A day on the globeROENES中文
The Earth on 15 June, with the rays of the day’s events
  1. A birthday on the globe

    15 June on the globe: what happened in the world on this day, and who was born

    For 15 June, the English Wikipedia lists 44 events and 223 births. 30 of the events stand at their places as rays of light; two 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 15 June

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

    On 15 June the Sun passes straight overhead at noon along the parallel of 23.3° north. In London, the day lasts about 16 hours 35 minutes.

    Beyond 67° north the Sun no longer sets; beyond 67° south 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. 15 June

    Britain and Ireland#

    Three events from the day’s list are placed here, between 1567 and 1996.

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

  4. Britain & Ireland · Clifden

    1919

    John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.

    On the map: Clifden.

    Wikipedia: Transatlantic flight of Alcock and Brown

  5. 15 June

    Europe#

    11 events from the day’s list are placed here, between 844 and 1995.

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

  6. Europe · Rome

    844

    Louis II is crowned as king of Italy at Rome by pope Sergius II.

    On the map: Rome.

    Wikipedia: Louis II of Italy

  7. 15 June

    Asia#

    Nine events from the day’s list are placed here, between 763 BC and 2013.

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

  8. Asia · Assyrian eclipse

    763 BC

    Assyrians record a solar eclipse that is later used to fix the chronology of Mesopotamian history.

    On the map: Assyrian eclipse.

    Wikipedia: Assyrian eclipse

  9. Asia · Constantinople

    1285

    The Byzantine Empire and the Republic of Venice conclude a treaty. Apart from agreeing on a ten year truce, the Venetians are alloted a commercial quarter in Constantinople and are restored to earlier privileges.

    On the map: Constantinople.

    Wikipedia: Byzantine–Venetian treaty of 1285

  10. 15 June

    The open ocean and Antarctica#

    Two events from the day’s list are placed here, between 1896 and 2006.

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

  11. Oceans · Northwestern Hawaiian Islands

    2006

    US president George W. Bush designated 140,000 square miles (360,000 km2) around the Northwestern Hawaiian Islands as the Papahānaumokuākea Marine National Monument, now one of the world's largest protected areas.

    On the map: Northwestern Hawaiian Islands.

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

    Wikipedia: George W. Bush

  12. 15 June

    What the other Wikipedias remember#

    For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Spanish and Chinese and were translated for this page.

  13. From Wikipedia in Spanish · Bilbao

    1300

    In Spain, the town of Bilbao is founded.

    On the map: Bilbao.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Bilbao

  14. From Wikipedia in Chinese · Basel

    1954

    After consultations among the Italian, Belgian and French football associations, the Union of European Football Associations (UEFA) is founded in Basel, Switzerland.

    On the map: Basel.

    Translated from the list on Wikipedia in Chinese.

    The article on Wikipedia in Chinese: 欧洲足球协会联盟

  15. 15 June

    Born on 15 June#

    The English Wikipedia lists 223 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.

  16. Born on 15 June

    1843

    Edvard Grieg, Norwegian pianist and composer (died 1907)

    Place of birth: Bergen.

    Wikipedia: Edvard Grieg

  17. Born on 15 June

    1992

    Mohamed Salah, Egyptian footballer

    Place of birth: Nagrig.

    Wikipedia: Mohamed Salah

  18. Born on 15 June

    1964

    Courteney Cox, American actress and producer

    Place of birth: Birmingham.

    Wikipedia: Courteney Cox

  19. Born on 15 June

    1969

    Ice Cube, American rapper, producer, and actor

    Place of birth: Los Angeles.

    Wikipedia: Ice Cube

  20. Born on 15 June

    1969

    Oliver Kahn, German footballer and sportscaster

    Place of birth: Karlsruhe.

    Wikipedia: Oliver Kahn

  21. Born in Britain and Ireland

    1949

    Simon Callow, English actor and director

    Place of birth: Streatham.

    Wikipedia: Simon Callow

  22. Born in Britain and Ireland

    1765

    Henry Thomas Colebrooke, English orientalist (died 1837)

    Place of birth: London.

    Wikipedia: Henry Thomas Colebrooke

  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 15 June

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 12 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. 763 BC

    Assyrians record a solar eclipse that is later used to fix the chronology of Mesopotamian history.

    Asia · Assyrian eclipseWikipedia: Assyrian eclipse
  2. 844

    Louis II is crowned as king of Italy at Rome by pope Sergius II.

    Europe · RomeWikipedia: Louis II of Italy
  3. 923

    Battle of Soissons: King Robert I of France is killed and King Charles the Simple is arrested by the supporters of Duke Rudolph of Burgundy.

    Europe · Battle of SoissonsWikipedia: Battle of Soissons
  4. 1184

    The naval Battle of Fimreite is won by the Birkebeiner pretender Sverre Sigurdsson. Sigurdsson takes the Norwegian throne and King Magnus V of Norway is killed.

    Europe · Battle of FimreiteWikipedia: Battle of Fimreite
  5. 1215

    King John of England puts his seal to Magna Carta.

  6. 1219

    Northern Crusades: Danish victory at the Battle of Lindanise (modern-day Tallinn) establishes the Danish Duchy of Estonia.

    Europe · Battle of LyndanisseWikipedia: Battle of Lyndanisse
  7. 1246

    With the death of Frederick II, Duke of Austria, the Babenberg dynasty ends in Austria.

  8. 1285

    The Byzantine Empire and the Republic of Venice conclude a treaty. Apart from agreeing on a ten year truce, the Venetians are alloted a commercial quarter in Constantinople and are restored to earlier privileges.

    Asia · ConstantinopleWikipedia: Byzantine–Venetian treaty of 1285
  9. 1310

    The Tiepolo conspiracy, seeking to seize power in the Republic of Venice, is thwarted after bloody street clashes in Venice. The suppression of the revolt will lead to the creation of the Council of Ten.

    Europe · RialtoWikipedia: Tiepolo conspiracy
  10. 1312

    At the Battle of Rozgony, King Charles I of Hungary wins a decisive victory over the family of Palatine Amade Aba.

    Europe · Battle of RozgonyWikipedia: Battle of Rozgony
  11. 1389

    The Ottomans under Sultan Murad I defeat a Serb army under Lazar of Serbia in the battle of Kosovo. Both leaders are killed in the battle.

    Europe · Battle of KosovoWikipedia: Battle of Kosovo
  12. 1410

    In a decisive battle at Onon River, the Mongol forces of Oljei Temur were decimated by the Chinese armies of the Yongle Emperor.

  13. 1410

    Ottoman Interregnum: Süleyman Çelebi defeats his brother Musa Çelebi outside the Byzantine capital, Constantinople.

    Asia · EyüpsultanWikipedia: Battle of Kosmidion
  14. 1520

    Pope Leo X threatens to excommunicate Martin Luther in Exsurge Domine.

    no place on the mapWikipedia: Exsurge Domine
  15. 1567

    Mary, Queen of Scots, and her new husband Bothwell are confronted by disgruntled Scottish nobles in the encounter at Carberry Hill. The stand-off ends with the surrender of queen Mary.

    Britain & Ireland · MusselburghWikipedia: Battle of Carberry Hill
  16. 1607

    Virginia colonists finish building James's Fort, to defend against Spanish and Native American attacks.

    North America · JamestownWikipedia: Jamestown
  17. 1800

    War of the Second Coalition: The signing of the Convention of Alessandria brought temporary peace between France and Austria.

    Europe · AlessandriaWikipedia: Convention of Alessandria
  18. 1804

    New Hampshire approves the Twelfth Amendment to the United States Constitution, ratifying the document.

    North America · New HampshireWikipedia: New Hampshire
  19. 1826

    In the Auspicious Incident, the Janissary mutiny against Sultan Mahmud II is defeated and the Janissary corps is disbanded as a result.

    Asia · IstanbulWikipedia: Auspicious Incident
  20. 1834

    The looting of Safed commences.

    Asia · 1834 looting of SafedWikipedia: 1834 looting of Safed
  21. 1846

    The Oregon Treaty extends the border between the United States and British North America, established by the Treaty of 1818, westward to the Pacific Ocean.

    no place on the mapWikipedia: Oregon Treaty
  22. 1859

    Ambiguity in the Oregon Treaty leads to the "Northwestern Boundary Dispute" between American and British/Canadian settlers.

    North America · Pig WarWikipedia: Pig War
  23. 1864

    American Civil War: The Second Battle of Petersburg begins.

    North America · Second Battle of PetersburgWikipedia: American Civil War
  24. 1878

    Eadweard Muybridge took a series of photographs to prove that all four feet of a horse leave the ground when it gallops, which became the basis of motion pictures

  25. 1896

    One of the deadliest tsunamis in Japan's history kills more than 22,000 people.

    Oceans · 1896 Sanriku earthquakeWikipedia: 1896 Sanriku earthquake
  26. 1904

    A fire aboard the steamboat SS General Slocum in New York City's East River kills 1,000.

    no place on the mapWikipedia: PS General Slocum
  27. 1919

    John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.

    Britain & Ireland · ClifdenWikipedia: Transatlantic flight of Alcock and Brown
  28. 1920

    Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.

  29. 1920

    Three African-American circus workers were lynched by a mob in Duluth, Minnesota, a crime that shocked the country for having taken place in the Northern United States.

    North America · Duluth lynchingsWikipedia: Duluth lynchings
  30. 1921

    Bessie Coleman became the first Black person to earn an international pilot's license from the Fédération Aéronautique Internationale.

    no place on the mapWikipedia: Bessie Coleman
  31. 1940

    World War II: Operation Aerial begins: Allied troops start to evacuate France, following Germany's takeover of Paris and most of the nation.

    Europe · Operation AerialWikipedia: World War II
  32. 1944

    In the Saskatchewan general election, the CCF, led by Tommy Douglas, is elected and forms the first socialist government in North America.

  33. 1944

    World War II: The United States Army Air Forces began the first air raid of its strategic bombing campaign against the Japanese archipelago, although little damage was caused.

    Asia · Bombing of YawataWikipedia: Bombing of Yawata
  34. 1944

    World War II: The United States invades Saipan, capital of Japan's South Seas Mandate.

    Oceania · Battle of SaipanWikipedia: Battle of Saipan
  35. 1972

    Cathay Pacific Flight 700Z is destroyed by a bomb over Pleiku, Vietnam (then South Vietnam) and kills 81 people.

    Asia · Cathay Pacific Flight 700ZWikipedia: Cathay Pacific Flight 700Z
  36. 1977

    After the death of dictator Francisco Franco in 1975, the first democratic elections take place in Spain.

    Europe · SpainWikipedia: Death and funeral of Francisco Franco
  37. 1978

    King Hussein of Jordan married American Lisa Halaby, who became known as Queen Noor of Jordan.

    no place on the mapWikipedia: Hussein of Jordan
  38. 1988

    The Ariane 4 rocket is launched on its maiden flight.

    no place on the mapWikipedia: Ariane 4
  39. 1991

    In the Philippines, Mount Pinatubo erupts in the second largest volcanic eruption of the 20th century, killing over 800 people.

    Asia · 1991 eruption of Mount PinatuboWikipedia: 1991 eruption of Mount Pinatubo
  40. 1992

    The United States Supreme Court rules in United States v. Álvarez-Machaín that it is permissible for the United States to forcibly extradite suspects in foreign countries and bring them to the United States for trial, without approval from those other countries.

    North America · Supreme Court of the United StatesWikipedia: Supreme Court of the United States
  41. 1995

    Western Greece was struck by an earthquake registering 6.4–6.5 Mw that killed 26 people.

    Europe · 1995 Aigio earthquakeWikipedia: 1995 Aigio earthquake
  42. 1996

    The Troubles: The Provisional Irish Republican Army (IRA) detonates a powerful truck bomb in the middle of Manchester, England, devastating the city centre and injuring 200 people.

    Britain & Ireland · 1996 Manchester bombingWikipedia: The Troubles
  43. 2006

    US president George W. Bush designated 140,000 square miles (360,000 km2) around the Northwestern Hawaiian Islands as the Papahānaumokuākea Marine National Monument, now one of the world's largest protected areas.

    Oceans · Northwestern Hawaiian IslandsWikipedia: George W. Bush
  44. 2013

    A bomb explodes on a bus in the Pakistani city of Quetta, killing at least 25 people and wounding 22 others.

    Asia · QuettaWikipedia: June 2013 Quetta attacks

What the other Wikipedias remember

For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Spanish and Chinese and were translated for this page.

  1. 1300

    In Spain, the town of Bilbao is founded.

    Europe · BilbaoTranslated from the list on Wikipedia in SpanishWikipedia: Bilbao
  2. 1954

    After consultations among the Italian, Belgian and French football associations, the Union of European Football Associations (UEFA) is founded in Basel, Switzerland.

    Europe · BaselTranslated from the list on Wikipedia in ChineseWikipedia: 欧洲足球协会联盟

Who was born on 15 June

In order of how many Wikipedia editions have an article about each. The first 60 of 223 are shown.

  1. 1953

    Xi Jinping, Chinese engineer and politician, General Secretary of the Communist Party and President of China

    BeijingWikipedia: Xi Jinping
  2. 1914

    Yuri Andropov, Russian politician (died 1984)

    Soluno-DmitriyevskoyeWikipedia: Yuri Andropov
  3. 1843

    Edvard Grieg, Norwegian pianist and composer (died 1907)

    BergenWikipedia: Edvard Grieg
  4. 1992

    Mohamed Salah, Egyptian footballer

    NagrigWikipedia: Mohamed Salah
  5. 1964

    Courteney Cox, American actress and producer

    BirminghamWikipedia: Courteney Cox
  6. 1969

    Ice Cube, American rapper, producer, and actor

    Los AngelesWikipedia: Ice Cube
  7. 1969

    Oliver Kahn, German footballer and sportscaster

    KarlsruheWikipedia: Oliver Kahn
  8. 1943

    Johnny Hallyday, French singer and actor (died 2017)

    9th arrondissement of ParisWikipedia: Johnny Hallyday
  9. 1963

    Helen Hunt, American actress, director, and producer

    Culver CityWikipedia: Helen Hunt
  10. 1949

    Jim Varney, American actor, comedian, and screenwriter (died 2000)

    LexingtonWikipedia: Jim Varney
  11. 1902

    Erik Erikson, German-American psychologist and psychoanalyst (died 1994)

    FrankfurtWikipedia: Erik Erikson
  12. 1973

    Neil Patrick Harris, American actor and singer

    AlbuquerqueWikipedia: Neil Patrick Harris
  13. 1916

    Herbert A. Simon, American political scientist and economist, Nobel Prize laureate (died 2001)

    MilwaukeeWikipedia: Herbert A. Simon
  14. 1964

    Michael Laudrup, Danish footballer and manager

    FrederiksbergWikipedia: Michael Laudrup
  15. 1920

    Alberto Sordi, Italian actor, director, and screenwriter (died 2003)

    RomeWikipedia: Alberto Sordi
  16. 1330

    Edward, the Black Prince of England (died 1376)

    Woodstock PalaceWikipedia: Edward the Black Prince
  17. 1946

    Demis Roussos, Egyptian-Greek singer-songwriter and bass player (died 2015)

    AlexandriaWikipedia: Demis Roussos
  18. 1947

    Alain Aspect, French physicist (Nobel Prize 2022 for experiments with entangled photons)

    AgenWikipedia: Alain Aspect
  19. 1933

    Mohammad-Ali Rajai, Iranian politician, 2nd President of Iran (died 1981)

    QazvinWikipedia: Mohammad-Ali Rajai
  20. 1917

    John Fenn, American chemist and academic, Nobel Prize laureate (died 2010)

    New York CityWikipedia: John B. Fenn
  21. 1950

    Lakshmi Mittal, Indian-English businessman

    RajgarhWikipedia: Lakshmi Mittal
  22. 1966

    Raimonds Vējonis, Latvian politician, 9th President of Latvia

  23. 1479

    Lisa del Giocondo, Italian model, subject of the Mona Lisa (died 1542)

    FlorenceWikipedia: Lisa del Giocondo
  24. 1954

    Jim Belushi, American actor

    WheatonWikipedia: Jim Belushi
  25. 1965

    Karim Massimov, Kazakhstani politician, 7th Prime Minister of Kazakhstan

    AstanaWikipedia: Karim Massimov
  26. 1763

    Kobayashi Issa, Japanese priest and poet (died 1827)

    KashiwabaraWikipedia: Kobayashi Issa
  27. 1924

    Ezer Weizman, Israeli general and politician, 7th President of Israel (died 2005)

    Tel AvivWikipedia: Ezer Weizman
  28. 1945

    Robert Sarah, Guinean cardinal

    OurousWikipedia: Robert Sarah
  29. 1915

    Thomas Huckle Weller, American biologist and virologist, Nobel Prize laureate (died 2008)

    Ann ArborWikipedia: Thomas Huckle Weller
  30. 1932

    Mario Cuomo, American lawyer and politician, 52nd Governor of New York (died 2015)

    JamaicaWikipedia: Mario Cuomo
  31. 1943

    Poul Nyrup Rasmussen, Danish politician, 38th Prime Minister of Denmark

    EsbjergWikipedia: Poul Nyrup Rasmussen
  32. 1906

    Léon Degrelle, Belgian SS officer (died 1994)

    Wikipedia: Léon Degrelle
  33. 1994

    Iñaki Williams, Basque-Ghanaian footballer

    BilbaoWikipedia: Iñaki Williams
  34. 1996

    Aurora, Norwegian singer-songwriter

    StavangerWikipedia: Aurora
  35. 1937

    Waylon Jennings, American singer-songwriter and guitarist (died 2002)

    LittlefieldWikipedia: Waylon Jennings
  36. 1918

    François Tombalbaye, Chadian politician, 1st President of Chad (died 1975)

    BéssadaWikipedia: François Tombalbaye
  37. 1927

    Hugo Pratt, Italian author and illustrator (died 1995)

    RiminiWikipedia: Hugo Pratt
  38. 1992

    Dafne Schippers, Dutch heptathlete and sprinter

    UtrechtWikipedia: Dafne Schippers
  39. 1973

    Tore Andre Flo, Norwegian footballer and coach

    Stryn MunicipalityWikipedia: Tore André Flo
  40. 1981

    John Paintsil, Ghanaian footballer

    KumasiWikipedia: John Paintsil
  41. 1923

    Erland Josephson, Swedish actor and director (died 2012)

    Kungsholm parishWikipedia: Erland Josephson
  42. 1941

    Harry Nilsson, American singer-songwriter (died 1994)

    BrooklynWikipedia: Harry Nilsson
  43. 1978

    Wilfred Bouma, Dutch footballer

    HelmondWikipedia: Wilfred Bouma
  44. 1878

    Margaret Abbott, Indian-American golfer (died 1955)

    KolkataWikipedia: Margaret Abbott
  45. 1767

    Rachel Jackson, American wife of Andrew Jackson (died 1828)

    Halifax CountyWikipedia: Rachel Jackson
  46. 1942

    Peter Norman, Australian sprinter (died 2006)

    MelbourneWikipedia: Peter Norman
  47. 2003

    Pablo Barrios, Spanish footballer

    MadridWikipedia: Pablo Barrios
  48. 1755

    Antoine François, comte de Fourcroy, French chemist and entomologist (died 1809)

  49. 1954

    Paul Rusesabagina, Rwandan humanitarian

    MuramaWikipedia: Paul Rusesabagina
  50. 1970

    Leah Remini, American actress and producer

    BrooklynWikipedia: Leah Remini
  51. 1553

    Archduke Ernest of Austria (died 1595)

  52. 1969

    Cédric Pioline, French tennis player

    Neuilly-sur-SeineWikipedia: Cédric Pioline
  53. 1989

    Bayley, American wrestler

    NewarkWikipedia: Bayley
  54. 1921

    Erroll Garner, American pianist and composer (died 1977)

    PittsburghWikipedia: Erroll Garner
  55. 1936

    William Levada, American cardinal (died 2019)

    Long BeachWikipedia: William Levada
  56. 1949

    Simon Callow, English actor and director

    StreathamWikipedia: Simon Callow
  57. 1979

    Yulia Nestsiarenka, Belarusian sprinter

    BrestWikipedia: Yulia Nestsiarenka
  58. 1519

    Henry FitzRoy, 1st Duke of Richmond and Somerset, English politician, Lord Lieutenant of Ireland (died 1536)

  59. 1765

    Henry Thomas Colebrooke, English orientalist (died 1837)

    LondonWikipedia: Henry Thomas Colebrooke
  60. 1955

    Julie Hagerty, American model and actress

    CincinnatiWikipedia: Julie Hagerty

What is celebrated on 15 June

  • Arbor Day (Costa Rica)
  • Christian feast day: Abraham of Clermont (or of St Cyriacus)
  • Christian feast day: Alice (or Adelaide) of Schaerbeek
  • Christian feast day: Amos
  • Christian feast day: Blessed Albertina Berkenbrock
  • Christian feast day: Blessed Clement Vismara
  • Christian feast day: Edburga of Winchester
  • Christian feast day: Evelyn Underhill (Church of England and The Episcopal Church)
  • Christian feast day: Germaine Cousin
  • Christian feast day: Landelin (of Crespin or of Lobbes)
  • Christian feast day: Blessed Peter Snow
  • Christian feast day: Trillo
  • Christian feast day: Vitus (Guy), Modestus and Crescentia
  • Christian feast day: June 15 (Eastern Orthodox liturgics)

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