A day on the globeROENES中文
The Earth on 13 March, with the rays of the day’s events
  1. A birthday on the globe

    13 March on the globe: what happened in the world on this day, and who was born

    For 13 March, the English Wikipedia lists 51 events and 175 births. 36 of the events stand at their places as rays of light; one more is a dashed circle, where the sentence links only to a country or a sea. The taller the ray, the longer ago it happened. The people born that day come further down, as blue points.

    A birthday, yours or someone else’s:

  2. The Earth on 13 March

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

    On 13 March the Sun passes straight overhead at noon along the parallel of 2.7° south. In London, the day lasts about 11 hours 45 minutes.

    Beyond 87° south the Sun no longer sets; beyond 87° 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. 13 March

    Britain and Ireland#

    Three events from the day’s list are placed here, between 1985 and 2002.

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

  4. Britain & Ireland · Sutton Hoo

    2002

    The Sutton Hoo visitor centre, featuring Rick Kirby's sculpture Sutton Hoo Helmet was unveiled by Nobel laureate Seamus Heaney.

    On the map: Sutton Hoo.

    Wikipedia: Sutton Hoo Helmet

  5. 13 March

    Europe#

    14 events from the day’s list are placed here, between 1567 and 2015.

    The globe stops at three of them; the whole list is further down. All 14

  6. Europe · Leipzig

    1845

    Felix Mendelssohn's Violin Concerto receives its première performance in Leipzig with Ferdinand David as soloist.

    On the map: Leipzig.

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

    Wikipedia: Felix Mendelssohn

  7. Europe · 1986 Black Sea incident

    1986

    Claiming the right of innocent passage, the American warships Yorktown and Caron entered Soviet territorial waters in the Black Sea.

    On the map: the coordinates Wikidata gives for the article “1986 Black Sea incident”.

    Wikipedia: 1986 Black Sea incident

  8. Europe · 2013 conclave

    2013

    The 2013 papal conclave elects Cardinal Jorge Mario Bergoglio taking the name Pope Francis as the 266th Pope of the Catholic Church.

    On the map: the coordinates Wikidata gives for the article “2013 conclave”.

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

    Wikipedia: 2013 conclave

  9. 13 March

    Asia#

    Seven events from the day’s list are placed here, between 624 and 2016.

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

  10. Asia · Kemalpaşa

    1261

    The Byzantine Empire and the Republic of Genoa sign a permanent treaty against the Venetians at Nymphaeum.

    On the map: Kemalpaşa.

    Wikipedia: Treaty of Nymphaeum

  11. Asia · Aomori

    1988

    The Seikan Tunnel, the longest tunnel in the world with an undersea segment, opens between Aomori and Hakodate, Japan.

    On the map: Aomori.

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

    Wikipedia: Aomori

  12. 13 March

    Latin America and the Caribbean#

    Three events from the day’s list are placed here, between 1697 and 1957.

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

  13. Latin America · Museum of the Revolution

    1957

    Cuban student revolutionaries storm the presidential palace in Havana in a failed attempt on the life of President Fulgencio Batista.

    On the map: Museum of the Revolution.

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

    Wikipedia: Cuba

  14. 13 March

    North America#

    Six events from the day’s list are placed here, between 1639 and 2020.

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

  15. North America · Harvard College

    1639

    Harvard College is named after clergyman John Harvard.

    On the map: Harvard College.

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

    Wikipedia: Harvard College

  16. North America · Lowell Observatory

    1930

    The news of the discovery of Pluto is announced by Lowell Observatory.

    On the map: Lowell Observatory.

    Wikipedia: Pluto

  17. 13 March

    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.

  18. From Wikipedia in Spanish · Seville

    1841

    In Spain, the Seville to Cádiz railway is inaugurated.

    On the map: Seville.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Sevilla

  19. 13 March

    Born on 13 March#

    The English Wikipedia lists 175 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.

  20. Born on 13 March

    1942

    Mahmoud Darwish, Palestinian poet and author (died 2008)

    Place of birth: Al-Birwa.

    Wikipedia: Mahmoud Darwish

  21. Born on 13 March

    1899

    John Hasbrouck Van Vleck, American physicist and mathematician, Nobel Prize laureate (died 1980)

    Place of birth: Middletown.

    Wikipedia: John Hasbrouck Van Vleck

  22. Born on 13 March

    1781

    Karl Friedrich Schinkel, German painter and architect, designed the Konzerthaus Berlin (died 1841)

    Place of birth: Neuruppin.

    Wikipedia: Karl Friedrich Schinkel

  23. Born on 13 March

    1855

    Percival Lowell, American astronomer and mathematician (died 1916)

    Wikipedia: Percival Lowell

  24. Born on 13 March

    1950

    William H. Macy, American actor, director, and screenwriter

    Place of birth: Miami.

    Wikipedia: William H. Macy

  25. Born in Britain and Ireland

    1993

    Tyrone Mings, English footballer

    Place of birth: Bath.

    Wikipedia: Tyrone Mings

  26. Born in Britain and Ireland

    1960

    Adam Clayton, English-Irish musician and songwriter

    Place of birth: Chinnor.

    Wikipedia: Adam Clayton

  27. Born in Britain and Ireland

    1975

    Mark Clattenburg, English football referee

    Place of birth: Consett.

    Wikipedia: Mark Clattenburg

  28. 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 13 March

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 14 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. 222

    Roman emperor Elagabalus is murdered alongside his mother, Julia Soaemias. He is replaced by his 14-year old cousin, Severus Alexander.

    no place on the mapWikipedia: Elagabalus
  2. 483

    Election of Pope Felix III following the death of Pope Simplicius earlier that month.

    no place on the mapWikipedia: Pope Felix III
  3. 624

    The Battle of Badr, the first major battle between the Muslims and Quraysh.

    Asia · Battle of BadrWikipedia: Battle of Badr
  4. 1261

    The Byzantine Empire and the Republic of Genoa sign a permanent treaty against the Venetians at Nymphaeum.

    Asia · KemalpaşaWikipedia: Treaty of Nymphaeum
  5. 1323

    Siege of Warangal: Sultan Ghiyath al-Din Tughluq sends an expeditionary army led by his son, Muhammad bin Tughluq, to the Kakatiya capital Warangal – after ruler Prataparudra has refused to make tribute payments. He besieges the city and finally, after a campaign of 8 months, Prataparudra surrenders on November 9.

    Asia · Siege of WarangalWikipedia: Siege of Warangal
  6. 1567

    The Battle of Oosterweel, traditionally regarded as the start of the Eighty Years' War.

    Europe · Battle of OosterweelWikipedia: Battle of Oosterweel
  7. 1591

    At the Battle of Tondibi in Mali, Moroccan forces of the Saadi dynasty, led by Judar Pasha, defeat the Songhai Empire, despite being outnumbered by at least five to one.

    no place on the mapWikipedia: Battle of Tondibi
  8. 1639

    Harvard College is named after clergyman John Harvard.

    North America · Harvard CollegeWikipedia: Harvard College
  9. 1697

    Nojpetén, capital of the last independent Maya kingdom, falls to Spanish conquistadors, the final step in the Spanish conquest of Guatemala.

    Latin America · NojpeténWikipedia: Spanish conquest of Guatemala
  10. 1741

    The Battle of Cartagena de Indias (part of the War of Jenkins' Ear) begins.

    Latin America · Battle of Cartagena de IndiasWikipedia: Battle of Cartagena de Indias
  11. 1781

    William Herschel discovers Uranus.

    no place on the mapWikipedia: William Herschel
  12. 1809

    Gustav IV Adolf of Sweden is deposed in the Coup of 1809.

    no place on the mapWikipedia: Gustav IV Adolf
  13. 1811

    A French and Italian fleet is defeated by a British squadron off the island of Vis in the Adriatic during the Napoleonic Wars.

    Europe · Battle of LissaWikipedia: Battle of Lissa
  14. 1815

    Participants at the Congress of Vienna declare Napoleon an outlaw following his escape from Elba.

    Europe · Congress of ViennaWikipedia: Congress of Vienna
  15. 1825

    Pope Leo XII publishes the apostolic constitution Quo Graviora in which he renewed the prohibition on Catholics joining freemasonry.

    no place on the mapWikipedia: Pope Leo XII
  16. 1845

    Felix Mendelssohn's Violin Concerto receives its première performance in Leipzig with Ferdinand David as soloist.

    Europe · LeipzigWikipedia: Felix Mendelssohn
  17. 1848

    Klemens von Metternich was forced to resign as the foreign minister of Austria following student demonstrations in Vienna.

    Europe · ViennaWikipedia: Klemens von Metternich
  18. 1848

    The German revolutions of 1848–1849 begin in Vienna.

    Europe · German ConfederationWikipedia: German revolutions of 1848–1849
  19. 1862

    The Act Prohibiting the Return of Slaves is passed by the United States Congress, effectively annulling the Fugitive Slave Act of 1850 and setting the stage for the Emancipation Proclamation.

    North America · United States CongressWikipedia: Emancipation Proclamation
  20. 1884

    The Siege of Khartoum begins. It lasts until January 26, 1885.

    Africa · Siege of KhartoumWikipedia: Siege of Khartoum
  21. 1888

    The eruption of Ritter Island triggers tsunamis that kill up to 3,000 people on nearby islands.

    Oceania · 1888 Ritter Island eruption and tsunamiWikipedia: 1888 Ritter Island eruption and tsunami
  22. 1900

    British forces occupy Bloemfontein, Orange Free State, during the Second Boer War.

    Africa · BloemfonteinWikipedia: Second Boer War
  23. 1920

    The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.

    Europe · BerlinWikipedia: Kapp Putsch
  24. 1930

    The news of the discovery of Pluto is announced by Lowell Observatory.

    North America · Lowell ObservatoryWikipedia: Pluto
  25. 1940

    The Winter War between Finland and the Soviet Union officially ends after the signing of the Moscow Peace Treaty.

    Europe · Moscow Peace TreatyWikipedia: Moscow Peace Treaty
  26. 1943

    The Holocaust: German forces liquidate the Jewish ghetto in Kraków.

    Europe · Kraków GhettoWikipedia: The Holocaust
  27. 1954

    The Battle of Điện Biên Phủ begins with an artillery barrage by Viet Minh forces under Võ Nguyên Giáp; Viet Minh victory led to the end of the First Indochina War and French withdrawal from Vietnam.

    Asia · Battle of Dien Bien PhuWikipedia: Battle of Dien Bien Phu
  28. 1957

    Cuban student revolutionaries storm the presidential palace in Havana in a failed attempt on the life of President Fulgencio Batista.

    Latin America · Museum of the RevolutionWikipedia: Cuba
  29. 1964

    Kitty Genovese is murdered in New York City, prompting research into the bystander effect due to the false story that neighbors witnessed the killing and did nothing to help her.

    North America · Murder of Kitty GenoveseWikipedia: Murder of Kitty Genovese
  30. 1969

    Apollo 9 returns safely to Earth after testing the Lunar Module.

    no place on the mapWikipedia: Apollo 9
  31. 1974

    Sierra Pacific Airlines Flight 802 crashes into the White Mountains near Bishop, California, killing 36.

    North America · Sierra Pacific Airlines Flight 802Wikipedia: Sierra Pacific Airlines Flight 802
  32. 1979

    The New Jewel Movement, headed by Maurice Bishop, ousts the Prime Minister of Grenada, Eric Gairy, in a coup d'état.

  33. 1985

    One of England's worst incidents of football hooliganism occurred when supporters of Luton Town and Millwall rioted before a match at Kenilworth Road stadium.

    Britain & Ireland · Kenilworth RoadWikipedia: 1985 Luton riot
  34. 1986

    Claiming the right of innocent passage, the American warships Yorktown and Caron entered Soviet territorial waters in the Black Sea.

    Europe · 1986 Black Sea incidentWikipedia: 1986 Black Sea incident
  35. 1988

    The Seikan Tunnel, the longest tunnel in the world with an undersea segment, opens between Aomori and Hakodate, Japan.

    Asia · AomoriWikipedia: Aomori
  36. 1989

    Space Shuttle Discovery launches on STS-29 carrying the TDRS-4 satellite.

  37. 1992

    The Mw 6.6 Erzincan earthquake strikes eastern Turkey with a maximum Mercalli intensity of VIII (Severe).

    Asia · 1992 Erzincan earthquakeWikipedia: 1992 Erzincan earthquake
  38. 1993

    The 1993 Storm of the Century affects the eastern United States, dropping feet of snow in many areas.

  39. 1996

    The Dunblane massacre leads to the death of sixteen primary school children and one teacher in Dunblane, Scotland.

    Britain & Ireland · Dunblane massacreWikipedia: Dunblane massacre
  40. 1997

    The Missionaries of Charity choose Sister Nirmala to succeed Mother Teresa as their leader.

  41. 2002

    The Sutton Hoo visitor centre, featuring Rick Kirby's sculpture Sutton Hoo Helmet was unveiled by Nobel laureate Seamus Heaney.

    Britain & Ireland · Sutton HooWikipedia: Sutton Hoo Helmet
  42. 2003

    An article in Nature identifies the Ciampate del Diavolo as 350,000-year-old hominid footprints.

    Europe · Ciampate del DiavoloWikipedia: Nature
  43. 2004

    The Filipino singer Rachelle Ann Go won the reality talent show Search for a Star, performing a cover of Mariah Carey's "Through the Rain" in the grand final.

    no place on the mapWikipedia: Rachelle Ann Go
  44. 2012

    The Sierre coach crash kills 28 people, including 22 children.

    Europe · Sierre coach crashWikipedia: Sierre coach crash
  45. 2013

    The 2013 papal conclave elects Cardinal Jorge Mario Bergoglio taking the name Pope Francis as the 266th Pope of the Catholic Church.

    Europe · 2013 conclaveWikipedia: 2013 conclave
  46. 2015

    Serbian Army Mi-17 helicopter crashes near Belgrade airport while transporting a 5-day-old baby with respiratory problems to hospital, killing all 7 on board.

    Europe · SurčinWikipedia: 2015 Belgrade helicopter crash
  47. 2016

    The Ankara bombing kills at least 37 people.

    Asia · March 2016 Ankara bombingWikipedia: March 2016 Ankara bombing
  48. 2016

    Three gunmen attack two hotels in the Ivory Coast town of Grand-Bassam, killing at least 19 people.

    Africa · Grand-Bassam shootingsWikipedia: Grand-Bassam shootings
  49. 2020

    Breonna Taylor is killed by police officers who were forcibly entering her home in Louisville, Kentucky; her death sparked extensive protests against racism and police brutality.

    North America · Killing of Breonna TaylorWikipedia: Killing of Breonna Taylor
  50. 2020

    Katerina Sakellaropoulou is sworn in as the first female President of Greece amid strict COVID-19 measures.

  51. 2020

    President Donald Trump declares the COVID-19 pandemic to be a national emergency in the United States.

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. 1841

    In Spain, the Seville to Cádiz railway is inaugurated.

    Europe · SevilleTranslated from the list on Wikipedia in SpanishWikipedia: Sevilla

Who was born on 13 March

In order of how many Wikipedia editions have an article about each. The first 60 of 175 are shown.

  1. 1900

    Giorgos Seferis, Greek poet and diplomat, Nobel Prize laureate (died 1971)

    UrlaWikipedia: Giorgos Seferis
  2. 1741

    Joseph II, Holy Roman Emperor (died 1790)

  3. 1615

    Innocent XII, pope of the Catholic Church (died 1700)

    SpinazzolaWikipedia: Pope Innocent XII
  4. 1942

    Mahmoud Darwish, Palestinian poet and author (died 2008)

    Al-BirwaWikipedia: Mahmoud Darwish
  5. 1899

    John Hasbrouck Van Vleck, American physicist and mathematician, Nobel Prize laureate (died 1980)

    MiddletownWikipedia: John Hasbrouck Van Vleck
  6. 1781

    Karl Friedrich Schinkel, German painter and architect, designed the Konzerthaus Berlin (died 1841)

    NeuruppinWikipedia: Karl Friedrich Schinkel
  7. 1855

    Percival Lowell, American astronomer and mathematician (died 1916)

  8. 1950

    William H. Macy, American actor, director, and screenwriter

    MiamiWikipedia: William H. Macy
  9. 1897

    Yeghishe Charents, Armenian poet and activist (died 1937)

    KarsWikipedia: Yeghishe Charents
  10. 1911

    L. Ron Hubbard, American author, founder of Scientology (died 1986)

    TildenWikipedia: L. Ron Hubbard
  11. 1913

    Sergey Mikhalkov, Russian author and playwright (died 2009)

    MoscowWikipedia: Sergey Mikhalkov
  12. 1973

    Edgar Davids, Surinamese-Dutch footballer and manager

    ParamariboWikipedia: Edgar Davids
  13. 1989

    Holger Badstuber, German footballer

    MemmingenWikipedia: Holger Badstuber
  14. 1989

    Marko Marin, German footballer

    GradiškaWikipedia: Marko Marin
  15. 1593

    Georges de La Tour, French painter (probable; (died 1652)

    Vic-sur-SeilleWikipedia: Georges de La Tour
  16. 1956

    Dana Delany, American actress and producer

    New York CityWikipedia: Dana Delany
  17. 1764

    Charles Grey, 2nd Earl Grey, English politician, Prime Minister of the United Kingdom (died 1845)

  18. 2004

    Coco Gauff, American tennis player

    Delray BeachWikipedia: Coco Gauff
  19. 1942

    Scatman John, American singer-songwriter (died 1999)

    El MonteWikipedia: Scatman John
  20. 1967

    Andrés Escobar, Colombian footballer (died 1994)

    Gilan ProvinceWikipedia: Andrés Escobar
  21. 1995

    Mikaela Shiffrin, American skier

    VailWikipedia: Mikaela Shiffrin
  22. 1860

    Hugo Wolf, Slovene-Austrian composer (died 1903)

    Slovenj GradecWikipedia: Hugo Wolf
  23. 1994

    Gerard Deulofeu, Spanish footballer

    RiudarenesWikipedia: Gerard Deulofeu
  24. 1864

    Alexej von Jawlensky, Russian-German painter (died 1941)

    TorzhokWikipedia: Alexej von Jawlensky
  25. 1985

    Emile Hirsch, American actor

    TopangaWikipedia: Emile Hirsch
  26. 1888

    Paul Morand, French author and diplomat (died 1976)

    8th arrondissement of ParisWikipedia: Paul Morand
  27. 1945

    Anatoly Fomenko, Russian mathematician and academic

    DonetskWikipedia: Anatoly Fomenko
  28. 1916

    Jacque Fresco, American engineer and academic (died 2017)

    BrooklynWikipedia: Jacque Fresco
  29. 1798

    Abigail Fillmore, American wife of Millard Fillmore, 14th First Lady of the United States (died 1853)

    Saratoga CountyWikipedia: Abigail Fillmore
  30. 1939

    Neil Sedaka, American singer-songwriter and pianist (died 2026)

    BrooklynWikipedia: Neil Sedaka
  31. 1993

    Tyrone Mings, English footballer

    BathWikipedia: Tyrone Mings
  32. 1898

    Henry Hathaway, American director and producer (died 1985)

    SacramentoWikipedia: Henry Hathaway
  33. 1955

    Bruno Conti, Italian footballer and manager

    NettunoWikipedia: Bruno Conti
  34. 1960

    Adam Clayton, English-Irish musician and songwriter

    ChinnorWikipedia: Adam Clayton
  35. 1720

    Charles Bonnet, Swiss historian and author (died 1793)

    GenevaWikipedia: Charles Bonnet
  36. 1372

    Louis I, Duke of Orléans (died 1407)

    Hôtel Saint-PolWikipedia: Louis I, Duke of Orléans
  37. 1899

    Pancho Vladigerov, Bulgarian pianist and composer (died 1978)

    ZurichWikipedia: Pancho Vladigerov
  38. 1972

    Common, American rapper and actor

    ChicagoWikipedia: Common
  39. 1946

    Yonatan Netanyahu, American-Israeli colonel (died 1976)

    New York CityWikipedia: Yonatan Netanyahu
  40. 1874

    Ellery Harding Clark, American jumper, coach, and lawyer (died 1949)

    West RoxburyWikipedia: Ellery Harding Clark
  41. 1884

    Hugh Walpole, New Zealand-English author and educator (died 1941)

    AucklandWikipedia: Hugh Walpole
  42. 1971

    Annabeth Gish, American actress

    AlbuquerqueWikipedia: Annabeth Gish
  43. 1976

    Danny Masterson, American actor and producer

    AlbertsonWikipedia: Danny Masterson
  44. 1987

    Andreas Beck, German footballer

    KemerovoWikipedia: Andreas Beck
  45. 1815

    James Curtis Hepburn, American physician, linguist, and missionary (died 1911)

    MiltonWikipedia: James Curtis Hepburn
  46. 1956

    Jamie Dimon, North-American businessman and banker

    New York CityWikipedia: Jamie Dimon
  47. 1975

    Mark Clattenburg, English football referee

    ConsettWikipedia: Mark Clattenburg
  48. 1763

    Guillaume Brune, French general and diplomat (died 1815)

    Brive-la-GaillardeWikipedia: Guillaume Brune
  49. 1992

    George MacKay, English actor

    HammersmithWikipedia: George MacKay
  50. 1992

    Ozuna, Puerto Rican singer-songwriter and rapper

    San JuanWikipedia: Ozuna
  51. 1825

    Hans Gude, Norwegian-German painter and academic (died 1903)

    NorwayWikipedia: Hans Gude
  52. 1957

    John Hoeven, American banker and politician, 31st Governor of North Dakota

    BismarckWikipedia: John Hoeven
  53. 1992

    Lucy Fry, Australian actress

    WooloowinWikipedia: Lucy Fry
  54. 1800

    Mustafa Reşid Pasha, Ottoman politician, 212th Grand Vizier of the Ottoman Empire (died 1858)

    IstanbulWikipedia: Mustafa Reşid Pasha
  55. 1973

    David Draiman, American singer-songwriter

    BrooklynWikipedia: David Draiman
  56. 1998

    Jack Harlow, American rapper, singer-songwriter, and actor

    LouisvilleWikipedia: Jack Harlow
  57. 1950

    Charles Krauthammer, American physician, journalist, and author (died 2018)

    ManhattanWikipedia: Charles Krauthammer
  58. 1974

    Thomas Enqvist, Swedish tennis player and sportscaster

    StockholmWikipedia: Thomas Enqvist
  59. 1980

    Caron Butler, American basketball player

    RacineWikipedia: Caron Butler
  60. 1925

    Roy Haynes, American drummer and composer (died 2024)

    Wikipedia: Roy Haynes

What is celebrated on 13 March

  • Christian feast days: Ansovinus
  • Christian feast days: Christina of Persia
  • Christian feast days: Gerald of Mayo
  • Christian feast days: James Theodore Holly (Episcopal Church (USA))
  • Christian feast days: Nicephorus
  • Christian feast days: Roderick
  • Christian feast days: March 13 (Eastern Orthodox liturgics)
  • Kasuga Matsuri (Kasuga Grand Shrine, Nara, Japan)
  • National Elephant Day (Thailand)
  • Africa Scout Day

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