A day on the globeROENES中文
The Earth on 24 July, with the rays of the day’s events
  1. A birthday on the globe

    24 July on the globe: what happened in the world on this day, and who was born

    For 24 July, the English Wikipedia lists 52 events and 174 births. 32 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 24 July

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

    On 24 July 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. 24 July

    Europe#

    Eight events from the day’s list are placed here, between 1132 and 1980.

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

  4. Europe · Olympiysky Sports Complex

    1980

    The Quietly Confident Quartet of Australia wins the men's 4 x 100 metre medley relay at the Moscow Olympics, the only time the United States has not won the swimming event at Olympic level.

    On the map: Olympiysky Sports Complex.

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

    Wikipedia: Australia at the 1980 Summer Olympics

  5. 24 July

    Latin America and the Caribbean#

    One event from the day’s list is placed here, in 1911.

  6. Latin America · Machu Picchu

    1911

    Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".

    On the map: Machu Picchu.

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

    Wikipedia: Machu Picchu

  7. 24 July

    North America#

    13 events from the day’s list are placed here, between 1701 and 1998.

    The globe stops at three of them; the whole list is further down. All 13

  8. North America · Fort Pontchartrain du Détroit

    1701

    Antoine de la Mothe Cadillac founds the trading post at Fort Pontchartrain, which later becomes the city of Detroit.

    On the map: Fort Pontchartrain du Détroit.

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

    Wikipedia: Antoine de la Mothe Cadillac

  9. North America · Salt Lake City

    1847

    After 17 months of travel, Brigham Young leads 148 Mormon pioneers into Salt Lake Valley, resulting in the establishment of Salt Lake City.

    On the map: Salt Lake City.

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

    Wikipedia: Brigham Young

  10. North America · Montreal City Hall

    1967

    During an official state visit to Canada, French President Charles de Gaulle declares to a crowd of over 100,000 in Montreal: Vive le Québec libre! ("Long live free Quebec!"); the statement angered the Canadian government and many Anglophone Canadians.

    On the map: Montreal City Hall.

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

    Wikipedia: Vive le Québec libre

  11. 24 July

    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 Romanian and were translated for this page.

  12. From Wikipedia in Romanian · Hagia Sophia

    2020

    The first Friday prayers are held at Hagia Sophia, marking the building's return to use as a mosque.

    On the map: Hagia Sophia.

    Translated from the list on Wikipedia in Romanian.

    The article on Wikipedia in Romanian: Hagia Sofia din Istanbul

  13. 24 July

    Born on 24 July#

    The English Wikipedia lists 174 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.

  14. Born on 24 July

    1802

    Alexandre Dumas, French novelist and playwright (died 1870)

    Place of birth: Villers-Cotterêts.

    Wikipedia: Alexandre Dumas

  15. Born on 24 July

    1969

    Jennifer Lopez, American actress, singer, and dancer

    Place of birth: The Bronx.

    Wikipedia: Jennifer Lopez

  16. Born on 24 July

    1897

    Amelia Earhart, American pilot and author (died 1937)

    Place of birth: Atchison.

    Wikipedia: Amelia Earhart

  17. Born on 24 July

    1857

    Henrik Pontoppidan, Danish journalist and author, Nobel Prize laureate (died 1943)

    Place of birth: Fredericia.

    Wikipedia: Henrik Pontoppidan

  18. Born on 24 July

    1895

    Robert Graves, English poet, novelist, critic (died 1985)

    Place of birth: Wimbledon.

    Wikipedia: Robert Graves

  19. Born in Britain and Ireland

    1725

    John Newton, English sailor and priest (died 1807)

    Place of birth: London.

    Wikipedia: John Newton

  20. Born in Britain and Ireland

    1966

    Martin Keown, English footballer and coach

    Place of birth: Oxford.

    Wikipedia: Martin Keown

  21. Born in Britain and Ireland

    1958

    Jim Leighton, Scottish footballer and coach

    Place of birth: Johnstone.

    Wikipedia: Jim Leighton

  22. 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 24 July

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 16 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. 1132

    Battle of Nocera between Ranulf II of Alife and Roger II of Sicily.

    Europe · Battle of NoceraWikipedia: Battle of Nocera
  2. 1148

    Louis VII of France lays siege to Damascus during the Second Crusade.

    Asia · Siege of DamascusWikipedia: Siege of Damascus
  3. 1304

    Wars of Scottish Independence: Fall of Stirling Castle: King Edward I of England takes the stronghold using the War Wolf.

  4. 1411

    Battle of Harlaw, one of the bloodiest battles in Scotland, takes place.

    Britain & Ireland · Battle of HarlawWikipedia: Battle of Harlaw
  5. 1412

    Behnam Hadloyo becomes Syriac Orthodox Patriarch of Mardin.

  6. 1487

    Citizens of Leeuwarden, Netherlands, strike against a ban on foreign beer.

    Europe · LeeuwardenWikipedia: Leeuwarden
  7. 1534

    French explorer Jacques Cartier plants a cross on the Gaspé Peninsula and takes possession of the territory in the name of Francis I of France.

    no place on the mapWikipedia: Jacques Cartier
  8. 1567

    Mary, Queen of Scots, is forced to abdicate and be replaced by her one-year-old son James VI.

  9. 1701

    Antoine de la Mothe Cadillac founds the trading post at Fort Pontchartrain, which later becomes the city of Detroit.

    North America · Fort Pontchartrain du DétroitWikipedia: Antoine de la Mothe Cadillac
  10. 1712

    War of the Spanish Succession: The French under Marshal Villars win a decisive victory over Eugene of Savoy at Denain.

    Europe · Battle of DenainWikipedia: Battle of Denain
  11. 1847

    After 17 months of travel, Brigham Young leads 148 Mormon pioneers into Salt Lake Valley, resulting in the establishment of Salt Lake City.

    North America · Salt Lake CityWikipedia: Brigham Young
  12. 1847

    Richard March Hoe, American inventor, patents the rotary-type printing press.

    no place on the mapWikipedia: Richard March Hoe
  13. 1864

    American Civil War: Battle of Kernstown: Confederate General Jubal Early defeats Union troops led by General George Crook in an effort to keep them out of the Shenandoah Valley.

    North America · Second Battle of KernstownWikipedia: American Civil War
  14. 1866

    Reconstruction: Tennessee becomes the first U.S. state to be readmitted to Congress following the American Civil War.

    North America · TennesseeWikipedia: Reconstruction era
  15. 1901

    O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.

    North America · Columbus, OhioWikipedia: O. Henry
  16. 1910

    The Ottoman Empire captures the city of Shkodër, putting down the Albanian Revolt of 1910.

    Europe · ShkodërWikipedia: Ottoman Empire
  17. 1911

    Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".

    Latin America · Machu PicchuWikipedia: Machu Picchu
  18. 1915

    The passenger ship SS Eastland capsizes while tied to a dock in the Chicago River. A total of 844 passengers and crew are killed in the largest loss of life disaster from a single shipwreck on the Great Lakes.

    North America · Great LakesWikipedia: SS Eastland
  19. 1920

    Franco-Syrian War: At the Battle of Maysalun, forces of the Arab Kingdom of Syria were defeated by a French army moving to occupy the territory allocated to them by the San Remo conference.

    Asia · Battle of MaysalunWikipedia: Battle of Maysalun
  20. 1922

    The draft of the British Mandate of Palestine is formally confirmed by the Council of the League of Nations; it came into effect on 26 September 1923.

    Asia · Mandatory PalestineWikipedia: Mandatory Palestine
  21. 1923

    The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.

    Europe · LausanneWikipedia: Treaty of Lausanne
  22. 1924

    Themistoklis Sofoulis becomes Prime Minister of Greece.

  23. 1927

    The Menin Gate war memorial is unveiled at Ypres.

    Europe · Menin GateWikipedia: Menin Gate
  24. 1929

    The Kellogg–Briand Pact, renouncing war as an instrument of foreign policy, goes into effect (it is first signed in Paris on August 27, 1928, by most leading world powers).

  25. 1935

    The Dust Bowl heat wave reaches its peak, sending temperatures to 109 °F (43 °C) in Chicago and 104 °F (40 °C) in Milwaukee.

    North America · ChicagoWikipedia: Dust Bowl
  26. 1943

    World War II: Operation Gomorrah begins: British and Canadian aeroplanes bomb Hamburg by night, and American planes bomb the city by day. By the end of the operation in November, 9,000 tons of explosives will have killed more than 30,000 people and destroyed 280,000 buildings.

    Europe · Bombing of Hamburg in World War IIWikipedia: Bombing of Hamburg in World War II
  27. 1948

    Australia set a world record for the highest successful run-chase in Test cricket history during the Fourth Test of the Ashes series against England.

  28. 1950

    Cape Canaveral Air Force Station begins operations with the launch of a Bumper rocket.

    North America · Cape Canaveral Space Force StationWikipedia: Cape Canaveral Space Force Station
  29. 1959

    At the opening of the American National Exhibition in Moscow, U.S. vice president Richard Nixon and Soviet premier Nikita Khrushchev have a "Kitchen Debate".

  30. 1963

    The ship Bluenose II is launched in Lunenburg, Nova Scotia. The schooner is a major Canadian symbol.

    North America · Lunenburg, Nova ScotiaWikipedia: Bluenose II
  31. 1966

    Michael Pelkey makes the first BASE jump from El Capitan along with Brian Schubert. Both came out with broken bones. BASE jumping has now been banned from El Cap.

    North America · El CapitanWikipedia: Michael Pelkey
  32. 1967

    During an official state visit to Canada, French President Charles de Gaulle declares to a crowd of over 100,000 in Montreal: Vive le Québec libre! ("Long live free Quebec!"); the statement angered the Canadian government and many Anglophone Canadians.

    North America · Montreal City HallWikipedia: Vive le Québec libre
  33. 1969

    Apollo program: Apollo 11 splashes down safely in the Pacific Ocean.

    no place on the mapWikipedia: Apollo program
  34. 1974

    The Metapolitefsi period began with Konstantinos Karamanlis taking office as Prime Minister of Greece after the collapse of the military junta.

    no place on the mapWikipedia: Greek junta
  35. 1974

    Watergate scandal: The United States Supreme Court unanimously rules that President Richard Nixon does not have the authority to withhold subpoenaed White House tapes and they order him to surrender the tapes to the Watergate special prosecutor.

    North America · Supreme Court of the United StatesWikipedia: Supreme Court of the United States
  36. 1977

    End of a four-day-long Libyan–Egyptian War.

  37. 1980

    The Quietly Confident Quartet of Australia wins the men's 4 x 100 metre medley relay at the Moscow Olympics, the only time the United States has not won the swimming event at Olympic level.

    Europe · Olympiysky Sports ComplexWikipedia: Australia at the 1980 Summer Olympics
  38. 1982

    Heavy rain causes a mudslide that destroys a bridge at Nagasaki, Japan, killing 299.

    Asia · NagasakiWikipedia: Nagasaki
  39. 1983

    George Brett, playing for the Kansas City Royals against the New York Yankees, has a game-winning home run nullified in the "Pine Tar Incident".

    no place on the mapWikipedia: George Brett
  40. 1983

    The Black July anti-Tamil riots begin in Sri Lanka, killing between 400 and 3,000. Black July is generally regarded as the beginning of the Sri Lankan Civil War.

    Asia · Sri LankaWikipedia: Black July
  41. 1987

    Hulda Crooks, at 91 years of age, climbs Mt. Fuji. Crooks became the oldest person to climb Japan's highest peak.

    no place on the mapWikipedia: Hulda Crooks
  42. 1987

    US supertanker SS Bridgeton collides with mines laid by IRGC, causing a 43-square-meter dent in the body of the oil tanker.

    Asia · Bridgeton incidentWikipedia: Bridgeton incident
  43. 1998

    Russell Eugene Weston Jr. bursts into the United States Capitol and opens fire, killing two police officers. He is later ruled to be incompetent to stand trial.

    North America · 1998 United States Capitol shootingWikipedia: 1998 United States Capitol shooting
  44. 1999

    Air Fiji flight 121 crashes while en route to Nadi, Fiji, killing all 17 people on board.

    Oceania · NadiWikipedia: Air Fiji Flight 121
  45. 2001

    The Bandaranaike Airport attack is carried out by 14 Tamil Tiger commandos, resulting in military and civilian casualties and destroyed aircraft.

    Asia · Bandaranaike Airport attackWikipedia: Bandaranaike Airport attack
  46. 2009

    Aria Air Flight 1525 crashes at Mashhad International Airport, killing 16.

    Asia · Aria Air Flight 1525Wikipedia: Aria Air Flight 1525
  47. 2012

    Syrian civil war: The People's Protection Units (YPG) capture the city of Girkê Legê.

    Asia · Al-MuabbadaWikipedia: Syrian civil war
  48. 2013

    Santiago de Compostela derailment: A high-speed train derails in Spain rounding a curve with an 80 km/h (50 mph) speed limit at 190 km/h (120 mph), killing 78 passengers.

  49. 2014

    Air Algérie Flight 5017 loses contact with air traffic controllers 50 minutes after takeoff. It was travelling between Ouagadougou, Burkina Faso and Algiers. The wreckage is later found in Mali. All 116 people on board are killed.

    Africa · Air Algérie Flight 5017Wikipedia: Air Algérie Flight 5017
  50. 2019

    Boris Johnson becomes Prime Minister of the United Kingdom after defeating Jeremy Hunt in a leadership contest, succeeding Theresa May.

  51. 2024

    A Saurya Airlines Bombardier CRJ200 crashes during takeoff from Tribhuvan International Airport in Kathmandu, Nepal, killing 18.

    Asia · 2024 Saurya Airlines Bombardier CRJ200 crashWikipedia: 2024 Saurya Airlines Bombardier CRJ200 crash
  52. 2025

    Angara Airlines Flight 2311 crashes on approach to Tynda Airport, killing all 48 people on board.

    Asia · Angara Airlines Flight 2311Wikipedia: Angara Airlines Flight 2311

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 Romanian and were translated for this page.

  1. 2020

    The first Friday prayers are held at Hagia Sophia, marking the building's return to use as a mosque.

    Asia · Hagia SophiaTranslated from the list on Wikipedia in RomanianWikipedia: Hagia Sofia din Istanbul

Who was born on 24 July

In order of how many Wikipedia editions have an article about each. The first 60 of 174 are shown.

  1. 1783

    Simón Bolívar, Venezuelan commander and politician, second President of Venezuela, and liberation leader for much of South America (died 1830)

    CaracasWikipedia: Simón Bolívar
  2. 1802

    Alexandre Dumas, French novelist and playwright (died 1870)

    Villers-CotterêtsWikipedia: Alexandre Dumas
  3. 1969

    Jennifer Lopez, American actress, singer, and dancer

    The BronxWikipedia: Jennifer Lopez
  4. 1897

    Amelia Earhart, American pilot and author (died 1937)

    AtchisonWikipedia: Amelia Earhart
  5. 1857

    Henrik Pontoppidan, Danish journalist and author, Nobel Prize laureate (died 1943)

    FredericiaWikipedia: Henrik Pontoppidan
  6. 1981

    Nayib Bukele, Salvadoran politician, 81st President of El Salvador

    San SalvadorWikipedia: Nayib Bukele
  7. 1895

    Robert Graves, English poet, novelist, critic (died 1985)

    WimbledonWikipedia: Robert Graves
  8. 1860

    Alphonse Mucha, Czech painter and illustrator (died 1939)

    IvančiceWikipedia: Alphonse Mucha
  9. 1982

    Anna Paquin, Canadian-New Zealand actress

    WinnipegWikipedia: Anna Paquin
  10. 1983

    Daniele De Rossi, Italian footballer and manager

    RomeWikipedia: Daniele De Rossi
  11. 1949

    Michael Richards, American actor and comedian

    Culver CityWikipedia: Michael Richards
  12. 1952

    Gus Van Sant, American director, producer, and screenwriter

    LouisvilleWikipedia: Gus Van Sant
  13. 1963

    Karl Malone, American basketball player and coach

    SummerfieldWikipedia: Karl Malone
  14. 1979

    Rose Byrne, Australian actress

    BalmainWikipedia: Rose Byrne
  15. 1982

    Elisabeth Moss, American actress

    Los AngelesWikipedia: Elisabeth Moss
  16. 1803

    Adolphe Adam, French composer and critic (died 1856)

    former 3rd arrondissement of ParisWikipedia: Adolphe Adam
  17. 1864

    Frank Wedekind, German actor and playwright (died 1918)

    HanoverWikipedia: Frank Wedekind
  18. 1946

    Gallagher, American comedian and actor (died 2022)

    Fort BraggWikipedia: Gallagher
  19. 1900

    Zelda Fitzgerald, American author, visual artist and ballet dancer (died 1948)

    MontgomeryWikipedia: Zelda Fitzgerald
  20. 1964

    Pedro Passos Coelho, Portuguese economist and politician, 118th Prime Minister of Portugal

    CoimbraWikipedia: Pedro Passos Coelho
  21. 1981

    Summer Glau, American actress

    San AntonioWikipedia: Summer Glau
  22. 1886

    Jun'ichirō Tanizaki, Japanese author (died 1965)

    Nihonbashi-kuWikipedia: Jun'ichirō Tanizaki
  23. 1968

    Kristin Chenoweth, American actress and singer

    Broken ArrowWikipedia: Kristin Chenoweth
  24. 1725

    John Newton, English sailor and priest (died 1807)

    LondonWikipedia: John Newton
  25. 1920

    Bella Abzug, American lawyer and politician (died 1998)

    New York CityWikipedia: Bella Abzug
  26. 1976

    Rashida Tlaib, American politician

    DetroitWikipedia: Rashida Tlaib
  27. 1892

    Alice Ball, African American chemist (developed treatment for leprosy) (died 1916)

    SeattleWikipedia: Alice Ball
  28. 1951

    Lynda Carter, American actress

    PhoenixWikipedia: Lynda Carter
  29. 1936

    Ruth Buzzi, American actress and comedian (died 2025)

    WesterlyWikipedia: Ruth Buzzi
  30. 1971

    Dino Baggio, Italian footballer

    CamposampieroWikipedia: Dino Baggio
  31. 1856

    Émile Picard, French mathematician and academic (died 1941)

    ParisWikipedia: Émile Picard
  32. 1945

    Azim Premji, Indian businessman and philanthropist

    MumbaiWikipedia: Azim Premji
  33. 1954

    Jorge Jesus, Portuguese footballer and manager

    AmadoraWikipedia: Jorge Jesus
  34. 1968

    Troy Kotsur, American actor

    MesaWikipedia: Troy Kotsur
  35. 1931

    Ermanno Olmi, Italian director, screenwriter, and cinematographer (died 2018)

    BergamoWikipedia: Ermanno Olmi
  36. 1964

    Barry Bonds, American baseball player

    RiversideWikipedia: Barry Bonds
  37. 1998

    Cailee Spaeny, American actress

    KnoxvilleWikipedia: Cailee Spaeny
  38. 1857

    Juan Vicente Gómez, Venezuelan general and politician, 27th President of Venezuela (died 1935)

    TáchiraWikipedia: Juan Vicente Gómez
  39. 1860

    Princess Charlotte of Prussia (died 1919)

    New PalaceWikipedia: Princess Charlotte of Prussia
  40. 1937

    Manoj Kumar, Indian actor, director, producer, and screenwriter (died 2025)

    AbbottabadWikipedia: Manoj Kumar
  41. 1971

    Patty Jenkins, American film director and screenwriter

    VictorvilleWikipedia: Patty Jenkins
  42. 1914

    Frances Oldham Kelsey, Canadian pharmacologist and physician (died 2015)

    Cobble HillWikipedia: Frances Oldham Kelsey
  43. 1921

    Giuseppe Di Stefano, Italian tenor and actor (died 2008)

    Motta Sant'AnastasiaWikipedia: Giuseppe Di Stefano
  44. 1953

    Claire McCaskill, American lawyer and politician

    RollaWikipedia: Claire McCaskill
  45. 1991

    Emily Bett Rickards, Canadian actress

    VancouverWikipedia: Emily Bett Rickards
  46. 1880

    Ernest Bloch, Swiss-American composer and educator (died 1959)

    GenevaWikipedia: Ernest Bloch
  47. 1942

    Chris Sarandon, American actor

    BeckleyWikipedia: Chris Sarandon
  48. 1966

    Martin Keown, English footballer and coach

    OxfordWikipedia: Martin Keown
  49. 1916

    John D. MacDonald, American colonel and author (died 1986)

    SharonWikipedia: John D. MacDonald
  50. 1987

    Mara Wilson, American actress

    BurbankWikipedia: Mara Wilson
  51. 1966

    Aminatou Haidar, Sahrawi human rights activist

    AkkaWikipedia: Aminatou Haidar
  52. 1975

    Torrie Wilson, American model, fitness competitor, actress and professional wrestler

    BoiseWikipedia: Torrie Wilson
  53. 1985

    Aries Merritt, American hurdler

    ChicagoWikipedia: Aries Merritt
  54. 1956

    Charlie Crist, American lawyer and politician, 44th Governor of Florida

    AltoonaWikipedia: Charlie Crist
  55. 1976

    Tiago Monteiro, Portuguese racing driver and manager

    PortoWikipedia: Tiago Monteiro
  56. 1985

    Lukáš Rosol, Czech tennis player

    BrnoWikipedia: Lukáš Rosol
  57. 1992

    Mikaël Kingsbury, Canadian skier

    Sainte-Agathe-des-MontsWikipedia: Mikaël Kingsbury
  58. 1940

    Dan Hedaya, American actor

    BrooklynWikipedia: Dan Hedaya
  59. 1958

    Jim Leighton, Scottish footballer and coach

    JohnstoneWikipedia: Jim Leighton
  60. 1968

    Laura Leighton, American actress

    Iowa CityWikipedia: Laura Leighton

What is celebrated on 24 July

  • Carnival of Awussu (Tunisia)
  • Children's Day (Vanuatu)
  • Christian feast day: Charbel (Maronite Church/Catholic Church)
  • Christian feast day: Blessed Christina the Astonishing
  • Christian feast day: Christina of Bolsena
  • Christian feast day: Declán of Ardmore
  • Christian feast day: Euphrasia of Constantinople
  • Christian feast day: John Boste
  • Christian feast day: Kinga (or Cunegunda) of Poland
  • Christian feast day: Menefrida of Cornwall
  • Christian feast day: Blessed Mercè Prat i Prat
  • Christian feast day: Sigolena of Albi
  • Christian feast day: July 24 (Eastern Orthodox liturgics)
  • Pioneer Day (Utah)

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