A day on the globeROENES中文
The Earth on 11 October, with the rays of the day’s events
  1. A birthday on the globe

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

    For 11 October, the English Wikipedia lists 47 events and 239 births. 20 of the events stand at their places as rays of light; four 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 11 October

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

    On 11 October the Sun passes straight overhead at noon along the parallel of 7.0° south. In London, the day lasts about 11 hours.

    Beyond 83° south the Sun no longer sets; beyond 83° 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. 11 October

    Europe#

    Seven events from the day’s list are placed here, between 1531 and 2013.

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

  4. Europe · Reykjavík Summit

    1986

    Ronald Reagan and Mikhail Gorbachev meet in Iceland to continue discussions about scaling back IRBM arsenals in Europe.

    On the map: Reykjavík Summit.

    Wikipedia: Reykjavík Summit

  5. 11 October

    Oceania#

    Two events from the day’s list are placed here, between 1852 and 1942.

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

  6. Oceania · University of Sydney

    1852

    The University of Sydney, Australia's oldest university, is inaugurated in Sydney.

    On the map: University of Sydney.

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

    Wikipedia: University of Sydney

  7. 11 October

    North America#

    Three events from the day’s list are placed here, between 1614 and 1987.

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

  8. North America · Washington, D.C.

    1987

    An estimated 750,000 people attended the "Great March" in Washington, D.C., to demand greater civil rights for the LGBT community.

    On the map: Washington, D.C..

    Wikipedia: Second National March on Washington for Lesbian and Gay Rights

  9. 11 October

    What the other Wikipedias remember#

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

  10. From Wikipedia in Spanish · Dueñas

    1469

    In Dueñas (Spain), King Ferdinand II of Aragon meets Isabella I of Castile, and they decide to marry (they will become the Catholic Monarchs).

    On the map: Dueñas.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Dueñas

  11. 11 October

    Born on 11 October#

    The English Wikipedia lists 239 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 11 October

    1885

    François Mauriac, French novelist, poet, and playwright, Nobel Prize laureate (died 1970)

    Place of birth: Bordeaux.

    Wikipedia: François Mauriac

  13. Born on 11 October

    1992

    Cardi B, American rapper

    Place of birth: Washington Heights.

    Wikipedia: Cardi B

  14. Born on 11 October

    1937

    Bobby Charlton, English footballer and manager (died 2023)

    Place of birth: Ashington.

    Wikipedia: Bobby Charlton

  15. Born on 11 October

    1758

    Heinrich Wilhelm Matthias Olbers, German physician and astronomer (died 1840)

    Place of birth: Arbergen.

    Wikipedia: Heinrich Wilhelm Matthias Olbers

  16. Born on 11 October

    1896

    Roman Jakobson, Russian-American linguist and theorist (died 1982)

    Place of birth: Moscow.

    Wikipedia: Roman Jakobson

  17. Born in Britain and Ireland

    1872

    Emily Davison, English educator and activist (died 1913)

    Place of birth: Blackheath.

    Wikipedia: Emily Davison

  18. Born in Britain and Ireland

    1969

    Stephen Moyer, English actor

    Place of birth: Brentwood.

    Wikipedia: Stephen Moyer

  19. Born in Britain and Ireland

    1957

    Dawn French, Welsh-English actress, comedian and screenwriter

    Place of birth: Holyhead.

    Wikipedia: Dawn French

  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 11 October

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 23 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. 944

    Caliph al-Muttaqi is blinded and deposed by the Turkish general Tuzun.

    no place on the mapWikipedia: Al-Muttaqi
  2. 1138

    A massive earthquake strikes Aleppo; it is one of the most destructive earthquakes ever.

    Asia · 1138 Aleppo earthquakeWikipedia: 1138 Aleppo earthquake
  3. 1142

    A peace treaty ends the Jin–Song wars.

  4. 1311

    The peerage and clergy restrict the authority of English kings with the Ordinances of 1311.

    Britain & Ireland · EnglandWikipedia: England
  5. 1531

    The five Catholic cantons defeat the Protestant canton of Zurich in the battle of Kappel.

    Europe · Canton of ZurichWikipedia: Second War of Kappel
  6. 1614

    The New Netherland Company applies to the States General of the Netherlands for exclusive trading rights in what is now the northeastern United States.

    North America · New NetherlandWikipedia: New Netherland Company
  7. 1634

    The Burchardi flood kills around 15,000 in North Friesland, Denmark and Germany.

    no place on the mapWikipedia: Burchardi flood
  8. 1643

    A Parliamentarian cavalry force defeats a Royalist cavalry force in the battle of Winceby.

    Britain & Ireland · Battle of WincebyWikipedia: Battle of Winceby
  9. 1649

    Cromwell's New Model Army sacks Wexford, killing over 2,000 Irish Confederate troops and 1,500 civilians.

    Britain & Ireland · Sack of WexfordWikipedia: Sack of Wexford
  10. 1776

    American Revolution: A fleet of American boats on Lake Champlain is defeated by the Royal Navy, but delays the British advance until 1777.

    North America · Battle of Valcour IslandWikipedia: American Revolution
  11. 1797

    The Royal Navy decisively defeats the Batavian Navy at Camperdown during the French Revolutionary Wars.

    Europe · Battle of CamperdownWikipedia: Battle of Camperdown
  12. 1811

    The Juliana begins operation as the first steam-powered ferry in New York harbor.

    no place on the mapWikipedia: John Stevens
  13. 1840

    The Maronite leader Bashir Shihab II surrenders to the Ottoman Empire and later is sent to Malta in exile.

    Asia · Ottoman EmpireWikipedia: Bashir Shihab II
  14. 1852

    The University of Sydney, Australia's oldest university, is inaugurated in Sydney.

    Oceania · University of SydneyWikipedia: University of Sydney
  15. 1862

    American Civil War: Confederate troops conduct a raid on Chambersburg, Pennsylvania.

  16. 1865

    Hundreds of black men and women march in Jamaica, starting the Morant Bay rebellion.

    Latin America · Morant Bay rebellionWikipedia: Morant Bay rebellion
  17. 1890

    In Washington, D.C., the Daughters of the American Revolution is founded.

  18. 1899

    The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.

    no place on the mapWikipedia: Second Boer War
  19. 1906

    San Francisco sparks a diplomatic crisis between the United States and Japan by ordering segregated schools for Japanese students.

  20. 1910

    Piloted by Arch Hoxsey, Theodore Roosevelt becomes the first U.S. president to fly in an airplane.

    no place on the mapWikipedia: Archibald Hoxsey
  21. 1912

    First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.

    Europe · Battle of SarantaporoWikipedia: Battle of Sarantaporo
  22. 1918

    The 7.1 Mw San Fermín earthquake shakes Puerto Rico. The quake and resulting tsunami kill up to 116 people.

    Latin America · 1918 San Fermín earthquakeWikipedia: 1918 San Fermín earthquake
  23. 1937

    The Duke and Duchess of Windsor tour Nazi Germany for 12 days and meet Adolf Hitler on 22 October.

  24. 1941

    Beginning of the National Liberation War of Macedonia.

  25. 1942

    World War II: Off Guadalcanal, United States Navy ships intercept and defeat a Japanese force.

    Oceania · Battle of Cape EsperanceWikipedia: World War II
  26. 1944

    The Tuvan People's Republic is annexed by the Soviet Union.

    Asia · Tuvan People's RepublicWikipedia: Tuvan People's Republic
  27. 1950

    CBS's field-sequential color system for television is the first to be licensed for broadcast by the U.S. Federal Communications Commission.

  28. 1954

    In accord with the 1954 Geneva Conference, French troops complete their withdrawal from North Vietnam.

    Europe · GenevaWikipedia: 1954 Geneva Conference
  29. 1958

    NASA launches Pioneer 1, its first space probe, although it fails to achieve a stable orbit.

    no place on the mapWikipedia: Pioneer 1
  30. 1962

    The Second Vatican Council becomes the first ecumenical council of the Roman Catholic Church in 92 years.

  31. 1968

    NASA launches Apollo 7, the first successful crewed Apollo mission.

    no place on the mapWikipedia: Apollo 7
  32. 1973

    Typhoon Nora, the fourth-most intense tropical cyclone on record, dissipated after killing 40 people and leaving more than a million homeless across Taiwan and the Philippines.

    no place on the mapWikipedia: Typhoon Nora
  33. 1976

    George Washington is posthumously promoted to the grade of General of the Armies.

    no place on the mapWikipedia: George Washington
  34. 1982

    The hull of the Mary Rose is recovered, over four hundred years after her sinking during the battle of the Solent.

    Britain & Ireland · Battle of the SolentWikipedia: Battle of the Solent
  35. 1984

    Aboard the Space Shuttle Challenger, astronaut Kathryn D. Sullivan becomes the first American woman to perform a space walk.

  36. 1984

    Aeroflot Flight 3352 crashes into maintenance vehicles upon landing in Omsk, Russia, killing 178.

    Asia · Aeroflot Flight 3352Wikipedia: Aeroflot Flight 3352
  37. 1986

    Ronald Reagan and Mikhail Gorbachev meet in Iceland to continue discussions about scaling back IRBM arsenals in Europe.

    Europe · Reykjavík SummitWikipedia: Reykjavík Summit
  38. 1987

    An estimated 750,000 people attended the "Great March" in Washington, D.C., to demand greater civil rights for the LGBT community.

    North America · Washington, D.C.Wikipedia: Second National March on Washington for Lesbian and Gay Rights
  39. 1987

    Start of Operation Pawan by Indian forces in Sri Lanka. Thousands of civilians, insurgents, soldiers die.

    Asia · Jaffna PeninsulaWikipedia: Operation Pawan
  40. 1987

    The AIDS Memorial Quilt is first displayed during the Second National March on Washington for Lesbian and Gay Rights.

  41. 1991

    Prof. Anita Hill delivers her televised testimony concerning sexual harassment during the Clarence Thomas Supreme Court nomination.

    no place on the mapWikipedia: Anita Hill
  42. 1999

    Air Botswana pilot Chris Phatswe steals an ATR 42 from Sir Seretse Khama International Airport and later crashes it into two other aircraft at the airport, killing himself.

    Africa · 1999 Air Botswana ATR 42 crashWikipedia: 1999 Air Botswana ATR 42 crash
  43. 2000

    NASA launches STS-92, the 100th Space Shuttle mission.

    no place on the mapWikipedia: STS-92
  44. 2001

    The Polaroid Corporation files for federal bankruptcy protection.

  45. 2002

    A bomb attack in a Myyrmanni shopping mall in Vantaa, Finland kills seven.

    Europe · Myyrmanni bombingWikipedia: Myyrmanni bombing
  46. 2013

    A migrant boat sinks in the Channel of Sicily, with at least 359 people drowning.

    Europe · 2013 Lampedusa migrant shipwreckWikipedia: 2013 Lampedusa migrant shipwreck
  47. 2018

    Soyuz MS-10, launching an intended crew for the ISS, suffers an in-flight abort. The crew lands safely.

    no place on the mapWikipedia: Soyuz MS-10

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 were translated for this page.

  1. 1469

    In Dueñas (Spain), King Ferdinand II of Aragon meets Isabella I of Castile, and they decide to marry (they will become the Catholic Monarchs).

    Europe · DueñasTranslated from the list on Wikipedia in SpanishWikipedia: Dueñas

Who was born on 11 October

In order of how many Wikipedia editions have an article about each. The first 60 of 239 are shown.

  1. 1884

    Eleanor Roosevelt, American humanitarian and politician, 32nd First Lady of the United States (died 1962)

    ManhattanWikipedia: Eleanor Roosevelt
  2. 1942

    Amitabh Bachchan, Indian film actor, producer, television host, and former politician

    PrayagrajWikipedia: Amitabh Bachchan
  3. 1885

    François Mauriac, French novelist, poet, and playwright, Nobel Prize laureate (died 1970)

    BordeauxWikipedia: François Mauriac
  4. 1992

    Cardi B, American rapper

    Washington HeightsWikipedia: Cardi B
  5. 1937

    Bobby Charlton, English footballer and manager (died 2023)

    AshingtonWikipedia: Bobby Charlton
  6. 1758

    Heinrich Wilhelm Matthias Olbers, German physician and astronomer (died 1840)

  7. 1896

    Roman Jakobson, Russian-American linguist and theorist (died 1982)

    MoscowWikipedia: Roman Jakobson
  8. 1884

    Friedrich Bergius, German-Argentinian chemist and academic, Nobel Prize laureate (died 1949)

    ZłotnikiWikipedia: Friedrich Bergius
  9. 1926

    Thích Nhất Hạnh, Vietnamese monk, author, and poet (died 2022)

    HuếWikipedia: Thích Nhất Hạnh
  10. 1947

    Lucas Papademos, Greek economist and politician, 183rd Prime Minister of Greece

    AthensWikipedia: Lucas Papademos
  11. 1985

    Michelle Trachtenberg, American actress (died 2025)

    New York CityWikipedia: Michelle Trachtenberg
  12. 1739

    Grigory Potemkin, Russian general and politician (died 1791)

    ChizhevoWikipedia: Grigory Potemkin
  13. 1962

    Joan Cusack, American actress

    New York CityWikipedia: Joan Cusack
  14. 1966

    Luke Perry, American actor and producer (died 2019)

    MansfieldWikipedia: Luke Perry
  15. 1976

    Emily Deschanel, American actress and producer

    Los AngelesWikipedia: Emily Deschanel
  16. 1881

    Hans Kelsen, Czech-American jurist and philosopher (died 1973)

    PragueWikipedia: Hans Kelsen
  17. 1967

    Peter Thiel, German and American entrepreneur, venture capitalist, and political activist

    FrankfurtWikipedia: Peter Thiel
  18. 1671

    Frederick IV of Denmark (died 1730)

    Copenhagen CastleWikipedia: Frederick IV of Denmark
  19. 1977

    Matt Bomer, American actor and producer

    Webster GrovesWikipedia: Matt Bomer
  20. 1953

    David Morse, American actor, director, producer, and screenwriter

    BeverlyWikipedia: David Morse
  21. 1948

    Peter Turkson, Ghanaian cardinal

    Nsuta WassaWikipedia: Peter Turkson
  22. 1954

    Vojislav Šešelj, Serbian lawyer and politician, Deputy Prime Minister of Serbia

    SarajevoWikipedia: Vojislav Šešelj
  23. 1905

    Fred Trump, American real estate entrepreneur (died 1999)

    The BronxWikipedia: Fred Trump
  24. 1738

    Arthur Phillip, English admiral and politician, 1st Governor of New South Wales (died 1814)

    LondonWikipedia: Arthur Phillip
  25. 1925

    Elmore Leonard, American novelist, short story writer, and screenwriter (died 2013)

    New OrleansWikipedia: Elmore Leonard
  26. 1967

    Artie Lange, American actor and comedian

    LivingstonWikipedia: Artie Lange
  27. 1918

    Jerome Robbins, American director, producer, and choreographer (died 1998)

    New York CityWikipedia: Jerome Robbins
  28. 1939

    Maria Bueno, Brazilian tennis player (died 2018)

    São PauloWikipedia: Maria Bueno
  29. 1956

    Nicanor Duarte, Paraguayan lawyer and politician, President of Paraguay

    Coronel OviedoWikipedia: Nicanor Duarte
  30. 1968

    Jane Krakowski, American actress and singer

    Parsippany-Troy HillsWikipedia: Jane Krakowski
  31. 1990

    Sebastian Rode, German footballer

    Seeheim-JugenheimWikipedia: Sebastian Rode
  32. 1872

    Emily Davison, English educator and activist (died 1913)

    BlackheathWikipedia: Emily Davison
  33. 1919

    Art Blakey, American drummer and bandleader (died 1990)

    PittsburghWikipedia: Art Blakey
  34. 1946

    Sawao Katō, Japanese gymnast

    NiigataWikipedia: Sawao Katō
  35. 1950

    Patty Murray, American educator and politician

    BothellWikipedia: Patty Murray
  36. 1616

    Andreas Gryphius, German poet and playwright (died 1664)

    GłogówWikipedia: Andreas Gryphius
  37. 1951

    Jean-Jacques Goldman, French singer-songwriter and guitarist

    ParisWikipedia: Jean-Jacques Goldman
  38. 1993

    Brandon Flynn, American actor

    MiamiWikipedia: Brandon Flynn
  39. 1927

    Princess Joséphine Charlotte of Belgium (died 2005)

    Royal Palace of BrusselsWikipedia: Princess Joséphine-Charlotte of Belgium
  40. 1969

    Stephen Moyer, English actor

    BrentwoodWikipedia: Stephen Moyer
  41. 1985

    Nesta Carter, Jamaican sprinter

    Banana GroundWikipedia: Nesta Carter
  42. 1991

    Toby Fox, American video game developer and composer

    ManchesterWikipedia: Toby Fox
  43. 1902

    Jayaprakash Narayan, Indian activist and politician (died 1979)

    BalliaWikipedia: Jayaprakash Narayan
  44. 1957

    Dawn French, Welsh-English actress, comedian and screenwriter

    HolyheadWikipedia: Dawn French
  45. 2001

    Daniel Maldini, Italian footballer

    MilanWikipedia: Daniel Maldini
  46. 1982

    Mauricio Victorino, Uruguayan footballer

    MontevideoWikipedia: Mauricio Victorino
  47. 1965

    Sean Patrick Flanery, American actor and producer

    Lake CharlesWikipedia: Sean Patrick Flanery
  48. 1965

    Lennie James, English actor

    NottinghamWikipedia: Lennie James
  49. 1844

    Henry J. Heinz, American businessman, founded the H. J. Heinz Company (died 1919)

    BirminghamWikipedia: Henry J. Heinz
  50. 1969

    Prince Constantijn of the Netherlands

    University Medical Center UtrechtWikipedia: Prince Constantijn of the Netherlands
  51. 1970

    Shin Tae-yong, South Korean footballer and coach

    Yeongdeok CountyWikipedia: Shin Tae-yong
  52. 1996

    Rhea Ripley, Australian wrestler

    AdelaideWikipedia: Rhea Ripley
  53. 1924

    Mal Whitfield, American athlete (died 2015)

    Bay CityWikipedia: Mal Whitfield
  54. 1971

    Justin Lin, American film director

    TaipeiWikipedia: Justin Lin
  55. 1988

    Omar Gonzalez, American soccer player

    DallasWikipedia: Omar Gonzalez
  56. 1675

    Samuel Clarke, English minister and philosopher (died 1729)

    NorwichWikipedia: Samuel Clarke
  57. 1782

    Steen Steensen Blicher, Danish author and poet (died 1848)

  58. 1928

    Alfonso de Portago, Spanish race car driver and bobsledder (died 1957)

    LondonWikipedia: Alfonso de Portago
  59. 1936

    C. Gordon Fullerton, American colonel, engineer, and astronaut (died 2013)

    RochesterWikipedia: C. Gordon Fullerton
  60. 1943

    John Nettles, English actor and writer

    St AustellWikipedia: John Nettles

What is celebrated on 11 October

  • Christian feast days: Agilbert
  • Christian feast days: Alexander Sauli
  • Christian feast days: Andronicus, Probus, and Tarachus (Roman Catholic Church)
  • Christian feast days: Æthelburh of Barking
  • Christian feast days: Bruno the Great
  • Christian feast days: Cainnech of Aghaboe
  • Christian feast days: Gratus of Oloron
  • Christian feast days: Gummarus
  • Christian feast days: James the Deacon (Church of England, Roman Catholic Church, Eastern Orthodox Church)
  • Christian feast days: Lommán of Trim
  • Christian feast days: Maria Soledad Torres y Acosta
  • Christian feast days: Nicasius, Quirinus, Scubiculus, and Pientia
  • Christian feast days: Philip the Evangelist
  • Christian feast days: Pope John XXIII (Roman Catholic Church)

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