-led Democratic Republic of Vietnam.

    On the map: Élysée Palace.

    Wikipedia: Élysée Accords

  7. 8 March

    Asia#

    12 events from the day’s list are placed here, between 1722 and 2018.

    The globe stops at one of them; the whole list is further down. All 12

  8. Asia · Kuala Lumpur

    2014

    In one of aviation's greatest mysteries, Malaysia Airlines Flight 370, carrying a total of 239 people, disappears en route from Kuala Lumpur to Beijing. The fate of the flight remains unknown.

    On the map: Kuala Lumpur.

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

    Wikipedia: Malaysia Airlines Flight 370

  9. 8 March

    Latin America and the Caribbean#

    Two events from the day’s list are placed here, between 1576 and 2021.

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

  10. Latin America · Copán

    1576

    A Spanish colonial officer wrote a letter to King Philip II containing the first known mention of the Maya ruins of Copán in present-day Honduras.

    On the map: Copán.

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

    Wikipedia: Philip II of Spain

  11. 8 March

    North America#

    Four events from the day’s list are placed here, between 1655 and 1936.

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

  12. North America · Daytona Beach and Road Course

    1936

    Daytona Beach and Road Course holds its first oval stock car race.

    On the map: Daytona Beach and Road Course.

    Wikipedia: Daytona Beach and Road Course

  13. 8 March

    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 Chinese and Romanian and were translated for this page.

  14. From Wikipedia in Chinese · New York City

    1817

    The New York Stock Exchange is founded in New York when the New York traders' association drafts its constitution on the basis of the Buttonwood Agreement.

    On the map: New York City.

    Translated from the list on Wikipedia in Chinese.

    The article on Wikipedia in Chinese: 纽约证券交易所

  15. From Wikipedia in Romanian · Prague

    1968

    In Prague, Czechoslovak students declare their support for the liberalisation movement known as the Prague Spring.

    On the map: Prague.

    Translated from the list on Wikipedia in Romanian.

    The article on Wikipedia in Romanian: Primăvara de la Praga

  16. 8 March

    Born on 8 March#

    The English Wikipedia lists 143 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.

  17. Born on 8 March

    1879

    Otto Hahn, German chemist and academic, Nobel Prize laureate (died 1968)

    Place of birth: Frankfurt.

    Wikipedia: Otto Hahn

  18. Born on 8 March

    1714

    Carl Philipp Emanuel Bach, German pianist and composer (died 1788)

    Place of birth: Weimar.

    Wikipedia: Carl Philipp Emanuel Bach

  19. Born on 8 March

    1990

    Petra Kvitová, Czech tennis player

    Place of birth: Bílovec.

    Wikipedia: Petra Kvitová

  20. Born on 8 March

    1922

    Cyd Charisse, American actress and dancer (died 2008)

    Place of birth: Amarillo.

    Wikipedia: Cyd Charisse

  21. Born on 8 March

    1886

    Edward Calvin Kendall, American chemist and academic, Nobel Prize laureate (died 1972)

    Place of birth: South Norwalk.

    Wikipedia: Edward Calvin Kendall

  22. Born in Britain and Ireland

    1859

    Kenneth Grahame, British author (died 1932)

    Place of birth: Edinburgh.

    Wikipedia: Kenneth Grahame

  23. Born in Britain and Ireland

    1943

    Lynn Redgrave, English-American actress and singer (died 2010)

    Place of birth: Marylebone.

    Wikipedia: Lynn Redgrave

  24. Born in Britain and Ireland

    1924

    Anthony Caro, English sculptor and illustrator (died 2013)

    Place of birth: Surrey.

    Wikipedia: Anthony Caro

  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 8 March

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 16 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. 1010

    Ferdowsi completes his epic poem Shahnameh.

    no place on the mapWikipedia: Ferdowsi
  2. 1126

    Following the death of his mother, queen Urraca of León, Alfonso VII is proclaimed king of León.

    Europe · Kingdom of LeónWikipedia: Urraca of León and Castile
  3. 1262

    Battle of Hausbergen between bourgeois militias and the army of the bishop of Strasbourg.

    Europe · Battle of HausbergenWikipedia: Battle of Hausbergen
  4. 1558

    The city of Pori (Swedish: Björneborg) is founded by Duke John on the shores of the Gulf of Bothnia.

    Europe · PoriWikipedia: Pori
  5. 1576

    A Spanish colonial officer wrote a letter to King Philip II containing the first known mention of the Maya ruins of Copán in present-day Honduras.

    Latin America · CopánWikipedia: Philip II of Spain
  6. 1655

    The court of Northampton County, Virginia, issued a ruling that made John Casor the first person of African descent in the Thirteen Colonies to be declared a slave for life as a result of a civil suit.

    North America · Northampton County, VirginiaWikipedia: Northampton County, Virginia
  7. 1658

    Treaty of Roskilde: After a devastating defeat in the Northern Wars (1655–1661), Frederick III, the King of Denmark–Norway is forced to give up nearly half his territory to Sweden.

    Europe · RoskildeWikipedia: Treaty of Roskilde
  8. 1702

    Queen Anne, the younger sister of Mary II, becomes Queen regnant of England, Scotland, and Ireland.

  9. 1722

    The Safavid Empire of Iran is defeated by an army from Afghanistan at the Battle of Gulnabad.

    Asia · JilanabadWikipedia: Battle of Gulnabad
  10. 1736

    Nader Shah, founder of the Afsharid dynasty, is crowned Shah of Iran.

    no place on the mapWikipedia: Nader Shah
  11. 1775

    An anonymous writer, thought by some to be Thomas Paine, publishes "African Slavery in America", the first article in the American colonies calling for the emancipation of slaves and the abolition of slavery.

    no place on the mapWikipedia: Thomas Paine
  12. 1782

    Gnadenhutten massacre: Ninety-six Native Americans in Gnadenhutten, Ohio, who had converted to Christianity, are killed by Pennsylvania militiamen in retaliation for raids carried out by other Indian tribes.

    North America · Gnadenhutten massacreWikipedia: Gnadenhutten massacre
  13. 1801

    War of the Second Coalition: At the Battle of Abukir, a British force under Sir Ralph Abercromby lands in Egypt with the aim of ending the French campaign in Egypt and Syria.

    Africa · Battle of AbukirWikipedia: Battle of Abukir
  14. 1844

    King Oscar I ascends to the thrones of Sweden and Norway.

    Europe · Union between Sweden and NorwayWikipedia: Oscar I of Sweden
  15. 1844

    The Althing, the parliament of Iceland, is reopened after 45 years of closure.

    Europe · AlthingWikipedia: Althing
  16. 1868

    Sakai incident: Japanese samurai kill 11 French sailors in the port of Sakai, Osaka.

    Asia · Sakai incidentWikipedia: Sakai incident
  17. 1910

    French aviatrix Raymonde de Laroche becomes the first woman to receive a pilot's license.

    no place on the mapWikipedia: Aircraft pilot
  18. 1916

    World War I: A British force unsuccessfully attempts to relieve the siege of Kut (present-day Iraq) in the Battle of Dujaila.

    Asia · Battle of DujailaWikipedia: World War I
  19. 1917

    International Women's Day protests in Petrograd mark the beginning of the February Revolution (February 23 in the Julian calendar).

    Europe · Saint PetersburgWikipedia: February Revolution
  20. 1917

    The United States Senate votes to limit filibusters by adopting the cloture rule.

  21. 1919

    During the Egyptian Revolution, British authorities arrested rebel leader Saad Zaghloul and exiled him to Malta.

  22. 1921

    Spanish Prime Minister Eduardo Dato Iradier is assassinated while on his way home from the parliament building in Madrid.

    Europe · MadridWikipedia: Eduardo Dato
  23. 1924

    A mine disaster kills 172 coal miners near Castle Gate, Utah.

    North America · Castle Gate Mine disasterWikipedia: Castle Gate Mine disaster
  24. 1936

    Daytona Beach and Road Course holds its first oval stock car race.

    North America · Daytona Beach and Road CourseWikipedia: Daytona Beach and Road Course
  25. 1937

    Spanish Civil War: The Battle of Guadalajara begins.

    Europe · Battle of GuadalajaraWikipedia: Battle of Guadalajara
  26. 1942

    World War II: Imperial Japanese Army forces capture Rangoon, Burma from the British.

    Asia · YangonWikipedia: Yangon
  27. 1942

    World War II: The Dutch East Indies surrender Java to the Imperial Japanese Army.

    no place on the mapWikipedia: World War II
  28. 1949

    President of France Vincent Auriol and ex-Vietnamese emperor Bảo Đại sign the Élysée Accords, giving Vietnam greater independence from France and creating the State of Vietnam to oppose Viet Minh-led Democratic Republic of Vietnam.

    Europe · Élysée PalaceWikipedia: Élysée Accords
  29. 1950

    The iconic Volkswagen Type 2 "Bus" begins production.

    no place on the mapWikipedia: Volkswagen Type 2
  30. 1962

    A Turkish Airlines Fokker F27 Friendship crashes into Mount Medetsiz in the Taurus Mountains of Turkey, killing all 11 people on board.

    Asia · 1962 Taurus Mountains Turkish Airlines F-27 crashWikipedia: 1962 Taurus Mountains Turkish Airlines F-27 crash
  31. 1963

    The Ba'ath Party comes to power in Syria in a coup d'état.

    Asia · Second Syrian RepublicWikipedia: 1963 Syrian coup d'état
  32. 1965

    Aeroflot Flight 513 crashes during takeoff from Kuybyshev Airport, killing 30 and injuring 9.

    Europe · Aeroflot Flight 513Wikipedia: Aeroflot Flight 513
  33. 1965

    Vietnam War: US Marines arrive at Da Nang.

    Asia · Da NangWikipedia: Vietnam War
  34. 1966

    Nelson's Pillar in Dublin, Ireland, is destroyed by a bomb.

    Britain & Ireland · Nelson's PillarWikipedia: Nelson's Pillar
  35. 1978

    BBC Radio 4 began broadcasting Douglas Adams's The Hitchhiker's Guide to the Galaxy, a science fiction radio series that was later adapted into novels, a television series, and other formats.

    no place on the mapWikipedia: BBC Radio 4
  36. 1979

    Images taken by Voyager 1 prove the existence of volcanoes on Io, a moon of Jupiter.

    no place on the mapWikipedia: Voyager 1
  37. 1979

    Philips demonstrates the compact disc publicly for the first time.

    no place on the mapWikipedia: Philips
  38. 1983

    Cold War: While addressing a convention of Evangelicals, U.S. President Ronald Reagan labels the Soviet Union an "evil empire".

    no place on the mapWikipedia: Cold War
  39. 1985

    A supposed failed assassination attempt on Islamic cleric Sayyed Mohammad Hussein Fadlallah in Beirut, Lebanon kills 80 and injures 200 others.

    Asia · 1985 Beirut car bombingsWikipedia: 1985 Beirut car bombings
  40. 1988

    Aeroflot Flight 3379 is hijacked by the Ovechkin family and diverted to Veshchevo in the Soviet Union.

    Europe · VeshchevoWikipedia: Aeroflot Flight 3739
  41. 1994

    A collision at Indira Gandhi International Airport kills 9 people.

    Asia · 1994 Indira Gandhi Airport collisionWikipedia: 1994 Indira Gandhi Airport collision
  42. 2001

    Space Shuttle Discovery launches on STS-102, carrying the Expedition 2 crew to the International Space Station.

  43. 2004

    A new constitution is signed by Iraq's Governing Council.

    Asia · IraqWikipedia: Transitional Administrative Law
  44. 2010

    Headlined by Hulk Hogan and Ric Flair, TNA Wrestling moves its flagship program, TNA Impact!, to Monday night. This effort to go "big time live" failed but is notable in the history of professional wrestling television.

    no place on the mapWikipedia: Hulk Hogan
  45. 2014

    In one of aviation's greatest mysteries, Malaysia Airlines Flight 370, carrying a total of 239 people, disappears en route from Kuala Lumpur to Beijing. The fate of the flight remains unknown.

    Asia · Kuala LumpurWikipedia: Malaysia Airlines Flight 370
  46. 2017

    The Azure Window, a natural arch on the Maltese island of Gozo, collapses in stormy weather.

    Europe · Azure WindowWikipedia: Azure Window
  47. 2018

    The first Aurat March (social/political demonstration) is held on International Women's Day in Karachi, Pakistan, since then held annually across Pakistan, and the feminist slogan "Mera Jism Meri Marzi" (My body, my choice), in demand for women's right to bodily autonomy and against gender-based violence, came into vogue in Pakistan.

    Asia · KarachiWikipedia: Aurat March
  48. 2021

    International Women's Day marches in Mexico become violent with 62 police officers and 19 civilians injured in Mexico City alone.

    Latin America · Mexico CityWikipedia: 2021 in Mexico
  49. 2021

    Twenty-eight political institutions in Myanmar establish the National Unity Consultative Council, a historic alliance of ethnic armed organizations and democratically elected leaders, in response to the 2021 Myanmar coup d'état.

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 Chinese and Romanian and were translated for this page.

  1. 1817

    The New York Stock Exchange is founded in New York when the New York traders' association drafts its constitution on the basis of the Buttonwood Agreement.

    North America · New York CityTranslated from the list on Wikipedia in ChineseWikipedia: 纽约证券交易所
  2. 1968

    In Prague, Czechoslovak students declare their support for the liberalisation movement known as the Prague Spring.

    Europe · PragueTranslated from the list on Wikipedia in RomanianWikipedia: Primăvara de la Praga

Who was born on 8 March

In order of how many Wikipedia editions have an article about each. The first 60 of 143 are shown.

  1. 1879

    Otto Hahn, German chemist and academic, Nobel Prize laureate (died 1968)

    FrankfurtWikipedia: Otto Hahn
  2. 1714

    Carl Philipp Emanuel Bach, German pianist and composer (died 1788)

  3. 1990

    Petra Kvitová, Czech tennis player

    BílovecWikipedia: Petra Kvitová
  4. 1922

    Cyd Charisse, American actress and dancer (died 2008)

    AmarilloWikipedia: Cyd Charisse
  5. 1937

    Juvénal Habyarimana, Rwandan politician, President of Rwanda (died 1994)

    Gisenyi ProvinceWikipedia: Juvénal Habyarimana
  6. 1886

    Edward Calvin Kendall, American chemist and academic, Nobel Prize laureate (died 1972)

    South NorwalkWikipedia: Edward Calvin Kendall
  7. 1977

    James Van Der Beek, American actor (died 2026)

    CheshireWikipedia: James Van Der Beek
  8. 1822

    Ignacy Łukasiewicz, Polish inventor and businessman, invented the Kerosene lamp (died 1882)

    Zaduszniki, Podkarpackie VoivodeshipWikipedia: Ignacy Łukasiewicz
  9. 1859

    Kenneth Grahame, British author (died 1932)

    EdinburghWikipedia: Kenneth Grahame
  10. 1907

    Konstantinos Karamanlis, Greek lawyer and politician, President of Greece (died 1998)

  11. 1914

    Yakov Borisovich Zel'dovich, Belarusian-Russian physicist and astronomer (died 1987)

    MinskWikipedia: Yakov Zeldovich
  12. 1910

    Claire Trevor, American actress (died 2000)

    BensonhurstWikipedia: Claire Trevor
  13. 1945

    Anselm Kiefer, German painter and sculptor

    DonaueschingenWikipedia: Anselm Kiefer
  14. 1943

    Lynn Redgrave, English-American actress and singer (died 2010)

    MaryleboneWikipedia: Lynn Redgrave
  15. 1949

    Teofilo Cubillas, Peruvian footballer

    LimaWikipedia: Teófilo Cubillas
  16. 1976

    Freddie Prinze Jr., American actor, producer, and screenwriter

    Los AngelesWikipedia: Freddie Prinze Jr.
  17. 1990

    Asier Illarramendi, Spanish footballer

    MutrikuWikipedia: Asier Illarramendi
  18. 1841

    Oliver Wendell Holmes Jr., American lawyer and jurist (died 1935)

  19. 1922

    Ralph H. Baer, German-American video game designer, created the Magnavox Odyssey (died 2014)

    RodalbenWikipedia: Ralph H. Baer
  20. 1931

    Neil Postman, American author and social critic (died 2003)

    New York CityWikipedia: Neil Postman
  21. 1924

    Anthony Caro, English sculptor and illustrator (died 2013)

    SurreyWikipedia: Anthony Caro
  22. 1748

    William V, Prince of Orange (died 1806)

    The HagueWikipedia: William V, Prince of Orange
  23. 1958

    Gary Numan, English singer-songwriter, guitarist, and producer

    HammersmithWikipedia: Gary Numan
  24. 1959

    Aidan Quinn, American actor

    ChicagoWikipedia: Aidan Quinn
  25. 2004

    Kit Connor, English actor

    PurleyWikipedia: Kit Connor
  26. 1761

    Jan Potocki, Polish ethnologist, historian, linguist, and author (died 1815)

    PykivWikipedia: Jan Potocki
  27. 1892

    Juana de Ibarbourou, Uruguayan poet and author (died 1979)

    MeloWikipedia: Juana de Ibarbourou
  28. 1926

    Francisco Rabal, Spanish actor, director, and screenwriter (died 2001)

    ÁguilasWikipedia: Francisco Rabal
  29. 1988

    Benny Blanco, American record producer

    Grand PrairieWikipedia: Benny Blanco
  30. 1939

    Lidiya Skoblikova, Russian speed skater and coach

    ZlatoustWikipedia: Lidiya Skoblikova
  31. 1961

    Camryn Manheim, American actress

    CaldwellWikipedia: Camryn Manheim
  32. 1984

    Sasha Vujačić, Slovenian basketball player

    MariborWikipedia: Sasha Vujačić
  33. 1495

    John of God, Portuguese friar and saint (died 1550)

    Casarrubios del MonteWikipedia: John of God
  34. 1957

    Clive Burr, English rock drummer (died 2013)

    East HamWikipedia: Clive Burr
  35. 1983

    André Santos, Brazilian footballer

    São PauloWikipedia: André Santos
  36. 1997

    Tijana Bošković, Serbian volleyball player

    TrebinjeWikipedia: Tijana Bošković
  37. 1977

    Johann Vogel, Swiss footballer

    GenevaWikipedia: Johann Vogel
  38. 1947

    Michael S. Hart, American author, founded Project Gutenberg (died 2011)

    TacomaWikipedia: Michael S. Hart
  39. 1956

    Laurie Cunningham, English footballer (died 1989)

    Archway districtWikipedia: Laurie Cunningham
  40. 1942

    Ann Packer, English sprinter, hurdler, and long jumper

    MoulsfordWikipedia: Ann Packer
  41. 1973

    Boris Kodjoe, Austrian-German actor

    ViennaWikipedia: Boris Kodjoe
  42. 1978

    Nick Zano, American actor

    NutleyWikipedia: Nick Zano
  43. 1982

    Kat Von D, American tattoo artist and model

    Montemorelos MunicipalityWikipedia: Kat Von D
  44. 1985

    Maria Ohisalo, Finnish politician and researcher

    HelsinkiWikipedia: Maria Ohisalo
  45. 1948

    Jonathan Sacks, English rabbi, philosopher, and scholar (died 2020)

  46. 1956

    David Malpass, American economist and government official

    PetoskeyWikipedia: David Malpass
  47. 1979

    Tom Chaplin, English singer-songwriter and musician

    HastingsWikipedia: Tom Chaplin
  48. 1945

    Micky Dolenz, American singer-songwriter and actor

    Los AngelesWikipedia: Micky Dolenz
  49. 1986

    Chad Gable, American wrestler

    MinneapolisWikipedia: Chad Gable
  50. 1726

    Richard Howe, 1st Earl Howe, English admiral and politician, Treasurer of the Navy (died 1799)

    LondonWikipedia: Richard Howe, Earl Howe
  51. 1930

    Douglas Hurd, English politician

    MarlboroughWikipedia: Douglas Hurd
  52. 1946

    Randy Meisner, American singer-songwriter and bass player (died 2023)

    ScottsbluffWikipedia: Randy Meisner
  53. 1948

    Peggy March, American singer-songwriter

    LansdaleWikipedia: Peggy March
  54. 1970

    Andrea Parker, American actress

    Monterey CountyWikipedia: Andrea Parker
  55. 2003

    Montana Jordan, American actor

    LongviewWikipedia: Montana Jordan
  56. 1922

    Shigeru Mizuki, Japanese author and illustrator (died 2015)

    KohamaWikipedia: Shigeru Mizuki
  57. 1954

    David Wilkie, Sri Lankan-Scottish swimmer (died 2024)

    ColomboWikipedia: David Wilkie
  58. 1804

    Alvan Clark, American astronomer and telescope maker (died 1887)

    AshfieldWikipedia: Alvan Clark
  59. 1902

    Louise Beavers, American actress and singer (died 1962)

    CincinnatiWikipedia: Louise Beavers
  60. 1911

    Alan Hovhaness, Armenian-American pianist and composer (died 2000)

    SomervilleWikipedia: Alan Hovhaness

What is celebrated on 8 March

  • Christian feast day: Edward King (Church of England)
  • Christian feast day: Felix of Burgundy
  • Christian feast day: John of God
  • Christian feast day: Philemon the actor
  • Christian feast day: March 8 (Eastern Orthodox liturgics)
  • International Women's Day, and its related observances: International Women's Collaboration Brew Day

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