A birthday on the globe
4 November on the globe: what happened in the world on this day, and who was born
For 4 November, the English Wikipedia lists 56 events and 221 births. 32 of the events stand at their places as rays of light; two more are dashed circles, where the sentence links only to a country or a sea. The taller the ray, the longer ago it happened. The people born that day come further down, as blue points.
A birthday, yours or someone else’s:
Turn it into a greetingScroll: the globe turns to each place
The day you were born, on the globe.
Three things from your day
Scroll: your day first, then 4 November through the years
The Earth on 4 November
The picture on the globe was assembled by NASA from satellite photographs taken in November 2004: the snow, the ice and the green are those of the month.
On 4 November the Sun passes straight overhead at noon along the parallel of 15.3° south. In London, the day lasts about 9 hours 30 minutes.
Beyond 75° south the Sun no longer sets; beyond 75° 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.
Britain & Ireland · London Underground
1890
City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
On the map: London Underground.
Also on the day’s list of Wikipedia in Romanian.
Europe · Teatro di San Carlo
1737
The Teatro di San Carlo, the oldest working opera house in Europe, is inaugurated in Naples, Italy.
On the map: Teatro di San Carlo.
Also on the day’s list of Wikipedia in Spanish, Romanian and Chinese.
Europe · Linz
1783
Wolfgang Amadeus Mozart's Symphony No. 36 is performed for the first time in Linz, Austria.
On the map: Linz.
Also on the day’s list of Wikipedia in Romanian.
Europe · Paris Agreement
2016
The Paris Agreement, under the United Nations Framework Convention on Climate Change, came into effect.
On the map: Paris Agreement.
Also on the day’s list of Wikipedia in Spanish and Chinese.
Latin America · Leeward Islands
1493
Christopher Columbus reaches the Leeward Islands.
On the map: Leeward Islands.
4 November
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.
From Wikipedia in Spanish · Seattle
1861
In Seattle (Washington), the University of Washington opens as a state university.
On the map: Seattle.
Translated from the list on Wikipedia in Spanish.
From Wikipedia in Spanish · European Convention on Human Rights
1950
In Strasbourg (France), the European Convention on Human Rights, which founds the European Court of Human Rights, is signed.
On the map: European Convention on Human Rights.
Translated from the list on Wikipedia in Spanish.
The article on Wikipedia in Spanish: Convención Europea de Derechos Humanos
From Wikipedia in Spanish · Monterey
1987
In Monterey (California), NATO defence ministers support a 50% reduction in strategic nuclear arsenals.
On the map: Monterey.
Translated from the list on Wikipedia in Spanish.
From Wikipedia in Spanish · Rio de Janeiro
2023
In Rio de Janeiro (Brazil), Fluminense of Brazil beat Boca Juniors of Argentina 2-1 at the Maracanã Stadium and are crowned champions of the 2023 Copa Libertadores.
On the map: Rio de Janeiro.
Translated from the list on Wikipedia in Spanish.
The article on Wikipedia in Spanish: Anexo:Final de la Copa Libertadores 2023
4 November
Born on 4 November#
The English Wikipedia lists 221 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.
Born on 4 November
1969
Matthew McConaughey, American actor and producer
Place of birth: Uvalde.
Born on 4 November
1972
Luís Figo, Portuguese footballer and sportscaster
Place of birth: Almada.
Born on 4 November
1933
Charles K. Kao, Chinese physicist and engineer, Nobel Prize laureate (died 2018)
Place of birth: Shanghai.
Born on 4 November
1998
Achraf Hakimi, Moroccan footballer
Place of birth: Madrid.
Born in Britain and Ireland
1787
Edmund Kean, British Shakespearean stage actor (died 1833)
Place of birth: London.
Born in Britain and Ireland
1953
Peter Lord, English animator, director, and producer, co-founded Aardman Animations
Place of birth: Bristol.
4 November
Number one in the charts that week
At the cinema
An animal recorded that day
The record can be seen in GBIF, which brings together wildlife records from around the world.
All your birthdays
The weather that day
Data: Met Office Hadley Centre (HadCET); NOAA (GHCN-Daily, Mauna Loa).
Above the Earth
Sources: Jonathan McDowell, GCAT (launches); GFZ Potsdam (Kp index). Days are counted in Universal Time.
Football that day
International matches played that day:
Source: the “International football results” dataset kept by Mart Jürisoo (CC0).
Also that day
The earthquake’s page at the USGS
Source: the USGS catalogue. The day is counted in Universal Time (UTC).
In those days
Make a link for someone
Type the name, pick the day and the year of birth. The link opens straight on their day, with their name in the greeting.
The link carries the name, date and place typed here; anyone who gets it can see them.
Put another birthday beside it
Your mother’s, your child’s, a friend’s: the two days appear side by side.
Below: 4 November through the years.
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 4 November
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 22 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.
- 512
Following Byzantine emperor Anastasius' deposition of Chalcedonian patriarchs and attempts to make Monophysite changes to liturgy, riots break out in Constantinople with a mob trying to proclaim Areobindus as emperor.
Asia · ConstantinopleWikipedia: List of Byzantine emperors - 1354
War of the Straits: The Genoese fleet under Paganino Doria defeats and captures the entire Venetian fleet under Niccolò Pisani at the Battle of Sapienza.
Europe · Battle of SapienzaWikipedia: Battle of Sapienza - 1429
Armagnac–Burgundian Civil War: Joan of Arc liberates Saint-Pierre-le-Moûtier.
Europe · Siege of Saint-Pierre-le-MoûtierWikipedia: Armagnac–Burgundian Civil War - 1493
Christopher Columbus reaches the Leeward Islands.
Latin America · Leeward IslandsWikipedia: Christopher Columbus - 1501
Catherine of Aragon (later Henry VIII's first wife) meets Arthur, Prince of Wales, Henry VIII's older brother – they would later marry.
no place on the mapWikipedia: Catherine of Aragon - 1576
Eighty Years' War: In Flanders, Spain captures Antwerp (which is nearly destroyed after three days).
Europe · Sack of AntwerpWikipedia: Sack of Antwerp - 1677
The future Mary II marries William, Prince of Orange; they later jointly reign over England, Scotland, and Ireland as William and Mary.
no place on the mapWikipedia: Mary II - 1737
The Teatro di San Carlo, the oldest working opera house in Europe, is inaugurated in Naples, Italy.
Europe · Teatro di San CarloWikipedia: Teatro di San Carlo - 1780
The Rebellion of Túpac Amaru II against Spanish rule in the Viceroyalty of Peru begins.
no place on the mapWikipedia: Rebellion of Túpac Amaru II - 1783
Wolfgang Amadeus Mozart's Symphony No. 36 is performed for the first time in Linz, Austria.
Europe · LinzWikipedia: Wolfgang Amadeus Mozart - 1791
Northwest Indian War: The Western Confederacy of American Indians wins a major victory over the United States in the Battle of the Wabash.
North America · St. Clair's defeatWikipedia: St. Clair's defeat - 1798
The Russo-Ottoman siege of Corfu begins.
Europe · Siege of CorfuWikipedia: Siege of Corfu - 1839
Newport Rising: The last large-scale armed rebellion against authority in mainland Britain.
Britain & Ireland · NewportWikipedia: Newport Rising - 1847
Sir James Young Simpson, a Scottish medical doctor, discovers the anaesthetic properties of chloroform.
no place on the mapWikipedia: James Young Simpson - 1852
Camillo Benso, Count of Cavour, becomes the prime minister of Piedmont-Sardinia, which soon expands to become Italy.
Europe · PiedmontWikipedia: Camillo Benso, Count of Cavour - 1864
American Civil War: Confederate troops bombard a Union supply base and destroy millions of dollars in materiel at the Battle of Johnsonville.
North America · Battle of JohnsonvilleWikipedia: American Civil War - 1868
Camagüey, Cuba, revolts against Spain during the Ten Years' War.
Latin America · CamagüeyWikipedia: Ten Years' War - 1890
City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
Britain & Ireland · London UndergroundWikipedia: City and South London Railway - 1912
The keel of USS Nevada was laid down, beginning construction on the United States Navy's first "super-dreadnought".
no place on the mapWikipedia: United States Navy - 1918
World War I: The Armistice of Villa Giusti between Italy and Austria-Hungary is implemented.
Europe · Armistice of Villa GiustiWikipedia: World War I - 1921
Japanese prime minister Hara Takashi is assassinated in Tokyo.
no place on the mapWikipedia: Prime Minister of Japan - 1921
The Saalschutz Abteilung (hall defense detachment) of the Nazi Party is renamed the Sturmabteilung (storm detachment) after a large riot in Munich.
Europe · MunichWikipedia: Nazi Party - 1921
The remains of an unknown soldier were buried with an eternal flame at the Altare della Patria in Rome.
Europe · Tomb of the Unknown SoldierWikipedia: Tomb of the Unknown Soldier - 1922
In Egypt, British archaeologist Howard Carter and his men find the entrance to Tutankhamun's tomb in the Valley of the Kings.
no place on the mapWikipedia: Howard Carter - 1924
Nellie Tayloe Ross of Wyoming becomes the first female elected as governor in the United States.
North America · WyomingWikipedia: Nellie Tayloe Ross - 1936
Spanish Civil War: Largo Caballero reshuffles his war cabinet, persuading the anarcho-syndicalist CNT to join the government.
no place on the mapWikipedia: Spanish Civil War - 1938
The Hlinka Guard and Slovakian police began the deportation of several thousand Jews from the country.
no place on the mapWikipedia: 1938 deportation of Jews from Slovakia - 1939
World War II: U.S. president Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.
no place on the mapWikipedia: World War II - 1942
World War II: Disobeying a direct order by Adolf Hitler, General Field Marshal Erwin Rommel begins a retreat of his forces after a costly defeat during the Second Battle of El Alamein. The retreat would ultimately last five months.
Africa · Second Battle of El AlameinWikipedia: Second Battle of El Alamein - 1944
World War II: Operation Pheasant, an Allied offensive to liberate North Brabant in the Netherlands, ends successfully.
Europe · Operation PheasantWikipedia: Operation Pheasant - 1944
World War II: The 7th Macedonian Liberation Brigade liberates Bitola for the Allies.
Europe · BitolaWikipedia: Macedonian Partisans - 1952
The United States government establishes the National Security Agency, or NSA.
no place on the mapWikipedia: Federal government of the United States - 1956
Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.
no place on the mapWikipedia: Hungarian Revolution of 1956 - 1960
At the Kasakela Chimpanzee Community in Tanzania, Jane Goodall observes chimpanzees creating tools, the first-ever observation in non-human animals.
no place on the mapWikipedia: Kasakela chimpanzee community - 1962
The United States concludes Operation Fishbowl, its final above-ground nuclear weapons testing series, in anticipation of the 1963 Partial Nuclear Test Ban Treaty.
no place on the mapWikipedia: Partial Nuclear Test Ban Treaty - 1964
Ruhollah Khomeini was arrested by SAVAK, the Iranian secret police, and exiled to Turkey.
no place on the mapWikipedia: Ruhollah Khomeini - 1966
The Arno River floods Florence, Italy, to a maximum depth of 6.7 m (22 ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Venice is also submerged on the same day at its record all-time acqua alta of 194 cm (76 in).
Europe · ArnoWikipedia: 1966 flood of the Arno - 1967
Iberia Flight 062 crashes in Blackdown, West Sussex, killing all 37 people on board including British actress June Thorburn.
Britain & Ireland · Iberia Flight 062Wikipedia: Iberia Flight 062 - 1970
Authorities in California discovered a 13-year-old feral child, pseudonymously known as Genie, who had spent nearly her entire life in social isolation.
no place on the mapWikipedia: Feral child - 1970
Salvador Allende takes office as President of Chile, the first Marxist to become president of a Latin American country through open elections.
no place on the mapWikipedia: Salvador Allende - 1970
Vietnam War: The United States turns over control of the air base at Bình Thủy in the Mekong Delta to South Vietnam.
Asia · Binh Thuy Air BaseWikipedia: Vietnam War - 1973
The Netherlands experiences the first car-free Sunday caused by the 1973 oil crisis. Highways are used only by cyclists and roller skaters.
no place on the mapWikipedia: 1973 oil crisis - 1979
Iran hostage crisis: A group of Iranian college students overruns the U.S. embassy in Tehran and takes 90 hostages.
Asia · Iran hostage crisisWikipedia: Iran hostage crisis - 1980
Ronald Reagan is elected as the 40th President of the United States, defeating incumbent Jimmy Carter.
no place on the mapWikipedia: 1980 United States presidential election - 1993
China Airlines Flight 605, a brand-new 747-400, overruns the runway at Hong Kong Kai Tak Airport.
Asia · China Airlines Flight 605Wikipedia: China Airlines Flight 605 - 1995
Israel-Palestinian conflict: Israeli prime minister Yitzhak Rabin is assassinated by an extremist Israeli.
Asia · Assassination of Yitzhak RabinWikipedia: Assassination of Yitzhak Rabin - 2002
Chinese authorities arrest cyber-dissident He Depu for signing a pro-democracy letter to the 16th Communist Party Congress.
no place on the mapWikipedia: National Congress of the Chinese Communist Party - 2008
Barack Obama becomes the first person of biracial or African-American descent to be elected as President of the United States.
no place on the mapWikipedia: 2008 United States presidential election - 2010
Aero Caribbean Flight 883 crashes into Guasimal, Sancti Spíritus; all 68 passengers and crew are killed.
Latin America · Aero Caribbean Flight 883Wikipedia: Aero Caribbean Flight 883 - 2010
Qantas Flight 32, an Airbus A380, suffers an uncontained engine failure over Indonesia shortly after taking off from Singapore, crippling the jet. The crew manage to safely return to Singapore, saving all 469 passengers and crew.
Asia · Qantas Flight 32Wikipedia: Qantas Flight 32 - 2015
A building collapses in the Pakistani city of Lahore resulting in at least 45 deaths and at least 100 injuries.
Asia · 2015 Lahore factory disasterWikipedia: 2015 Lahore factory disaster - 2015
A cargo plane crashes shortly after takeoff from Juba International Airport in Juba, South Sudan, killing at least 37 people.
Africa · 2015 Juba Antonov An-12 crashWikipedia: 2015 Juba Antonov An-12 crash - 2016
The Paris Agreement, under the United Nations Framework Convention on Climate Change, came into effect.
Europe · Paris AgreementWikipedia: Paris Agreement - 2020
The Tigray War begins with Tigrayan rebels launching attacks on Ethiopian command centers.
no place on the mapWikipedia: Tigray war - 2022
The Khash massacre, which refers to the repression of protesters by Iranian security forces, resulting in 18 deaths and more than 20 injuries.
Asia · KhashWikipedia: 2022 Khash massacre - 2025
UPS Airlines Flight 2976, a McDonnell Douglas MD-11F crashes into multiple buildings during takeoff at Louisville Muhammad Ali International Airport in Louisville, Kentucky, killing 15 people, including the 3 crew members.
North America · UPS Airlines Flight 2976Wikipedia: UPS Airlines Flight 2976
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.
- 1861
In Seattle (Washington), the University of Washington opens as a state university.
- 1950
In Strasbourg (France), the European Convention on Human Rights, which founds the European Court of Human Rights, is signed.
Europe · European Convention on Human RightsTranslated from the list on Wikipedia in SpanishWikipedia: Convención Europea de Derechos Humanos - 1987
In Monterey (California), NATO defence ministers support a 50% reduction in strategic nuclear arsenals.
- 2023
In Rio de Janeiro (Brazil), Fluminense of Brazil beat Boca Juniors of Argentina 2-1 at the Maracanã Stadium and are crowned champions of the 2023 Copa Libertadores.
Latin America · Rio de JaneiroTranslated from the list on Wikipedia in SpanishWikipedia: Anexo:Final de la Copa Libertadores 2023
Who was born on 4 November
In order of how many Wikipedia editions have an article about each. The first 60 of 221 are shown.
- 1946
Laura Bush, American educator and librarian, 45th First Lady of the United States
MidlandWikipedia: Laura Bush - 1969
Matthew McConaughey, American actor and producer
- 1957
Tony Abbott, English-Australian scholar and politician, 28th Prime Minister of Australia
General Lying-In HospitalWikipedia: Tony Abbott - 1951
Traian Băsescu, Romanian captain and politician, 4th President of Romania
MurfatlarWikipedia: Traian Băsescu - 1972
Luís Figo, Portuguese footballer and sportscaster
AlmadaWikipedia: Luís Figo - 1933
Charles K. Kao, Chinese physicist and engineer, Nobel Prize laureate (died 2018)
ShanghaiWikipedia: Charles K. Kao - 1998
Achraf Hakimi, Moroccan footballer
MadridWikipedia: Achraf Hakimi - 1969
Sean Combs, American rapper, producer, and actor
- 1908
Joseph Rotblat, Polish-English physicist and academic, Nobel Prize laureate (died 2005)
- 1948
Amadou Toumani Touré, Malian soldier and politician, President of Mali (died 2020)
- 1879
Will Rogers, American actor and screenwriter (died 1935)
OologahWikipedia: Will Rogers - 1916
Walter Cronkite, American journalist, voice actor, and producer (died 2009)
St. JosephWikipedia: Walter Cronkite - 1955
Matti Vanhanen, Finnish journalist and politician, 40th Prime Minister of Finland
JyväskyläWikipedia: Matti Vanhanen - 1932
Thomas Klestil, Austrian politician and diplomat, 10th President of Austria (died 2004)
- 1918
Art Carney, American actor (died 2003)
Mount VernonWikipedia: Art Carney - 1575
Guido Reni, Italian painter and illustrator (died 1642)
BolognaWikipedia: Guido Reni - 1971
Tabu, Indian actress
HyderabadWikipedia: Tabu - 1929
Shakuntala Devi, Indian mathematician and astrologer (died 2013)
BengaluruWikipedia: Shakuntala Devi - 1985
Marcell Jansen, German footballer
MönchengladbachWikipedia: Marcell Jansen - 1787
Edmund Kean, British Shakespearean stage actor (died 1833)
LondonWikipedia: Edmund Kean - 1916
Ruth Handler, American businesswoman, created Barbie (died 2002)
ColoradoWikipedia: Ruth Handler - 1919
Martin Balsam, American actor, director, and screenwriter (died 1996)
The BronxWikipedia: Martin Balsam - 1952
Pope Tawadros II of Alexandria
- 1970
Malena Ernman, Swedish soprano
Uppsala Cathedral AssemblyWikipedia: Malena Ernman - 1592
Gerard van Honthorst, Dutch painter (died 1656)
- 1913
Gig Young, American actor (died 1978)
St. CloudWikipedia: Gig Young - 1925
Doris Roberts, American actress (died 2016)
St. LouisWikipedia: Doris Roberts - 1961
Ralph Macchio, American actor
HuntingtonWikipedia: Ralph Macchio - 1896
Carlos P. Garcia, Filipino lawyer and politician, 8th President of the Philippines (died 1971)
TalibonWikipedia: Carlos P. Garcia - 1631
Mary, Princess Royal and Princess of Orange (died 1660)
St James's PalaceWikipedia: Mary, Princess Royal and Princess of Orange - 1973
Steven Ogg, Canadian actor
EdmontonWikipedia: Steven Ogg - 1982
Kamila Skolimowska, Polish hammer thrower (died 2009)
- 1940
Marlène Jobert, French actress, singer, and author
AlgiersWikipedia: Marlène Jobert - 1946
Robert Mapplethorpe, American photographer (died 1989)
Floral ParkWikipedia: Robert Mapplethorpe - 1956
Jordan Rudess, American keyboard player and songwriter
Great NeckWikipedia: Jordan Rudess - 1960
Kathy Griffin, American comedian and actress
Oak ParkWikipedia: Kathy Griffin - 1987
Artur Jędrzejczyk, Polish footballer
- 1448
Alfonso II of Naples (died 1495)
- 1868
La Belle Otero, Spanish actress, singer, and dancer (died 1965)
- 1909
Bert Patenaude, American soccer player (died 1974)
Fall RiverWikipedia: Bert Patenaude - 1914
Carlos Castillo Armas, Authoritarian ruler of Guatemala (died 1957)
QuetzaltenangoWikipedia: Carlos Castillo Armas - 1933
C. Odumegwu Ojukwu, Nigerian colonel and politician, President of Biafra (died 2011)
- 1937
Loretta Swit, American actress and singer (died 2025)
PassaicWikipedia: Loretta Swit - 1984
Ayila Yussuf, Nigerian footballer
- 1942
Patricia Bath, American ophthalmologist and academic (died 2019)
- 1965
Wayne Static, American singer-songwriter and guitarist (died 2014)
MuskegonWikipedia: Wayne Static - 1976
Mario Melchiot, Dutch footballer
AmsterdamWikipedia: Mario Melchiot - 1918
Cameron Mitchell, American actor (died 1994)
DallastownWikipedia: Cameron Mitchell - 1929
Anastasios of Albania, Greek-Albanian archbishop (died 2025)
- 1990
Jean-Luc Bilodeau, Canadian actor
VancouverWikipedia: Jean-Luc Bilodeau - 1661
Charles III Philip, Elector Palatine, German son of Landgravine Elisabeth Amalie of Hesse-Darmstadt (died 1742)
Neuburg an der DonauWikipedia: Charles III Philip - 1883
Nikolaos Plastiras, Greek general and politician 135th Prime Minister of Greece (died 1953)
- 1931
Bernard Francis Law, Mexican-American cardinal (died 2017)
- 1986
Alexz Johnson, Canadian actress and singer-songwriter
New WestminsterWikipedia: Alexz Johnson - 2000
Tyrese Maxey, American basketball player
DallasWikipedia: Tyrese Maxey - 1890
Klabund, German author and poet (died 1928)
Krosno OdrzańskieWikipedia: Klabund - 1901
Spyridon Marinatos, Greek archaeologist, author, and academic (died 1974)
- 1953
Peter Lord, English animator, director, and producer, co-founded Aardman Animations
BristolWikipedia: Peter Lord - 2000
Sun Yingsha, Chinese table tennis player
ShijiazhuangWikipedia: Sun Yingsha - 1874
Charles Despiau, French sculptor (died 1946)
Mont-de-MarsanWikipedia: Charles Despiau
What is celebrated on 4 November
- Christian feast day: Charles Borromeo (Roman Catholic Church)
- Christian feast day: Emeric of Hungary
- Christian feast day: Felix of Valois
- Christian feast day: Joannicius the Great
- Christian feast day: Modesta
- Christian feast day: Our Lady of Kazan (Russian Orthodox Church)
- Christian feast day: Pierius
- Christian feast day: Blessed Teresa Manganiello
- Christian feast day: Vitalis and Agricola
- Christian feast day: November 4 (Eastern Orthodox liturgics)
- Community Service Day (Dominica)
- Flag Day (Panama)
- National Tonga Day (Tonga)
- National Unity and Armed Forces Day or Giorno dell'Unità Nazionale e Festa delle Forze Armate (Italy)
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.
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
- Events, births and holidays: the day’s page on Wikipedia, text under CC BY-SA 4.0.
- Coordinates, places of birth and the number of editions: Wikidata (CC0).
- The Earth by day: NASA Blue Marble Next Generation. The Earth by night: NASA Black Marble 2016.
- Borders and regions: Natural Earth.
- World population and births per year: UN World Population Prospects 2024.
- Charts and films: Wikipedia’s lists for Billboard, the UK Singles Chart, Los 40 Principales, Romanian Top 100, Airplay 100 and American films by year (CC BY-SA 4.0).
- Weather: Met Office Hadley Centre, HadCET (Open Government Licence) and NOAA GHCN-Daily, New York Central Park. Carbon dioxide: NOAA Global Monitoring Laboratory, Mauna Loa.
- Earthquakes: the USGS catalogue. Launches: Jonathan McDowell, GCAT (CC BY). Kp index: GFZ Potsdam (CC BY 4.0). Matches: International football results, Mart Jürisoo (CC0).
- Animal observations: GBIF, with a link to each record; species names come from Wikidata.