A birthday on the globe
29 October on the globe: what happened in the world on this day, and who was born
For 29 October, the English Wikipedia lists 62 events and 212 births. 35 of the events stand at their places as rays of light; eight 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 29 October through the years
The Earth on 29 October
The picture on the globe was assembled by NASA from satellite photographs taken in October 2004: the snow, the ice and the green are those of the month.
On 29 October the Sun passes straight overhead at noon along the parallel of 13.4° south. In London, the day lasts about 9 hours 50 minutes.
Beyond 77° south the Sun no longer sets; beyond 77° 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
1621
The London Pageant of 1621 celebrates the inauguration of Edward Barkham (Lord Mayor).
On the map: London.
Europe · Geneva
1863
Eighteen countries meet in Geneva and agree to form the International Red Cross.
On the map: Geneva.
Also on the day’s list of Wikipedia in Romanian and Chinese.
Asia · Constantinople
437
Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II, Eastern Roman Emperor in Constantinople unifying the two branches of the House of Theodosius.
On the map: Constantinople.
North America · Mount Hood
1792
Mount Hood (Oregon) is named after Samuel Hood, 1st Viscount Hood by Lt. William E. Broughton who sighted the mountain near the mouth of the Willamette River.
On the map: Mount Hood.
North America · San Francisco Mint
1883
The San Francisco Mint signed a contract to produce the Kalākaua coinage for the Hawaiian Kingdom.
On the map: San Francisco Mint.
North America · Expo 67
1967
Montreal's World Fair, Expo 67, closes with over 50 million visitors.
On the map: the coordinates Wikidata gives for the article “Expo 67”.
29 October
What the other Wikipedias remember#
For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Chinese and Spanish and were translated for this page.
From Wikipedia in Chinese · Prague
1787
The opera Don Giovanni by the Austrian composer Wolfgang Amadeus Mozart premieres at the Estates Theatre in Prague.
On the map: Prague.
Translated from the list on Wikipedia in Chinese.
From Wikipedia in Spanish · Saint Petersburg
1862
At the Bolshoi Kamenny Theatre in Saint Petersburg (Russia), Giuseppe Verdi premieres the opera La forza del destino.
On the map: Saint Petersburg.
Translated from the list on Wikipedia in Spanish.
29 October
Born on 29 October#
The English Wikipedia lists 212 births for this day. The blue points are the birthplaces of 59 of these people: those written about in the most Wikipedia editions, where Wikidata gives a place of birth.
Born on 29 October
1971
Winona Ryder, American actress and producer
Place of birth: Winona.
Born on 29 October
1970
Edwin van der Sar, Dutch footballer and sportscaster
Place of birth: Voorhout.
Born on 29 October
1947
Richard Dreyfuss, American actor and activist
Place of birth: Brooklyn.
Born on 29 October
1957
Dan Castellaneta, American actor, voice artist, comedian, singer and producer
Place of birth: Chicago.
Born on 29 October
1882
Jean Giraudoux, French author and playwright (died 1944)
Place of birth: Bellac.
Born in Britain and Ireland
1910
A. J. Ayer, English philosopher and author (died 1989)
Place of birth: London.
Born in Britain and Ireland
1740
James Boswell, Scottish lawyer and author (died 1795)
Place of birth: Edinburgh.
Born in Britain and Ireland
1967
Rufus Sewell, English actor
Place of birth: Twickenham.
29 October
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: 29 October 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 29 October
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 19 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.
- 312
Constantine the Great enters Rome after his victory at the Battle of the Milvian Bridge, stages a grand adventus in the city, and is met with popular jubilation. Maxentius' body is fished out of the Tiber and beheaded.
Europe · Battle of the Milvian BridgeWikipedia: Battle of the Milvian Bridge - 437
Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II, Eastern Roman Emperor in Constantinople unifying the two branches of the House of Theodosius.
Asia · ConstantinopleWikipedia: Valentinian III - 1390
First trial for witchcraft in Paris leading to the death of three people.
no place on the mapWikipedia: Witchcraft - 1467
Battle of Brustem: Charles the Bold defeats Prince-Bishopric of Liège.
Europe · Battle of BrustemWikipedia: Battle of Brustem - 1611
Russian homage to the King of Poland, Sigismund III Vasa.
no place on the mapWikipedia: Shuysky Tribute - 1621
The London Pageant of 1621 celebrates the inauguration of Edward Barkham (Lord Mayor).
Britain & Ireland · LondonWikipedia: The London Pageant of 1621 - 1658
Second Northern War: Naval forces of the Dutch Republic defeat the Swedes in the Battle of the Sound.
Europe · Battle of the SoundWikipedia: Northern War of 1655–1660 - 1665
Portuguese forces defeat the Kingdom of Kongo and decapitate King António I of Kongo, also known as Nvita a Nkanga.
Africa · Kingdom of KongoWikipedia: Battle of Mbwila - 1675
Leibniz makes the first use of the long s (∫) as a symbol of the integral in calculus.
no place on the mapWikipedia: Gottfried Wilhelm Leibniz - 1792
Mount Hood (Oregon) is named after Samuel Hood, 1st Viscount Hood by Lt. William E. Broughton who sighted the mountain near the mouth of the Willamette River.
North America · Mount HoodWikipedia: Mount Hood - 1831
Rioting broke out in Bristol, England, after the Second Reform Bill failed to pass parliament, causing 250 casualties and £300,000 of damage.
Britain & Ireland · BristolWikipedia: 1831 Bristol riots - 1863
American Civil War: Battle of Wauhatchie: Forces under Union General Ulysses S. Grant repel a Confederate attack led by General James Longstreet in one of the few night battles of the war, protecting the Union's recently opened supply line into Chattanooga, Tennessee.
North America · Battle of WauhatchieWikipedia: American Civil War - 1863
Eighteen countries meet in Geneva and agree to form the International Red Cross.
Europe · GenevaWikipedia: International Committee of the Red Cross - 1868
The Nanbu clan of Honshu surrendered to imperial forces during the Boshin War.
Asia · HonshuWikipedia: Nanbu clan - 1883
The San Francisco Mint signed a contract to produce the Kalākaua coinage for the Hawaiian Kingdom.
North America · San Francisco MintWikipedia: San Francisco Mint - 1888
The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Asia · IstanbulWikipedia: Convention of Constantinople - 1914
World War I : the Ottoman Empire enters the war on the side of the Central Powers.
Europe · BerlinWikipedia: World War I - 1918
World War I: the German High Seas Fleet is incapacitated when sailors mutiny, an action which would trigger the German Revolution of 1918–19.
Europe · German EmpireWikipedia: German revolution of 1918–1919 - 1923
Turkey becomes a republic following the dissolution of the Ottoman Empire.
no place on the mapWikipedia: Republic Day - 1929
Black Tuesday: The New York Stock Exchange crashes, ending the Great Bull Market of the 1920s and eventually contributing to the Great Depression.
North America · Wall Street crash of 1929Wikipedia: Wall Street crash of 1929 - 1941
The Holocaust: In the Kaunas Ghetto, over 10,000 Jews are shot by German occupiers at the Ninth Fort, a massacre known as the "Great Action".
Europe · Kaunas massacre of October 29, 1941Wikipedia: Kaunas massacre of October 29, 1941 - 1944
World War II: The Dutch city of Breda is liberated by 1st Polish Armoured Division.
Europe · BredaWikipedia: World War II - 1944
World War II: The Soviet Red Army enters Hungary.
no place on the mapWikipedia: Red Army - 1948
Israeli-Palestinian conflict: Safsaf massacre: Israeli soldiers capture the Palestinian village of Safsaf in the Galilee; afterwards, between 52 and 64 villagers are massacred by the IDF.
Asia · Safsaf massacreWikipedia: Safsaf massacre - 1953
BCPA Flight 304 DC-6 crashes near San Francisco.
North America · BCPA Flight 304Wikipedia: BCPA Flight 304 - 1955
The Soviet battleship Novorossiysk sinks after probably striking a World War II mine in the harbor at Sevastopol, with a loss of more than 600 sailers.
Europe · SevastopolWikipedia: Italian battleship Giulio Cesare - 1956
Israeli Border Police massacred 48 Arab citizens of Kafr Qasim, among them women and children who were returning from work.
Asia · Kafr Qasim massacreWikipedia: Kafr Qasim massacre - 1956
Suez Crisis begins: Israeli forces invade the Sinai Peninsula and push Egyptian forces back toward the Suez Canal.
no place on the mapWikipedia: Suez Crisis - 1957
Israel's prime minister David Ben-Gurion and five of his ministers are injured when Moshe Dwek throws a grenade into the Knesset.
no place on the mapWikipedia: David Ben-Gurion - 1960
An airplane carrying the Cal Poly football team crashes on takeoff in Toledo, Ohio.
North America · California Polytechnic State University football team plane crashWikipedia: California Polytechnic State University football team plane crash - 1964
Biggest jewel heist in American history when Murph the Surf and gang burgle the American Museum of Natural History stealing the Star of India and other gems.
North America · American Museum of Natural HistoryWikipedia: Gemstone - 1964
The United Republic of Tanganyika and Zanzibar is renamed to the United Republic of Tanzania.
no place on the mapWikipedia: Tanganyika - 1966
Singaporean leftist opposition leader Chia Thye Poh was detained under the Internal Security Act, which allows for preventive detention, and held for 32 years.
no place on the mapWikipedia: Chia Thye Poh - 1967
Montreal's World Fair, Expo 67, closes with over 50 million visitors.
North America · Expo 67Wikipedia: Expo 67 - 1969
The first-ever computer-to-computer link is established on ARPANET, the precursor to the Internet.
no place on the mapWikipedia: Computer - 1972
The three surviving perpetrators of the Munich massacre are released from prison in exchange for the hostages of the hijacked Lufthansa Flight 615.
Europe · Munich massacreWikipedia: Munich massacre - 1980
Demonstration flight of a secretly modified C-130 for an Iran hostage crisis rescue attempt ends in a crash landing at Eglin Air Force Base's Duke Field, Florida, leading to the cancellation of Operation Credible Sport.
Asia · Iran hostage crisisWikipedia: Iran hostage crisis - 1985
Major General Samuel K. Doe is announced as the winner of the first multi-party election in Liberia.
Africa · LiberiaWikipedia: Samuel Doe - 1986
British Prime Minister Margaret Thatcher opens the last stretch of the M25 motorway.
no place on the mapWikipedia: Margaret Thatcher - 1991
The American Galileo spacecraft makes its closest approach to 951 Gaspra, becoming the first probe to visit an asteroid.
no place on the mapWikipedia: Galileo - 1994
Francisco Martin Duran fires over two dozen shots at the White House; he is later convicted of trying to kill U.S. President Bill Clinton.
North America · White HouseWikipedia: White House - 1998
ATSC HDTV broadcasting in the United States is inaugurated with live coverage of the launch of the STS-95 space shuttle mission.
no place on the mapWikipedia: ATSC standards - 1998
Hurricane Mitch, the second deadliest Atlantic hurricane in history, makes landfall in Honduras.
Latin America · HondurasWikipedia: Hurricane Mitch - 1998
In South Africa, the Truth and Reconciliation Commission presents its report, which condemns both sides for committing atrocities.
no place on the mapWikipedia: Truth and Reconciliation Commission - 1998
Space Shuttle Discovery blasts off on STS-95 with 77-year-old John Glenn on board, making him the oldest person to go into space at that time.
no place on the mapWikipedia: Space Shuttle Discovery - 1998
The Gothenburg discothèque fire in Sweden kills 63 and injures over 200.
Europe · 1998 Gothenburg discotheque fireWikipedia: 1998 Gothenburg discotheque fire - 1999
A large cyclone devastates Odisha, India.
Asia · OdishaWikipedia: 1999 Odisha cyclone - 2002
A fire destroys a luxurious department store in Ho Chi Minh City, where 1,500 people are shopping. More than 60 people die and over 100 are unaccounted for in the deadliest peacetime disaster in Vietnam.
Asia · 2002 Ho Chi Minh City ITC fireWikipedia: 2002 Ho Chi Minh City ITC fire - 2004
The Arabic-language news network Al Jazeera broadcasts an excerpt from a 2004 Osama bin Laden video in which the terrorist leader first admits direct responsibility for the September 11, 2001 attacks and references the 2004 U.S. presidential election.
no place on the mapWikipedia: 2004 Osama bin Laden video - 2005
Bombings in Delhi, India kill 67 and injure over 200 people.
Asia · DelhiWikipedia: 2005 Delhi bombings - 2006
ADC Airlines Flight 053 crashes after takeoff from Nnamdi Azikiwe International Airport in Abuja, Nigeria killing 96 people and injuring nine.
Africa · ADC Airlines Flight 053Wikipedia: ADC Airlines Flight 053 - 2007
Somali pirates hijacked a North Korean ship in the Indian Ocean northeast of Mogadishu.
Africa · MogadishuWikipedia: Dai Hong Dan incident - 2008
A pair of deadly earthquakes hits Baluchistan, Pakistan, killing 215.
Asia · 2008 Ziarat earthquakesWikipedia: 2008 Ziarat earthquakes - 2008
Delta Air Lines merges with Northwest Airlines, creating the world's largest airline and reducing the number of US legacy carriers to five.
no place on the mapWikipedia: Delta Air Lines - 2012
Hurricane Sandy hits the east coast of the United States, killing hundreds, while leaving nearly $70 billion in damages and causing major power outages.
no place on the mapWikipedia: Hurricane Sandy - 2013
The first phase of the Marmaray project opened with an undersea rail tunnel across the Bosphorus strait.
no place on the mapWikipedia: Marmaray - 2014
A mud slide; the 2014 Badulla landslide, in south-central Sri Lanka, kills at least 16 people, and leaves hundreds of people missing.
Asia · 2014 Badulla landslideWikipedia: 2014 Badulla landslide - 2015
China announces the end of its one-child policy after 35 years.
Asia · ChinaWikipedia: China - 2018
A Boeing 737 MAX plane crashes after taking off from Jakarta, Indonesia killing 189 people on board. This is the first of two crashes that will lead to the plane being grounded worldwide.
Asia · Lion Air Flight 610Wikipedia: Lion Air Flight 610 - 2020
Jeremy Corbyn, former Leader of the Labour Party and of the Opposition in the United Kingdom is suspended from the Labour Party following his response to findings from the EHRC on the issue of antisemitism within the party.
Britain & Ireland · United KingdomWikipedia: Jeremy Corbyn - 2022
At least 100 people are killed and over 300 are injured by a double car bombing in Mogadishu, Somalia.
Africa · 2022 Somali Ministry of Education bombingsWikipedia: 2022 Somali Ministry of Education bombings - 2022
At least 156 die at a crowd crush during a Halloween celebration in Itaewon district, Seoul, South Korea.
Asia · Seoul Halloween crowd crushWikipedia: Seoul Halloween crowd crush
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 Chinese and Spanish and were translated for this page.
- 1787
The opera Don Giovanni by the Austrian composer Wolfgang Amadeus Mozart premieres at the Estates Theatre in Prague.
- 1862
At the Bolshoi Kamenny Theatre in Saint Petersburg (Russia), Giuseppe Verdi premieres the opera La forza del destino.
Who was born on 29 October
In order of how many Wikipedia editions have an article about each. The first 60 of 212 are shown.
- 1897
Joseph Goebbels, German lawyer and politician, Chancellor of Nazi Germany (died 1945)
- 1938
Ellen Johnson Sirleaf, Liberian politician, President of Liberia, Nobel Prize laureate
MonroviaWikipedia: Ellen Johnson Sirleaf - 1950
Abdullah Gül, Turkish academic and politician, 11th President of Turkey
KayseriWikipedia: Abdullah Gül - 1971
Winona Ryder, American actress and producer
WinonaWikipedia: Winona Ryder - 1982
Ahmed al-Sharaa, Syrian revolutionary and military leader, President of Syria
- 1970
Edwin van der Sar, Dutch footballer and sportscaster
VoorhoutWikipedia: Edwin van der Sar - 1879
Franz von Papen, German soldier and politician, Chancellor of Germany (died 1969)
- 1947
Richard Dreyfuss, American actor and activist
BrooklynWikipedia: Richard Dreyfuss - 1957
Dan Castellaneta, American actor, voice artist, comedian, singer and producer
ChicagoWikipedia: Dan Castellaneta - 1959
John Magufuli, Tanzanian politician, 5th President of Tanzania (died 2021)
- 1882
Jean Giraudoux, French author and playwright (died 1944)
- 1926
Necmettin Erbakan, Turkish engineer and politician, 23rd Prime Minister of Turkey (died 2011)
- 1920
Baruj Benacerraf, Venezuelan-American physician and immunologist, Nobel Prize laureate (died 2011)
CaracasWikipedia: Baruj Benacerraf - 1929
Yevgeny Primakov, Ukrainian-Russian journalist and politician, 32nd Prime Minister of Russia (died 2015)
- 1973
Robert Pires, French footballer
- 1935
Isao Takahata, Japanese director (died 2018)
- 1711
Laura Bassi, Italian physicist and academic, first woman to have doctorate in science (died 1778)
- 1910
A. J. Ayer, English philosopher and author (died 1989)
LondonWikipedia: A. J. Ayer - 1970
Phillip Cocu, Dutch footballer and manager
EindhovenWikipedia: Phillip Cocu - 1998
Lance Stroll, Canadian racing driver
MontrealWikipedia: Lance Stroll - 1875
Marie of Romania (died 1938)
Eastwell ParkWikipedia: Marie of Romania - 1507
Fernando Alvarez de Toledo, Spanish general (died 1582)
- 1740
James Boswell, Scottish lawyer and author (died 1795)
EdinburghWikipedia: James Boswell - 1930
Niki de Saint Phalle, French sculptor and painter (died 2002)
Neuilly-sur-SeineWikipedia: Niki de Saint Phalle - 1942
Bob Ross, American painter and television host (died 1995)
Daytona BeachWikipedia: Bob Ross - 1972
Gabrielle Union, American actress and producer
- 1980
Ben Foster, American actor
- 1987
Tove Lo, Swedish singer
Viken church parishWikipedia: Tove Lo - 1990
Eric Saade, Swedish singer
KattarpWikipedia: Eric Saade - 1880
Abram Ioffe, Russian physicist and academic (died 1960)
- 1967
Rufus Sewell, English actor
TwickenhamWikipedia: Rufus Sewell - 1946
Peter Green, English singer-songwriter and guitarist (died 2020)
Metropolitan Borough of Bethnal GreenWikipedia: Peter Green - 1983
Jérémy Mathieu, French footballer
Luxeuil-les-BainsWikipedia: Jérémy Mathieu - 1989
Primož Roglič, Slovenian ski jumper and cyclist
TrbovljeWikipedia: Primož Roglič - 1899
Akim Tamiroff, Georgian-American actor (died 1972)
TbilisiWikipedia: Akim Tamiroff - 1906
Fredric Brown, American author (died 1972)
CincinnatiWikipedia: Fredric Brown - 1960
Fabiola Gianotti, Italian physicist and academic
- 1948
Frans de Waal, Dutch-American ethologist, author, and academic (died 2024)
- 1938
Ralph Bakshi, American director, producer, and screenwriter
- 1985
Vijender Singh, Indian boxer
KaluwasWikipedia: Vijender Singh - 1923
Carl Djerassi, Austrian-American chemist, author, and playwright (died 2015)
ViennaWikipedia: Carl Djerassi - 1925
Robert Hardy, English actor (died 2017)
CheltenhamWikipedia: Robert Hardy - 1925
Klaus Roth, British mathematician (died 2015)
WrocławWikipedia: Klaus Roth - 1968
Johann Olav Koss, Norwegian speed skater and physician
DrammenWikipedia: Johann Olav Koss - 1891
Fanny Brice, American actress and singer (died 1951)
ManhattanWikipedia: Fanny Brice - 1504
Shin Saimdang, South Korean painter and poet (died 1551)
GangneungWikipedia: Shin Saimdang - 1948
Kate Jackson, American actress, director, and producer
BirminghamWikipedia: Kate Jackson - 1961
Randy Jackson, American singer-songwriter and dancer
- 1967
Thorsten Fink, German footballer and manager
MartenWikipedia: Thorsten Fink - 1992
Evan Fournier, French basketball player
Saint-MauriceWikipedia: Evan Fournier - 1952
Marcia Fudge, American lawyer and politician
ClevelandWikipedia: Marcia Fudge - 1972
Tracee Ellis Ross, American actress and producer
Los AngelesWikipedia: Tracee Ellis Ross - 1993
India Eisley, American actress
Los AngelesWikipedia: India Eisley - 1977
Jon Abrahams, American actor
New York CityWikipedia: Jon Abrahams - 1944
Denny Laine, English singer-songwriter and musician (died 2023)
TyseleyWikipedia: Denny Laine - 1996
Astrid S, Norwegian singer and songwriter
BerkåkWikipedia: Astrid S - 1930
Omara Portuondo, Cuban singer and dancer
- 1920
Václav Neumann, Czech violinist and conductor (died 1995)
- 1982
Ariel Lin, Taiwanese actress and singer
Yilan CountyWikipedia: Ariel Lin - 1985
Cal Crutchlow, English motorcycle racer
CoventryWikipedia: Cal Crutchlow
What is celebrated on 29 October
- Christian feast day: Abraham of Rostov
- Christian feast day: Blessed Chiara Badano
- Christian feast day: Colman mac Duagh
- Christian feast day: Douai Martyrs
- Christian feast day: Gaetano Errico
- Christian feast day: James Hannington (Anglicanism)
- Christian feast day: Michele Rua
- Christian feast day: Narcissus of Jerusalem
- Christian feast day: Theuderius
- Christian feast day: October 29 (Eastern Orthodox liturgics)
- Coronation Day (Cambodia)
- National Cat Day (United States)
- Republic Day (Turkey) or Cumhuriyet Bayramı
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.