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

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

    For 8 October, the English Wikipedia lists 50 events and 244 births. 28 of the events stand at their places as rays of light; one more is a dashed circle, 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 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 8 October the Sun passes straight overhead at noon along the parallel of 5.8° south. In London, the day lasts about 11 hours 10 minutes.

    Beyond 84° south the Sun no longer sets; beyond 84° 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 October

    Europe#

    13 events from the day’s list are placed here, between 316 and 2001.

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

  4. Europe · Ried

    1813

    The Treaty of Ried is signed between Bavaria and Austria.

    On the map: Ried.

    Wikipedia: Treaty of Ried

  5. Europe · Brioni Agreement

    1991

    Upon the expiration of the Brioni Agreement, Croatia and Slovenia sever all official relations with Yugoslavia.

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

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

    Wikipedia: Brioni Agreement

  6. Europe · Oslo

    1998

    A new airport for Oslo, Norway, opened at Gardermoen, replacing a smaller one at the same location that had served as a backup to the city's previous main airport at Fornebu.

    On the map: Oslo.

    Wikipedia: Oslo Airport, Gardermoen

  7. 8 October

    Asia#

    Seven events from the day’s list are placed here, between 451 and 2020.

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

  8. Asia · Council of Chalcedon

    451

    The first session of the Council of Chalcedon begins.

    On the map: the coordinates Wikidata gives for the article “Council of Chalcedon”.

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

    Wikipedia: Council of Chalcedon

  9. 8 October

    North America#

    Five events from the day’s list are placed here, between 1645 and 2016.

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

  10. North America · Montreal

    1645

    Jeanne Mance opens the first lay hospital of North America in Montreal.

    On the map: Montreal.

    Wikipedia: Jeanne Mance

  11. North America · KDKA

    1921

    KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.

    On the map: KDKA.

    Wikipedia: KDKA

  12. 8 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 Chinese and were translated for this page.

  13. From Wikipedia in Chinese · Oslo

    2010

    The Chinese dissident Liu Xiaobo, drafter of Charter 08, is awarded the Nobel Peace Prize. Liu Xiaobo is the second Chinese Nobel Peace Prize laureate after the Dalai Lama, and the first Nobel laureate born in the People's Republic of China.

    On the map: Oslo.

    Translated from the list on Wikipedia in Chinese.

    The article on Wikipedia in Chinese: 2010年诺贝尔和平奖

  14. 8 October

    Born on 8 October#

    The English Wikipedia lists 244 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.

  15. Born on 8 October

    1949

    Sigourney Weaver, American actress and producer

    Place of birth: Manhattan.

    Wikipedia: Sigourney Weaver

  16. Born on 8 October

    1970

    Matt Damon, American actor, producer, and screenwriter

    Place of birth: Cambridge.

    Wikipedia: Matt Damon

  17. Born on 8 October

    1985

    Bruno Mars, American singer-songwriter, producer, and actor

    Place of birth: Honolulu.

    Wikipedia: Bruno Mars

  18. Born on 8 October

    1892

    Marina Tsvetaeva, Russian poet and author (died 1941)

    Place of birth: Moscow.

    Wikipedia: Marina Tsvetaeva

  19. Born on 8 October

    1920

    Frank Herbert, American journalist, photographer, and author (died 1986)

    Place of birth: Tacoma.

    Wikipedia: Frank Herbert

  20. Born in Britain and Ireland

    1917

    Rodney Robert Porter, English biochemist and physiologist, Nobel Prize laureate (died 1985)

    Place of birth: Newton-le-Willows.

    Wikipedia: Rodney Porter

  21. Born in Britain and Ireland

    1807

    Harriet Taylor Mill, English philosopher and activist (died 1858)

    Place of birth: London.

    Wikipedia: Harriet Taylor Mill

  22. Born in Britain and Ireland

    1789

    William Swainson, English-New Zealand ornithologist and entomologist (died 1855)

    Place of birth: London.

    Wikipedia: William Swainson

  23. 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 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. 316

    Constantine I defeats Licinius, who loses his European territories.

    Europe · Battle of CibalaeWikipedia: Battle of Cibalae
  2. 451

    The first session of the Council of Chalcedon begins.

    Asia · Council of ChalcedonWikipedia: Council of Chalcedon
  3. 876

    Frankish forces led by Louis the Younger prevent a West Frankish invasion and defeat emperor Charles II ("the Bald").

    Europe · Battle of AndernachWikipedia: Battle of Andernach
  4. 1075

    Dmitar Zvonimir is crowned King of Croatia.

  5. 1200

    Isabella of Angoulême is crowned Queen consort of England.

  6. 1322

    Mladen II Šubić of Bribir is deposed as the Croatian Ban after the Battle of Bliska.

    Europe · TrogirWikipedia: Battle of Bliska
  7. 1480

    The Great Stand on the Ugra River puts an end to Tatar rule over Moscow.

    Europe · Great Stand on the Ugra RiverWikipedia: Great Stand on the Ugra River
  8. 1573

    The Spanish siege of Alkmaar ends with the first Dutch victory in the Eighty Years' War.

    Europe · Siege of AlkmaarWikipedia: Siege of Alkmaar
  9. 1645

    Jeanne Mance opens the first lay hospital of North America in Montreal.

    North America · MontrealWikipedia: Jeanne Mance
  10. 1813

    The Treaty of Ried is signed between Bavaria and Austria.

    Europe · RiedWikipedia: Treaty of Ried
  11. 1821

    The Peruvian Navy is established during the War of Independence.

    no place on the mapWikipedia: Peruvian Navy
  12. 1829

    Stephenson's Rocket wins the Rainhill Trials.

    Britain & Ireland · Rainhill trialsWikipedia: Rainhill trials
  13. 1856

    The Second Opium War between several western powers and China begins with the Arrow Incident.

    Asia · Qing dynastyWikipedia: Second Opium War
  14. 1862

    American Civil War: The Confederate invasion of Kentucky is halted at the Battle of Perryville.

    North America · Battle of PerryvilleWikipedia: American Civil War
  15. 1871

    Slash-and-burn land management, months of drought, and the passage of a strong cold front cause the Peshtigo Fire, the Great Chicago Fire and the Great Michigan Fires to break out.

    North America · Great Chicago FireWikipedia: Peshtigo fire
  16. 1879

    War of the Pacific: The Chilean Navy defeats the Peruvian Navy in the Battle of Angamos.

    Latin America · Battle of AngamosWikipedia: Battle of Angamos
  17. 1895

    Korean Empress Myeongseong is assassinated by Japanese infiltrators.

  18. 1912

    The First Balkan War begins when Montenegro declares war against the Ottoman Empire.

    no place on the mapWikipedia: First Balkan War
  19. 1918

    World War I: Corporal Alvin C. York kills 28 German soldiers and captures 132, for which he was awarded the Medal of Honor.

    no place on the mapWikipedia: World War I
  20. 1921

    KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.

    North America · KDKAWikipedia: KDKA
  21. 1932

    The Indian Air Force was founded as an auxiliary air force of the British Royal Air Force.

    no place on the mapWikipedia: Indian Air Force
  22. 1939

    World War II: Germany annexes western Poland.

    no place on the mapWikipedia: World War II
  23. 1941

    World War II: During the preliminaries of the Battle of Rostov, German forces reach the Sea of Azov with the capture of Mariupol.

    Europe · Rostov-on-DonWikipedia: Battle of Rostov
  24. 1943

    World War II: Around 30 civilians are executed by Friedrich Schubert's paramilitary group in Kallikratis, Crete.

    Europe · Kallikratis executionsWikipedia: Kallikratis executions
  25. 1944

    World War II: Captain Bobbie E. Brown earns a Medal of Honor for his actions during the Battle of Crucifix Hill, just outside Aachen.

    Europe · Battle of Crucifix HillWikipedia: Battle of Crucifix Hill
  26. 1952

    The Harrow and Wealdstone rail crash in England kills 112 people.

    Britain & Ireland · Harrow and Wealdstone rail crashWikipedia: Harrow and Wealdstone rail crash
  27. 1956

    The New York Yankees's Don Larsen pitches the only perfect game in a World Series.

    no place on the mapWikipedia: Don Larsen
  28. 1962

    Der Spiegel publishes an article disclosing the sorry state of the Bundeswehr, leading to accusations of treason.

    no place on the mapWikipedia: Spiegel affair
  29. 1967

    Guerrilla leader Che Guevara and his men are captured in Bolivia. Guevara would be executed the next day.

    no place on the mapWikipedia: Che Guevara
  30. 1969

    The opening rally of the Days of Rage occurs, organized by the Weather Underground in Chicago.

    no place on the mapWikipedia: Days of Rage
  31. 1970

    Aleksandr Solzhenitsyn wins the Nobel Prize in literature.

  32. 1973

    Spyros Markezinis begins his 48-day term as prime minister in an abortive attempt to lead Greece to parliamentary rule.

    no place on the mapWikipedia: Spyros Markezinis
  33. 1973

    Yom Kippur War: Israel loses more than 150 tanks in a failed attack on Egyptian-occupied positions.

    no place on the mapWikipedia: Yom Kippur War
  34. 1974

    Franklin National Bank collapses due to fraud and mismanagement; at the time it is the largest bank failure in the history of the United States.

  35. 1978

    Australia's Ken Warby sets the current world water speed record of 275.97 knots at Blowering Dam, Australia.

    no place on the mapWikipedia: Ken Warby
  36. 1982

    Poland bans Solidarity and all other trade unions.

    no place on the mapWikipedia: Solidarity
  37. 1986

    An explosion occurs at the Cipel-Marco fur factory in Kwai Chung, Hong Kong, killing 14 and injuring 10.

    Asia · Kwai ChungWikipedia: 1986 Cipel-Marco fur factory explosion
  38. 1990

    First Intifada: Israeli police kill 17 Palestinians and wound over 100 near the Dome of the Rock.

    no place on the mapWikipedia: First Intifada
  39. 1991

    Upon the expiration of the Brioni Agreement, Croatia and Slovenia sever all official relations with Yugoslavia.

    Europe · Brioni AgreementWikipedia: Brioni Agreement
  40. 1995

    The Croatian Army and Croatian Defence Council launched Operation Southern Move, their last offensive in the Bosnian War.

    Europe · Operation Southern MoveWikipedia: Croatian Army
  41. 1998

    A new airport for Oslo, Norway, opened at Gardermoen, replacing a smaller one at the same location that had served as a backup to the city's previous main airport at Fornebu.

    Europe · OsloWikipedia: Oslo Airport, Gardermoen
  42. 2001

    A twin engine Cessna and a Scandinavian Airlines System jetliner collide in heavy fog during takeoff from Milan, Italy, killing 118 people.

    Europe · 2001 Linate Airport runway collisionWikipedia: 2001 Linate Airport runway collision
  43. 2001

    U.S. president George W. Bush announces the establishment of the Office of Homeland Security.

  44. 2005

    The 7.6 Mw Kashmir earthquake leaves 86,000–87,351 people dead, 69,000–75,266 injured, and 2.8 million homeless.

    Asia · 2005 Kashmir earthquakeWikipedia: 2005 Kashmir earthquake
  45. 2014

    Thomas Eric Duncan, the first person in the United States to be diagnosed with Ebola, dies.

  46. 2016

    In the wake of Hurricane Matthew, the death toll rises to nearly 900.

    North America · Hurricane MatthewWikipedia: Hurricane Matthew
  47. 2016

    Yemen War: A funeral in Sanaa was hit by two consecutive airstrikes by a Saudi-led coalition, leaving 143–155 civilians dead and more than 525 injured.

    Asia · Sanaa funeral airstrikeWikipedia: Sanaa funeral airstrike
  48. 2019

    About 200 Extinction Rebellion activists block the gates of Leinster House (parliament) in the Republic of Ireland.

    Britain & Ireland · Leinster HouseWikipedia: Extinction Rebellion
  49. 2019

    Anti-government protests calling for free and fair elections began in Baku, Azerbaijan.

    Asia · BakuWikipedia: 2019 Baku protests
  50. 2020

    Second Nagorno-Karabakh War: Azerbaijan twice deliberately targets the Church of the Holy Savior Ghazanchetsots of Shusha.

    Asia · Armenia–Azerbaijan borderWikipedia: Second Nagorno-Karabakh War

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 were translated for this page.

  1. 2010

    The Chinese dissident Liu Xiaobo, drafter of Charter 08, is awarded the Nobel Peace Prize. Liu Xiaobo is the second Chinese Nobel Peace Prize laureate after the Dalai Lama, and the first Nobel laureate born in the People's Republic of China.

    Europe · OsloTranslated from the list on Wikipedia in ChineseWikipedia: 2010年诺贝尔和平奖

Who was born on 8 October

In order of how many Wikipedia editions have an article about each. The first 60 of 244 are shown.

  1. 1949

    Sigourney Weaver, American actress and producer

    ManhattanWikipedia: Sigourney Weaver
  2. 1958

    Ursula von der Leyen, Belgian-German physician and politician, Defense Minister of Germany, President of the European Commission

  3. 1970

    Matt Damon, American actor, producer, and screenwriter

    CambridgeWikipedia: Matt Damon
  4. 1985

    Bruno Mars, American singer-songwriter, producer, and actor

    HonoluluWikipedia: Bruno Mars
  5. 1892

    Marina Tsvetaeva, Russian poet and author (died 1941)

    MoscowWikipedia: Marina Tsvetaeva
  6. 1895

    Juan Perón, Argentinian general and politician, 29th President of Argentina (died 1974)

    LobosWikipedia: Juan Perón
  7. 1920

    Frank Herbert, American journalist, photographer, and author (died 1986)

    TacomaWikipedia: Frank Herbert
  8. 1970

    Sadiq Khan, English lawyer and politician, Minister of State for Transport, Mayor of London

    St George's HospitalWikipedia: Sadiq Khan
  9. 319 BC

    Pyrrhus of Epirus (died 272 BC)

  10. 1997

    Bella Thorne, American actress

    Pembroke PinesWikipedia: Bella Thorne
  11. 1941

    Jesse Jackson, American minister and activist (died 2026)

    GreenvilleWikipedia: Jesse Jackson
  12. 1883

    Otto Heinrich Warburg, German physiologist and physician, Nobel Prize laureate (died 1970)

    Freiburg im BreisgauWikipedia: Otto Heinrich Warburg
  13. 1895

    Zog I of Albania (died 1961)

    BurgajetWikipedia: Zog I
  14. 1993

    Garbiñe Muguruza, Spanish tennis player

    GuatireWikipedia: Garbiñe Muguruza
  15. 1918

    Jens Christian Skou, Danish chemist and physiologist, Nobel Prize laureate (died 2018)

    LemvigWikipedia: Jens Christian Skou
  16. 1927

    César Milstein, Argentinian-English biochemist and academic, Nobel Prize laureate (died 2002)

    Bahía BlancaWikipedia: César Milstein
  17. 1948

    Claude Jade, French actress (died 2006)

    DijonWikipedia: Claude Jade
  18. 1850

    Henry Louis Le Châtelier, French chemist and academic (died 1936)

  19. 1943

    Chevy Chase, American comedian, actor, and screenwriter

    Lower ManhattanWikipedia: Chevy Chase
  20. 1943

    R. L. Stine, American author, screenwriter, and producer

    ColumbusWikipedia: R. L. Stine
  21. 1917

    Rodney Robert Porter, English biochemist and physiologist, Nobel Prize laureate (died 1985)

    Newton-le-WillowsWikipedia: Rodney Porter
  22. 1919

    Kiichi Miyazawa, Japanese politician, 78th Prime Minister of Japan (died 2007)

    TokyoWikipedia: Kiichi Miyazawa
  23. 1928

    Didi, Brazilian footballer and manager (died 2001)

    Campos dos GoytacazesWikipedia: Didi
  24. 1585

    Heinrich Schütz, German organist and composer (died 1672)

    Bad KöstritzWikipedia: Heinrich Schütz
  25. 1873

    Ejnar Hertzsprung, Danish chemist and astronomer (died 1967)

    FrederiksbergWikipedia: Ejnar Hertzsprung
  26. 1968

    Zvonimir Boban, Croatian footballer and sportscaster

    ImotskiWikipedia: Zvonimir Boban
  27. 1979

    Kristanna Loken, American actress

    GhentWikipedia: Kristanna Loken
  28. 1884

    Walther von Reichenau, German field marshal (died 1942)

    KarlsruheWikipedia: Walter von Reichenau
  29. 1939

    Paul Hogan, Australian actor, producer, and screenwriter

    SydneyWikipedia: Paul Hogan
  30. 1957

    Antonio Cabrini, Italian footballer and manager

    CremonaWikipedia: Antonio Cabrini
  31. 1922

    Nils Liedholm, Swedish footballer, coach, and manager (died 2007)

    ValdemarsvikWikipedia: Nils Liedholm
  32. 1897

    Rouben Mamoulian, Georgian-American director and screenwriter (died 1987)

    TbilisiWikipedia: Rouben Mamoulian
  33. 1980

    The Miz, American wrestler, actor, and television personality

    ParmaWikipedia: The Miz
  34. 1946

    Dennis Kucinich, American journalist and politician, 53rd Mayor of Cleveland

    ClevelandWikipedia: Dennis Kucinich
  35. 1952

    Edward Zwick, American director, producer, and screenwriter

    ChicagoWikipedia: Edward Zwick
  36. 1807

    Harriet Taylor Mill, English philosopher and activist (died 1858)

    LondonWikipedia: Harriet Taylor Mill
  37. 1930

    Toru Takemitsu, Japanese composer and theorist (died 1996)

    Tokyo CityWikipedia: Tōru Takemitsu
  38. 1946

    Hanan Ashrawi, Palestinian scholar, activist, and politician

    NablusWikipedia: Hanan Ashrawi
  39. 2002

    Zheng Qinwen, Chinese tennis player

    ShiyanWikipedia: Zheng Qinwen
  40. 1551

    Giulio Caccini, Italian composer (died 1618)

    RomeWikipedia: Giulio Caccini
  41. 1896

    Julien Duvivier, French director, producer, and screenwriter (died 1967)

    LilleWikipedia: Julien Duvivier
  42. 1968

    Emily Procter, American actress

    RaleighWikipedia: Emily Procter
  43. 1993

    Molly Quinn, American actress and producer

    TexarkanaWikipedia: Molly C. Quinn
  44. 1948

    Johnny Ramone, American guitarist and songwriter (died 2004)

    Long IslandWikipedia: Johnny Ramone
  45. 1993

    Angus T. Jones, American actor

    AustinWikipedia: Angus T. Jones
  46. 1974

    Koji Murofushi, Japanese hammer thrower

    NumazuWikipedia: Koji Murofushi
  47. 1870

    Louis Vierne, French organist and composer (died 1937)

    PoitiersWikipedia: Louis Vierne
  48. 1890

    Philippe Thys, Belgian cyclist (died 1971)

    AnderlechtWikipedia: Philippe Thys
  49. 1980

    Nick Cannon, American actor, rapper, and producer

    San DiegoWikipedia: Nick Cannon
  50. 1982

    Annemiek van Vleuten, Dutch cyclist

    VleutenWikipedia: Annemiek van Vleuten
  51. 1789

    William Swainson, English-New Zealand ornithologist and entomologist (died 1855)

    LondonWikipedia: William Swainson
  52. 1890

    Eddie Rickenbacker, American soldier and pilot, Medal of Honor recipient (died 1973)

    ColumbusWikipedia: Eddie Rickenbacker
  53. 1932

    Ray Reardon, Welsh snooker player and police officer (died 2024)

    TredegarWikipedia: Ray Reardon
  54. 1954

    Michael Dudikoff, American actor

    Redondo BeachWikipedia: Michael Dudikoff
  55. 1965

    Matt Biondi, American swimmer and coach

    MoragaWikipedia: Matt Biondi
  56. 1901

    Mark Oliphant, Australian physicist, humanitarian and politician, Governor of South Australia (died 2000)

    AdelaideWikipedia: Mark Oliphant
  57. 1956

    Janice E. Voss, American engineer and astronaut (died 2012)

    South BendWikipedia: Janice E. Voss
  58. 1996

    Sara Takanashi, Japanese ski jumper

    KamikawaWikipedia: Sara Takanashi
  59. 1873

    Alexey Shchusev, Russian architect and academic, designed Lenin's Mausoleum (died 1949)

    ChișinăuWikipedia: Alexei Shchusev
  60. 1938

    Fred Stolle, Australian-American tennis player and sportscaster (died 2025)

    HornsbyWikipedia: Fred Stolle

What is celebrated on 8 October

  • Christian feast day: Evodus (or Yves)
  • Christian feast day: Blessed John Adams
  • Christian feast day: Palatias and Laurentia
  • Christian feast day: Pelagia (Eastern Orthodox and Roman Catholic Churches)
  • Christian feast day: Reparata
  • Christian feast day: San Ernesto, Che Guevara as a folk saint. (Bolivian campesinos)
  • Christian feast day: Simeon (Gospel of Luke)
  • Christian feast day: Thaïs
  • Christian feast day: Ugo Canefri
  • Christian feast day: William Dwight Porter Bliss and Richard T. Ely (Episcopal Church)
  • Christian feast day: October 8 (Eastern Orthodox liturgics)
  • World Space Week (October 4–10)
  • Air Force Day (India)
  • Children's Day (Iran)

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