A day on the globeROENES中文
The Earth on 19 May, with the rays of the day’s events
  1. A birthday on the globe

    19 May on the globe: what happened in the world on this day, and who was born

    For 19 May, the English Wikipedia lists 58 events and 203 births. 26 of the events stand at their places as rays of light; seven 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 19 May

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

    On 19 May the Sun passes straight overhead at noon along the parallel of 19.8° north. In London, the day lasts about 15 hours 50 minutes.

    Beyond 70° north the Sun no longer sets; beyond 70° 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. 19 May

    Britain and Ireland#

    Three events from the day’s list are placed here, between 1649 and 2018.

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

  4. Britain & Ireland · Greenhithe, Kent

    1845

    Captain Sir John Franklin and his ill-fated Arctic expedition depart from Greenhithe, England.

    On the map: Greenhithe, Kent.

    Wikipedia: John Franklin

  5. Britain & Ireland · St George's Chapel, Windsor

    2018

    The wedding of Prince Harry and Meghan Markle is held at St George's Chapel, Windsor, with an estimated global audience of 1.9 billion.

    On the map: St George's Chapel, Windsor.

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

    Wikipedia: Wedding of Prince Harry and Meghan Markle

  6. 19 May

    Asia#

    10 events from the day’s list are placed here, between 934 and 2024.

    The globe stops at one of them; the whole list is further down. All 10

  7. Asia · Malatya

    934

    The Byzantine Empire reconquers Melitene under the leadership of John Kourkouas.

    On the map: Malatya.

    Wikipedia: Byzantine Empire

  8. 19 May

    North America#

    Six events from the day’s list are placed here, between 1776 and 2015.

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

  9. North America · United States Congress

    1921

    The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.

    On the map: United States Congress.

    Wikipedia: United States Congress

  10. North America · Madison Square Garden

    1962

    A birthday salute to U.S. President John F. Kennedy takes place at Madison Square Garden, New York City. The highlight is Marilyn Monroe's rendition of "Happy Birthday".

    On the map: Madison Square Garden.

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

    Wikipedia: Happy Birthday, Mr. President

  11. 19 May

    Born on 19 May#

    The English Wikipedia lists 203 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.

  12. Born on 19 May

    1762

    Johann Gottlieb Fichte, German philosopher and academic (died 1814)

    Place of birth: Rammenau.

    Wikipedia: Johann Gottlieb Fichte

  13. Born on 19 May

    1977

    Natalia Oreiro, Uruguayan singer-songwriter and actress

    Place of birth: Montevideo.

    Wikipedia: Natalia Oreiro

  14. Born on 19 May

    1979

    Diego Forlán, Uruguayan footballer

    Place of birth: Montevideo.

    Wikipedia: Diego Forlán

  15. Born on 19 May

    1979

    Andrea Pirlo, Italian footballer

    Place of birth: Flero.

    Wikipedia: Andrea Pirlo

  16. Born on 19 May

    1941

    Nora Ephron, American director, producer, and screenwriter (died 2012)

    Place of birth: Upper West Side.

    Wikipedia: Nora Ephron

  17. Born in Britain and Ireland

    1992

    Sam Smith, English singer-songwriter

    Place of birth: London.

    Wikipedia: Sam Smith

  18. Born in Britain and Ireland

    1945

    Pete Townshend, English singer-songwriter and guitarist

    Place of birth: London.

    Wikipedia: Pete Townshend

  19. Born in Britain and Ireland

    1944

    Peter Mayhew, English-American actor (died 2019)

    Place of birth: Barnes.

    Wikipedia: Peter Mayhew

  20. 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 19 May

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 25 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. 639

    Ashina Jiesheshuai and his tribesmen assault Emperor Taizong at Jiucheng Palace.

  2. 715

    Pope Gregory II is elected.

    no place on the mapWikipedia: Pope Gregory II
  3. 934

    The Byzantine Empire reconquers Melitene under the leadership of John Kourkouas.

    Asia · MalatyaWikipedia: Byzantine Empire
  4. 1051

    Henry I of France marries the Rus' princess, Anne of Kiev.

    Europe · Kievan Rus'Wikipedia: Henry I of France
  5. 1445

    John II of Castile defeats the Infantes of Aragon at the First Battle of Olmedo.

    Europe · First Battle of OlmedoWikipedia: First Battle of Olmedo
  6. 1499

    Catherine of Aragon is married by proxy to Arthur, Prince of Wales. Catherine is 13 and Arthur is 12.

  7. 1535

    French explorer Jacques Cartier sets sail on his second voyage to North America with three ships, 110 men, and Chief Donnacona's two sons (whom Cartier had kidnapped during his first voyage).

    no place on the mapWikipedia: Jacques Cartier
  8. 1536

    Anne Boleyn, the second wife of Henry VIII of England, is beheaded for adultery, treason, and incest.

    no place on the mapWikipedia: Anne Boleyn
  9. 1542

    The Prome Kingdom falls to the Taungoo Dynasty in present-day Myanmar.

    no place on the mapWikipedia: Prome kingdom
  10. 1643

    Thirty Years' War: French forces under the duc d'Enghien decisively defeat Spanish forces at the Battle of Rocroi, marking the symbolic end of Spain as a dominant land power.

    Europe · Battle of RocroiWikipedia: Battle of Rocroi
  11. 1649

    An Act of Parliament declaring England a Commonwealth is passed by the Long Parliament. England would be a republic for the next eleven years.

    Britain & Ireland · Commonwealth of EnglandWikipedia: Act of parliament
  12. 1655

    The Invasion of Jamaica begins during the Anglo-Spanish War.

    Latin America · Invasion of JamaicaWikipedia: Invasion of Jamaica
  13. 1674

    John III Sobieski becomes king of Poland-Lithuania.

    Europe · Polish–Lithuanian CommonwealthWikipedia: John III Sobieski
  14. 1743

    Jean-Pierre Christin develops the centigrade temperature scale.

  15. 1749

    King George II of Great Britain grants the Ohio Company a charter of land around the forks of the Ohio River.

  16. 1776

    American Revolutionary War: A Continental Army garrison surrenders in the Battle of The Cedars.

    North America · Battle of the CedarsWikipedia: Battle of the Cedars
  17. 1780

    New England's Dark Day, an unusual darkening of the day sky, is observed over the New England states and parts of Canada.

  18. 1798

    Napoleon Bonaparte and his expedition force leave France to invade Egypt.

  19. 1802

    Napoleon Bonaparte founds the Legion of Honour.

    no place on the mapWikipedia: Napoleon
  20. 1828

    U.S. President John Quincy Adams signs the Tariff of 1828 into law, sparking outrage in the South and leading to the Nullification crisis.

  21. 1845

    Captain Sir John Franklin and his ill-fated Arctic expedition depart from Greenhithe, England.

    Britain & Ireland · Greenhithe, KentWikipedia: John Franklin
  22. 1848

    Mexican–American War: Mexico ratifies the Treaty of Guadalupe Hidalgo, thus ending the war and ceding California, Nevada, Utah and parts of four other modern-day U.S. states to the United States for US$15 million.

    Latin America · Villa de Guadalupe HidalgoWikipedia: Mexican–American War
  23. 1883

    Buffalo Bill's first Buffalo Bill's Wild West opens in Omaha, Nebraska.

    no place on the mapWikipedia: Buffalo Bill
  24. 1900

    Great Britain annexes Tonga Island.

    Oceania · Tonga IslandWikipedia: Great Britain
  25. 1900

    Second Boer War: British troops relieve Mafeking.

    Africa · Siege of MafekingWikipedia: Second Boer War
  26. 1911

    Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.

    no place on the mapWikipedia: Parks Canada
  27. 1915

    First World War: Australian and New Zealand troops repelled the third attack on Anzac Cove, inflicting heavy casualties on the attacking Ottoman forces.

    Asia · Third attack on Anzac CoveWikipedia: World War I
  28. 1917

    The Norwegian football club Rosenborg BK is founded.

    no place on the mapWikipedia: Rosenborg BK
  29. 1919

    Mustafa Kemal Atatürk lands at Samsun on the Anatolian Black Sea coast, initiating what is later termed the Turkish War of Independence.

    Asia · SamsunWikipedia: Turkish War of Independence
  30. 1921

    The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.

    North America · United States CongressWikipedia: United States Congress
  31. 1922

    The Young Pioneer Organization of the Soviet Union is established.

    no place on the mapWikipedia: Young Pioneers
  32. 1933

    Finnish cavalry general C. G. E. Mannerheim is appointed the field marshal.

  33. 1934

    Zveno and the Bulgarian Army engineer a coup d'état and install Kimon Georgiev as the new Prime Minister of Bulgaria.

    Europe · BulgariaWikipedia: 1934 Bulgarian coup d'état
  34. 1942

    World War II: In the aftermath of the Battle of the Coral Sea, Task Force 16 heads to Pearl Harbor for repairs.

    Oceans · Battle of the Coral SeaWikipedia: World War II
  35. 1943

    Winston Churchill's second wartime address to the U.S. Congress

  36. 1945

    Syrian demonstrators in Damascus are fired upon by French troops injuring twelve, leading to the Levant Crisis.

    Asia · DamascusWikipedia: Levant Crisis
  37. 1950

    A barge containing munitions destined for Pakistan explodes in the harbor at South Amboy, New Jersey, devastating the city.

    North America · South Amboy powder pier explosionWikipedia: South Amboy powder pier explosion
  38. 1959

    The North Vietnamese Army establishes Group 559, whose responsibility is to determine how to maintain supply lines to South Vietnam; the resulting route is the Ho Chi Minh trail.

    Asia · South VietnamWikipedia: People's Army of Vietnam
  39. 1961

    At Silchar Railway Station, Assam, 11 Bengalis die when police open fire on protesters demanding state recognition of Bengali language in the Bengali Language Movement.

    Asia · SilcharWikipedia: Silchar
  40. 1961

    Venera program: Venera 1 becomes the first man-made object to fly by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back any data).

    no place on the mapWikipedia: Venera program
  41. 1962

    A birthday salute to U.S. President John F. Kennedy takes place at Madison Square Garden, New York City. The highlight is Marilyn Monroe's rendition of "Happy Birthday".

    North America · Madison Square GardenWikipedia: Happy Birthday, Mr. President
  42. 1963

    The New York Post Sunday Magazine publishes Martin Luther King Jr.'s Letter from Birmingham Jail.

  43. 1971

    Mars probe program: Mars 2 is launched by the Soviet Union.

    Asia · Soviet UnionWikipedia: Soviet Mars program
  44. 1986

    The Firearm Owners Protection Act is signed into law by U.S. President Ronald Reagan.

  45. 1991

    Croatians vote for independence in a referendum.

    Europe · CroatiaWikipedia: 1991 Croatian independence referendum
  46. 1993

    SAM Colombia Flight 501 crashes on approach to José María Córdova International Airport in Medellín, Colombia, killing 132.

    Latin America · José María Córdova International AirportWikipedia: SAM Colombia Flight 501
  47. 1996

    Space Shuttle program: Space Shuttle Endeavour is launched on mission STS-77.

  48. 1997

    The Sierra Gorda biosphere, the most ecologically diverse region in Mexico, is established as a result of grassroots efforts.

    no place on the mapWikipedia: Sierra Gorda
  49. 2000

    Space Shuttle program: Space Shuttle Atlantis is launched on mission STS-101 to resupply the International Space Station.

  50. 2007

    A mass shooting starts in Moscow, Idaho, which would leave 3 non-shooters dead and 3 more injured, before the shooter committed suicide the next day.

    North America · Moscow, IdahoWikipedia: 2007 Moscow, Idaho, shooting
  51. 2007

    President of Romania Traian Băsescu survives an impeachment referendum and returns to office from suspension.

  52. 2010

    The Royal Thai Armed Forces concludes its crackdown on protests by forcing the surrender of United Front for Democracy Against Dictatorship leaders.

    Asia · BangkokWikipedia: 2010 Thai military crackdown
  53. 2012

    A car bomb explodes near a military complex in the Syrian city of Deir ez-Zor, killing nine people.

    Asia · Deir ez-ZorWikipedia: 2012 Deir ez-Zor bombing
  54. 2012

    Three gas cylinder bombs explode in front of a vocational school in the Italian city of Brindisi, killing one person and injuring five others.

    Europe · Brindisi school bombingWikipedia: Brindisi school bombing
  55. 2015

    The Refugio oil spill deposited 142,800 U.S. gallons (3,400 barrels) of crude oil onto an area in California considered one of the most biologically diverse coastlines of the west coast.

    North America · Refugio oil spillWikipedia: Refugio oil spill
  56. 2016

    EgyptAir Flight 804 crashes into the Mediterranean Sea while traveling from Paris to Cairo, killing all on board.

    Oceans · EgyptAir Flight 804Wikipedia: EgyptAir Flight 804
  57. 2018

    The wedding of Prince Harry and Meghan Markle is held at St George's Chapel, Windsor, with an estimated global audience of 1.9 billion.

    Britain & Ireland · St George's Chapel, WindsorWikipedia: Wedding of Prince Harry and Meghan Markle
  58. 2024

    A helicopter crash in Iran leaves 8 people dead, including the country's president Ebrahim Raisi & foreign minister Hossein Amir-Abdollahian.

    Asia · 2024 Varzaqan helicopter crashWikipedia: 2024 Varzaqan helicopter crash

Who was born on 19 May

In order of how many Wikipedia editions have an article about each. The first 60 of 203 are shown.

  1. 1881

    Mustafa Kemal Atatürk (official birthday), Turkish field marshal and statesman, 1st President of Turkey (died 1938)

    ThessalonikiWikipedia: Mustafa Kemal Atatürk
  2. 1890

    Ho Chi Minh, Vietnamese politician, 1st President of Vietnam (died 1969)

    Kim LiênWikipedia: Ho Chi Minh
  3. 1925

    Malcolm X, American minister and activist (died 1965)

    OmahaWikipedia: Malcolm X
  4. 1925

    Pol Pot, Cambodian general and politician, 29th Prime Minister of Cambodia (died 1998)

    Prek SbauvWikipedia: Pol Pot
  5. 1762

    Johann Gottlieb Fichte, German philosopher and academic (died 1814)

    RammenauWikipedia: Johann Gottlieb Fichte
  6. 1977

    Natalia Oreiro, Uruguayan singer-songwriter and actress

    MontevideoWikipedia: Natalia Oreiro
  7. 1979

    Diego Forlán, Uruguayan footballer

    MontevideoWikipedia: Diego Forlán
  8. 1979

    Andrea Pirlo, Italian footballer

    FleroWikipedia: Andrea Pirlo
  9. 1941

    Nora Ephron, American director, producer, and screenwriter (died 2012)

    Upper West SideWikipedia: Nora Ephron
  10. 1992

    Sam Smith, English singer-songwriter

    LondonWikipedia: Sam Smith
  11. 1898

    Julius Evola, Italian philosopher and painter (died 1974)

    RomeWikipedia: Julius Evola
  12. 1914

    Max Perutz, Austrian-English biologist and academic, Nobel Prize laureate (died 2002)

    ViennaWikipedia: Max Perutz
  13. 1955

    James Gosling, Canadian-American computer scientist, created Java

    CalgaryWikipedia: James Gosling
  14. 1945

    Pete Townshend, English singer-songwriter and guitarist

    LondonWikipedia: Pete Townshend
  15. 1909

    Nicholas Winton, English banker and humanitarian (died 2015)

    HampsteadWikipedia: Nicholas Winton
  16. 1913

    Neelam Sanjiva Reddy, Indian lawyer and politician, 6th President of India (died 1996)

    KadapaWikipedia: Neelam Sanjiva Reddy
  17. 1976

    Kevin Garnett, American basketball player

    GreenvilleWikipedia: Kevin Garnett
  18. 1744

    Charlotte of Mecklenburg-Strelitz, German-born Queen to George III of the United Kingdom (died 1818)

  19. 1948

    Grace Jones, Jamaican-American singer-songwriter, producer, and actress

    Spanish TownWikipedia: Grace Jones
  20. 1977

    Manuel Almunia, Spanish footballer

    PamplonaWikipedia: Manuel Almunia
  21. 1992

    Marshmello, American electronic music producer and DJ

    PhiladelphiaWikipedia: Marshmello
  22. 1944

    Peter Mayhew, English-American actor (died 2019)

    BarnesWikipedia: Peter Mayhew
  23. 1946

    André the Giant, French-American wrestler and actor (died 1993)

    CoulommiersWikipedia: André the Giant
  24. 1952

    Bert van Marwijk, Dutch footballer, coach, and manager

    DeventerWikipedia: Bert van Marwijk
  25. 2002

    Riccardo Calafiori, Italian footballer

    RomeWikipedia: Riccardo Calafiori
  26. 1933

    Edward de Bono, Maltese physician, author, and academic (died 2021)

    MaltaWikipedia: Edward de Bono
  27. 1974

    Nawazuddin Siddiqui, Indian actor

    BudhanaWikipedia: Nawazuddin Siddiqui
  28. 1861

    Nellie Melba, Australian soprano and actress (died 1931)

    RichmondWikipedia: Nellie Melba
  29. 1946

    Michele Placido, Italian actor and director

    Ascoli SatrianoWikipedia: Michele Placido
  30. 1879

    Nancy Astor, Viscountess Astor, American-English politician (died 1964)

  31. 1951

    Joey Ramone, American singer-songwriter (died 2001)

    Forest HillsWikipedia: Joey Ramone
  32. 1932

    Elena Poniatowska, Mexican intellectual and journalist

    ParisWikipedia: Elena Poniatowska
  33. 1939

    Dick Scobee, American pilot, and astronaut (died 1986)

    Cle ElumWikipedia: Dick Scobee
  34. 2003

    Jojo Siwa, American dancer, singer, actress, and YouTube personality

    OmahaWikipedia: JoJo Siwa
  35. 1942

    Gary Kildall, American computer scientist, founded Digital Research Inc. (died 1994)

    SeattleWikipedia: Gary Kildall
  36. 1954

    Phil Rudd, Australian-New Zealand drummer

    MelbourneWikipedia: Phil Rudd
  37. 1966

    Jodi Picoult, American author and educator

    NesconsetWikipedia: Jodi Picoult
  38. 1992

    Heather Watson, British tennis player

    Saint Peter PortWikipedia: Heather Watson
  39. 1928

    Colin Chapman, English engineer and businessman, founded Lotus Cars (died 1982)

    LondonWikipedia: Colin Chapman
  40. 1930

    Lorraine Hansberry, American playwright and director (died 1965)

    ChicagoWikipedia: Lorraine Hansberry
  41. 1939

    Jānis Lūsis, Latvian javelin thrower and coach (died 2020)

    JelgavaWikipedia: Jānis Lūsis
  42. 1795

    Johns Hopkins, American businessman and philanthropist (died 1873)

    GambrillsWikipedia: Johns Hopkins
  43. 1939

    James Fox, English actor

    LondonWikipedia: James Fox
  44. 1939

    Nancy Kwan, Hong Kong-American actress and makeup artist

    British Hong KongWikipedia: Nancy Kwan
  45. 1616

    Johann Jakob Froberger, German organist and composer (died 1667)

    StuttgartWikipedia: Johann Jakob Froberger
  46. 1928

    Dolph Schayes, American basketball player and coach (died 2015)

    The BronxWikipedia: Dolph Schayes
  47. 1939

    Livio Berruti, Italian sprinter

    TurinWikipedia: Livio Berruti
  48. 1949

    Dusty Hill, American singer-songwriter and bass player (died 2021)

    DallasWikipedia: Dusty Hill
  49. 1986

    Mario Chalmers, American basketball player

    AnchorageWikipedia: Mario Chalmers
  50. 1906

    Bruce Bennett, American shot putter and actor (died 2007)

    TacomaWikipedia: Bruce Bennett
  51. 1918

    Abraham Pais, Dutch-American physicist, historian, and academic (died 2000)

    AmsterdamWikipedia: Abraham Pais
  52. 1934

    Ruskin Bond, Indian author and poet

    KasauliWikipedia: Ruskin Bond
  53. 1940

    Jan Janssen, Dutch cyclist

    Pijnacker-NootdorpWikipedia: Jan Janssen
  54. 1773

    Arthur Aikin, English chemist and mineralogist (died 1854)

    WarringtonWikipedia: Arthur Aikin
  55. 1908

    Percy Williams, Canadian sprinter (died 1982)

    VancouverWikipedia: Percy Williams
  56. 1964

    Miloslav Mečíř, Slovak tennis player

    BojniceWikipedia: Miloslav Mečíř
  57. 1927

    Serge Lang, French-American mathematician, author and academic (died 2005)

    16th arrondissement of ParisWikipedia: Serge Lang
  58. 1953

    Shavarsh Karapetyan, Armenian finswimmer

    VanadzorWikipedia: Shavarsh Karapetyan
  59. 1972

    Claudia Karvan, Australian actress, producer, and screenwriter

    SydneyWikipedia: Claudia Karvan
  60. 1981

    Luciano Figueroa, Argentinian footballer

    Santa FeWikipedia: Luciano Figueroa

What is celebrated on 19 May

  • Christian feast day: Calocerus (Eastern Orthodox Church)
  • Christian feast day: Crispin of Viterbo
  • Christian feast day: Dunstan (Roman Catholic Church, Eastern Orthodox Church; commemoration, Anglicanism)
  • Christian feast day: Ivo of Kermartin
  • Christian feast day: Joaquina Vedruna de Mas
  • Christian feast day: Maria Bernarda Bütler
  • Christian feast day: Peter Celestine
  • Christian feast day: Pudentiana (Roman Catholic Church, Eastern Orthodox Church)
  • Christian feast day: Blessed Umiliana de' Cerchi
  • Christian feast day: May 19 (Eastern Orthodox liturgics)
  • Pontian Greek Genocide Remembrance Day (Greece)
  • Commemoration of Atatürk, Youth and Sports Day (Turkey, Northern Cyprus)
  • Remembrance Day (Sri Lanka)
  • Hồ Chí Minh's Birthday (Vietnam)

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