A day on the globeROENES中文
The Earth on 29 January, with the rays of the day’s events
  1. A birthday on the globe

    29 January on the globe: what happened in the world on this day, and who was born

    For 29 January, the English Wikipedia lists 43 events and 166 births. 25 of the events stand at their places as rays of light; nine 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 29 January

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

    On 29 January the Sun passes straight overhead at noon along the parallel of 18.0° south. In London, the day lasts about 9 hours.

    Beyond 72° south the Sun no longer sets; beyond 72° 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. 29 January

    Europe#

    Seven events from the day’s list are placed here, between 1814 and 1971.

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

  4. Europe · Cirkus

    1959

    The first Melodifestivalen is held at Cirkus in Stockholm, Sweden.

    On the map: Cirkus.

    Wikipedia: Melodifestivalen

  5. Europe · UFOs of Pudasjärvi

    1971

    The last of its many UFO sightings is made at Pudasjärvi, Finland.

    On the map: UFOs of Pudasjärvi.

    Wikipedia: UFOs of Pudasjärvi

  6. 29 January

    Africa#

    Two events from the day’s list are placed here, between 2009 and 2025.

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

  7. Africa · Supreme Constitutional Court

    2009

    The Supreme Constitutional Court of Egypt ruled that people who did not adhere to one of the three government-recognised religions were also eligible to receive government identity documents.

    On the map: Supreme Constitutional Court.

    Wikipedia: Supreme Constitutional Court

  8. 29 January

    Asia#

    11 events from the day’s list are placed here, between 946 and 2020.

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

  9. Asia · Guangzhou

    2005

    The first direct commercial flights from mainland China (from Guangzhou) to Taiwan since 1949 arrived in Taipei. Shortly afterwards, a China Airlines flight lands in Beijing.

    On the map: Guangzhou.

    Wikipedia: Mainland China

  10. 29 January

    North America#

    12 events from the day’s list are placed here, between 1850 and 2025.

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

  11. North America · United States Congress

    1850

    Henry Clay introduces the Compromise of 1850 to the U.S. Congress.

    On the map: United States Congress.

    Wikipedia: Compromise of 1850

  12. North America · National Baseball Hall of Fame and Museum

    1936

    The first inductees into the Baseball Hall of Fame are announced.

    On the map: National Baseball Hall of Fame and Museum.

    Wikipedia: National Baseball Hall of Fame and Museum

  13. 29 January

    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 · 1964 Winter Olympics

    1964

    The 9th Winter Olympic Games are held in Innsbruck, Austria.

    On the map: 1964 Winter Olympics.

    Translated from the list on Wikipedia in Chinese.

    The article on Wikipedia in Chinese: 1964年冬季奥林匹克运动会

  15. From Wikipedia in Romanian · Australian Open

    2012

    Horia Tecău wins the mixed doubles final at the Australian Open.

    On the map: Australian Open.

    Translated from the list on Wikipedia in Romanian.

    The article on Wikipedia in Romanian: Australian Open

  16. 29 January

    Born on 29 January#

    The English Wikipedia lists 166 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 29 January

    1860

    Anton Chekhov, Russian playwright and short story writer (died 1904)

    Place of birth: Taganrog.

    Wikipedia: Anton Chekhov

  18. Born on 29 January

    1866

    Romain Rolland, French historian, author, and playwright, Nobel Prize laureate (died 1944)

    Place of birth: Clamecy.

    Wikipedia: Romain Rolland

  19. Born on 29 January

    1954

    Oprah Winfrey, American talk show host, actress, and producer, founded Harpo Productions

    Place of birth: Kosciusko.

    Wikipedia: Oprah Winfrey

  20. Born on 29 January

    1688

    Emanuel Swedenborg, Swedish astronomer, philosopher, and theologian (died 1772)

    Place of birth: Jakob and Johannes parish.

    Wikipedia: Emanuel Swedenborg

  21. Born on 29 January

    1926

    Abdus Salam, Pakistani-British physicist and academic, Nobel Prize laureate (died 1996)

    Place of birth: Jhang.

    Wikipedia: Abdus Salam

  22. Born in Britain and Ireland

    1862

    Frederick Delius, English composer (died 1934)

    Wikipedia: Frederick Delius

  23. Born in Britain and Ireland

    2003

    Jarell Quansah, English footballer

    Place of birth: Warrington.

    Wikipedia: Jarell Quansah

  24. Born in Britain and Ireland

    1985

    Rag'n'Bone Man, English singer-songwriter

    Place of birth: Eastbourne.

    Wikipedia: Rag'n'Bone Man

  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 29 January

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. Nine 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. 757

    An Lushan, leader of a revolt against the Tang dynasty and emperor of Yan, was assassinated in a plot involving his own son, An Qingxu.

  2. 904

    Sergius III is elected pope, after coming out of retirement to take over the papacy from the deposed antipope Christopher.

    no place on the mapWikipedia: Pope Sergius III
  3. 946

    Caliph al-Mustakfi is blinded and deposed by Mu'izz al-Dawla, ruler of the Buyid Empire. He is succeeded by al-Muti as caliph of the Abbasid Caliphate.

    Asia · Abbasid CaliphateWikipedia: Al-Mustakfi
  4. 1814

    War of the Sixth Coalition: France engages Russia and Prussia in the Battle of Brienne.

    Europe · Battle of BrienneWikipedia: War of the Sixth Coalition
  5. 1819

    Stamford Raffles lands on the island of Singapore.

    Asia · SingaporeWikipedia: Stamford Raffles
  6. 1845

    "The Raven" is published in The Evening Mirror in New York, the first publication with the name of the author, Edgar Allan Poe.

    no place on the mapWikipedia: The Raven
  7. 1850

    Henry Clay introduces the Compromise of 1850 to the U.S. Congress.

    North America · United States CongressWikipedia: Compromise of 1850
  8. 1856

    Queen Victoria issues a Warrant under the Royal sign-manual that establishes the Victoria Cross to recognise acts of valour by British military personnel during the Crimean War.

    Britain & Ireland · British EmpireWikipedia: Crimean War
  9. 1861

    Kansas is admitted as the 34th U.S. state.

    North America · KansasWikipedia: Kansas
  10. 1863

    The Bear River Massacre: A detachment of California Volunteers led by Colonel Patrick Edward Connor engage the Shoshone at Bear River, Washington Territory, killing hundreds of men, women and children.

    North America · Bear River MassacreWikipedia: Bear River Massacre
  11. 1886

    Karl Benz patents the first successful gasoline-driven automobile.

    no place on the mapWikipedia: Carl Benz
  12. 1891

    Liliʻuokalani is proclaimed the last monarch and only queen regnant of the Kingdom of Hawaii.

    North America · Hawaiian KingdomWikipedia: Liliʻuokalani
  13. 1907

    Charles Curtis of Kansas becomes the first Native American U.S. Senator.

    North America · KansasWikipedia: Charles Curtis
  14. 1911

    Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.

    North America · Capture of MexicaliWikipedia: Capture of Mexicali
  15. 1918

    Ukrainian–Soviet War: An armed uprising organized by the Bolsheviks in anticipation of the encroaching Red Army begins at the Kiev Arsenal, which will be put down six days later.

    Europe · KyivWikipedia: Kiev Arsenal January Uprising
  16. 1918

    Ukrainian–Soviet War: The Bolshevik Red Army, on its way to besiege Kyiv, is met by a small group of military students at the Battle of Kruty.

    Europe · Battle of KrutyWikipedia: Ukrainian–Soviet War
  17. 1936

    The first inductees into the Baseball Hall of Fame are announced.

    North America · National Baseball Hall of Fame and MuseumWikipedia: National Baseball Hall of Fame and Museum
  18. 1940

    Three trains on the Nishinari Line; present Sakurajima Line, in Osaka, Japan, collide and explode while approaching Ajikawaguchi Station. One hundred and eighty-one people are killed.

    Asia · OsakaWikipedia: Sakurajima Line
  19. 1943

    World War II: The first day of the Battle of Rennell Island, USS Chicago (CA-29) is torpedoed and heavily damaged by Japanese bombers.

    Oceania · Battle of Rennell IslandWikipedia: World War II
  20. 1944

    World War II: Approximately 38 people are killed and about a dozen injured when the Polish village of Koniuchy (present-day Kaniūkai, Lithuania) is attacked by Soviet partisan units.

    Europe · Koniuchy massacreWikipedia: Koniuchy massacre
  21. 1944

    World War II: In Bologna, Italy, the Anatomical theatre of the Archiginnasio is completely destroyed in an air-raid.

    Europe · BolognaWikipedia: Anatomical theatre of the Archiginnasio
  22. 1959

    The first Melodifestivalen is held at Cirkus in Stockholm, Sweden.

    Europe · CirkusWikipedia: Melodifestivalen
  23. 1967

    The Mantra-Rock Dance, called the "ultimate high" of the hippie era, took place in San Francisco, featuring Swami Bhaktivedanta, Janis Joplin, the Grateful Dead, and Allen Ginsberg.

    North America · Mantra-Rock DanceWikipedia: Hippie
  24. 1971

    The last of its many UFO sightings is made at Pudasjärvi, Finland.

    Europe · UFOs of PudasjärviWikipedia: UFOs of Pudasjärvi
  25. 1973

    EgyptAir Flight 741 crashes into the Kyrenia Mountains in Cyprus, killing 37 people.

    Asia · EgyptAir Flight 741Wikipedia: EgyptAir Flight 741
  26. 1983

    Singapore cable car crash: Panamanian-registered oil rig, Eniwetok, strikes the cables of the Singapore Cable Car system linking the mainland and Sentosa Island, causing two cabins to fall into the water and killing seven people and leaving thirteen others trapped for hours.

    Asia · Singapore Cable CarWikipedia: Singapore cable car crash
  27. 1989

    Cold War: Hungary establishes diplomatic relations with South Korea, making it the first Eastern Bloc nation to do so.

    no place on the mapWikipedia: Cold War
  28. 1991

    Gulf War: The Battle of Khafji, the first major ground engagement of the war, as well as its deadliest, begins between Iraq and Saudi Arabia.

    Asia · Battle of KhafjiWikipedia: Gulf War
  29. 1996

    President Jacques Chirac announces a "definitive end" to French nuclear weapons testing.

    no place on the mapWikipedia: Jacques Chirac
  30. 2001

    Thousands of student protesters in Indonesia storm parliament and demand that President Abdurrahman Wahid resign due to alleged involvement in corruption scandals.

    Asia · IndonesiaWikipedia: Indonesia
  31. 2002

    In his State of the Union address, President George W. Bush describes "regimes that sponsor terror" as an Axis of evil, in which he includes Iraq, Iran and North Korea.

    North America · 2002 State of the Union AddressWikipedia: 2002 State of the Union Address
  32. 2005

    The first direct commercial flights from mainland China (from Guangzhou) to Taiwan since 1949 arrived in Taipei. Shortly afterwards, a China Airlines flight lands in Beijing.

    Asia · GuangzhouWikipedia: Mainland China
  33. 2006

    India's Irfan Pathan became the first bowler to take a Test cricket hat-trick in the opening over of a match.

  34. 2008

    An Egyptian court rules that people who do not adhere to one of the three government-recognised religions, while not allowed to list any belief outside of those three, are still eligible to receive government identity documents.

    no place on the mapWikipedia: Religion in Egypt
  35. 2009

    Governor of Illinois Rod Blagojevich is removed from office following his conviction of several corruption charges, including solicitation of personal benefit in exchange for an appointment to the United States Senate as a replacement for then-U.S. president-elect Barack Obama.

  36. 2009

    The Supreme Constitutional Court of Egypt ruled that people who did not adhere to one of the three government-recognised religions were also eligible to receive government identity documents.

    Africa · Supreme Constitutional CourtWikipedia: Supreme Constitutional Court
  37. 2013

    SCAT Airlines Flight 760 crashes near the Kazakh city of Almaty, killing 21 people.

    Asia · SCAT Airlines Flight 760Wikipedia: SCAT Airlines Flight 760
  38. 2014

    Rojava conflict: The Afrin Canton declares its autonomy from the Syrian Arab Republic.

    Asia · SyriaWikipedia: Rojava Revolution
  39. 2017

    A gunman opens fire at the Islamic Cultural Centre of Quebec City, killing six people and wounding 19 others in a spree shooting.

    North America · Quebec City mosque shootingWikipedia: Quebec City mosque shooting
  40. 2020

    A plinth breaks between Coral Edge and Riviera in Singapore, Coral Edge closes one platform.

    Asia · SingaporeWikipedia: Pedestal
  41. 2022

    Canadian truck drivers and pedestrians gathered to rally and protest on Parliament Hill against Canadian COVID-19 restrictions, which caused traffic and closures around the city.

    North America · Parliament HillWikipedia: Parliament Hill
  42. 2025

    A chartered Beechcraft 1900 crashes near the Unity oilfield in South Sudan, killing 20 people.

    Africa · 2025 Light Air Services Beechcraft 1900 crashWikipedia: 2025 Light Air Services Beechcraft 1900 crash
  43. 2025

    American Eagle Flight 5342 collided mid-air with a Sikorsky UH-60 Black Hawk operated by the United States Army and crashed into the Potomac River, killing all 67 people on board both aircraft.

    North America · 2025 Potomac River mid-air collisionWikipedia: 2025 Potomac River mid-air collision

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. 1964

    The 9th Winter Olympic Games are held in Innsbruck, Austria.

    Europe · 1964 Winter OlympicsTranslated from the list on Wikipedia in ChineseWikipedia: 1964年冬季奥林匹克运动会
  2. 2012

    Horia Tecău wins the mixed doubles final at the Australian Open.

    Oceania · Australian OpenTranslated from the list on Wikipedia in RomanianWikipedia: Australian Open

Who was born on 29 January

In order of how many Wikipedia editions have an article about each. The first 60 of 166 are shown.

  1. 1860

    Anton Chekhov, Russian playwright and short story writer (died 1904)

    TaganrogWikipedia: Anton Chekhov
  2. 1843

    William McKinley, American soldier, lawyer, and politician, 25th President of the United States (died 1901)

    NilesWikipedia: William McKinley
  3. 1866

    Romain Rolland, French historian, author, and playwright, Nobel Prize laureate (died 1944)

    ClamecyWikipedia: Romain Rolland
  4. 1737

    Thomas Paine, English-American political activist, philosopher, political theorist, and revolutionary (died 1809)

    ThetfordWikipedia: Thomas Paine
  5. 1954

    Oprah Winfrey, American talk show host, actress, and producer, founded Harpo Productions

    KosciuskoWikipedia: Oprah Winfrey
  6. 1688

    Emanuel Swedenborg, Swedish astronomer, philosopher, and theologian (died 1772)

    Jakob and Johannes parishWikipedia: Emanuel Swedenborg
  7. 1926

    Abdus Salam, Pakistani-British physicist and academic, Nobel Prize laureate (died 1996)

    JhangWikipedia: Abdus Salam
  8. 1947

    Linda B. Buck, American biologist and academic, Nobel Prize laureate

    SeattleWikipedia: Linda B. Buck
  9. 1939

    Germaine Greer, Australian journalist and author

    MelbourneWikipedia: Germaine Greer
  10. 1953

    Teresa Teng, Taiwanese singer (died 1995)

    Baojhong TownshipWikipedia: Teresa Teng
  11. 1945

    Ibrahim Boubacar Keïta, Malian academic and politician, Prime Minister of Mali (died 2022)

    KoutialaWikipedia: Ibrahim Boubacar Keïta
  12. 1979

    Christina Koch, American engineer and astronaut

    Grand RapidsWikipedia: Christina Koch
  13. 1982

    Adam Lambert, American singer, songwriter and actor

    IndianapolisWikipedia: Adam Lambert
  14. 1867

    Vicente Blasco Ibáñez, Spanish journalist and author (died 1928)

    ValenciaWikipedia: Vicente Blasco Ibáñez
  15. 1892

    Ernst Lubitsch, German American film director, producer, writer, and actor (died 1947)

    BerlinWikipedia: Ernst Lubitsch
  16. 1970

    Paul Ryan, American politician, 62nd Speaker of the United States House of Representatives

    JanesvilleWikipedia: Paul Ryan
  17. 1970

    Heather Graham, American actress

    MilwaukeeWikipedia: Heather Graham
  18. 1749

    Christian VII of Denmark (died 1808)

    Christiansborg PalaceWikipedia: Christian VII
  19. 1945

    Tom Selleck, American actor and businessman

    DetroitWikipedia: Tom Selleck
  20. 1782

    Daniel Auber, French composer (died 1871)

    CaenWikipedia: Daniel Auber
  21. 1931

    Ferenc Mádl, Hungarian academic and politician, 2nd President of Hungary (died 2011)

    BándWikipedia: Ferenc Mádl
  22. 1455

    Johann Reuchlin, German-born humanist and scholar (died 1522)

    PforzheimWikipedia: Johann Reuchlin
  23. 1499

    Katharina von Bora, wife of Martin Luther; formerly a Roman Catholic nun (died 1552)

    LippendorfWikipedia: Katharina von Bora
  24. 1880

    W. C. Fields, American actor, comedian, and screenwriter (died 1946)

    DarbyWikipedia: W. C. Fields
  25. 1810

    Ernst Kummer, Polish-German mathematician and academic (died 1893)

    ŻaryWikipedia: Ernst Kummer
  26. 1927

    Edward Abbey, American environmentalist and author (died 1989)

    IndianaWikipedia: Edward Abbey
  27. 1940

    Katharine Ross, American actress and author

    HollywoodWikipedia: Katharine Ross
  28. 1960

    Greg Louganis, American diver and author

    San DiegoWikipedia: Greg Louganis
  29. 1985

    Marc Gasol, Spanish basketball player

    BarcelonaWikipedia: Marc Gasol
  30. 1960

    Gia Carangi, American supermodel (died 1986)

    PhiladelphiaWikipedia: Gia Carangi
  31. 1918

    John Forsythe, American actor (died 2010)

    Penns GroveWikipedia: John Forsythe
  32. 1584

    Frederick Henry, Prince of Orange (died 1647)

  33. 1888

    Wellington Koo, Chinese statesman (died 1985)

    JiadingWikipedia: Wellington Koo
  34. 1985

    Isabel Lucas, Australian actress and model

    MelbourneWikipedia: Isabel Lucas
  35. 1941

    Robin Morgan, American actress, journalist, and author (died 2026)

    Lake Worth BeachWikipedia: Robin Morgan
  36. 1862

    Frederick Delius, English composer (died 1934)

  37. 1965

    Dominik Hašek, Czech ice hockey player

    PardubiceWikipedia: Dominik Hašek
  38. 1975

    Sara Gilbert, American actress, producer, and talk show host

    Santa MonicaWikipedia: Sara Gilbert
  39. 1905

    Barnett Newman, American painter and etcher (died 1970)

    New York CityWikipedia: Barnett Newman
  40. 1913

    Victor Mature, American actor (died 1999)

    LouisvilleWikipedia: Victor Mature
  41. 1942

    Arnaldo Tamayo Méndez, Cuban military officer, legislator and cosmonaut

    GuantánamoWikipedia: Arnaldo Tamayo Méndez
  42. 2003

    Jarell Quansah, English footballer

    WarringtonWikipedia: Jarell Quansah
  43. 1874

    John D. Rockefeller Jr., American businessman and philanthropist (died 1960)

    ClevelandWikipedia: John D. Rockefeller Jr.
  44. 1949

    Tommy Ramone, Hungarian-American drummer and producer (died 2014)

    BudapestWikipedia: Tommy Ramone
  45. 1968

    Edward Burns, American actor, director, writer, and producer

    WoodsideWikipedia: Edward Burns
  46. 1977

    Justin Hartley, American actor

    KnoxvilleWikipedia: Justin Hartley
  47. 1929

    Elio Petri, Italian director and screenwriter (died 1982)

    RomeWikipedia: Elio Petri
  48. 1969

    Sam Trammell, American actor

    New OrleansWikipedia: Sam Trammell
  49. 1985

    Rag'n'Bone Man, English singer-songwriter

    EastbourneWikipedia: Rag'n'Bone Man
  50. 1761

    Albert Gallatin, Swiss-American ethnologist, linguist, and politician, 4th United States Secretary of the Treasury (died 1849)

    GenevaWikipedia: Albert Gallatin
  51. 1962

    Gauri Lankesh, Indian journalist and activist (died 2017)

    Shimoga districtWikipedia: Gauri Lankesh
  52. 1923

    Paddy Chayefsky, American author and screenwriter (died 1981)

    The BronxWikipedia: Paddy Chayefsky
  53. 1888

    Sydney Chapman, English mathematician and geophysicist (died 1970)

    EcclesWikipedia: Sydney Chapman
  54. 1993

    Kyary Pamyu Pamyu, Japanese singer

    Nishitōkyō-shiWikipedia: Kyary Pamyu Pamyu
  55. 1756

    Henry Lee III, American general and politician, 9th Governor of Virginia (died 1818)

    DumfriesWikipedia: Henry Lee III
  56. 1948

    Marc Singer, Canadian-American actor

    VancouverWikipedia: Marc Singer
  57. 1717

    Jeffery Amherst, 1st Baron Amherst, English field marshal and politician, 19th Governor General of Canada (died 1797)

  58. 1933

    Sacha Distel, French singer and guitarist (died 2004)

    13th arrondissement of ParisWikipedia: Sacha Distel
  59. 1947

    David Byron, English singer-songwriter (died 1985)

    EppingWikipedia: David Byron
  60. 1950

    Ann Jillian, American actress and singer

    CambridgeWikipedia: Ann Jillian

What is celebrated on 29 January

  • Christian feast day: Aphrahat
  • Christian feast day: Gildas
  • Christian feast day: Sabinian of Troyes
  • Christian feast day: Sulpitius I of Bourges
  • Christian feast day: Blessed Villana de' Botti
  • Christian feast day: January 29 (Eastern Orthodox liturgics)
  • Earliest day on which Fat Thursday can fall, while March 4 is the latest; celebrated on Thursday before Ash Wednesday. (Christianity)
  • Kansas Day (Kansas, United States)

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