A birthday on the globe
31 January on the globe: what happened in the world on this day, and who was born
For 31 January, the English Wikipedia lists 61 events and 192 births. 37 of the events stand at their places as rays of light; five 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 31 January through the years
The Earth on 31 January
The picture on the globe was assembled by NASA from satellite photographs taken in January 2004: the snow, the ice and the green are those of the month.
On 31 January the Sun passes straight overhead at noon along the parallel of 17.5° south. In London, the day lasts about 9 hours 5 minutes.
Beyond 73° south the Sun no longer sets; beyond 73° 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 Lock Hospital
1747
The first venereal diseases clinic opens at London Lock Hospital.
On the map: London Lock Hospital.
Also on the day’s list of Wikipedia in Chinese.
Europe · Porto
1891
History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
On the map: Porto.
Also on the day’s list of Wikipedia in Romanian.
Europe · Moscow Art Theatre
1901
Anton Chekhov's Three Sisters premieres at Moscow Art Theatre in Russia.
On the map: Moscow Art Theatre.
North America · Northwestern University
1862
Alvan Graham Clark discovers the white dwarf star Sirius B, a companion of Sirius, through an 18.5-inch (47 cm) telescope now located at Northwestern University.
On the map: Northwestern University.
Also on the day’s list of Wikipedia in Romanian.
North America · San Diego Stadium
1988
Doug Williams becomes the first African American quarterback to play in a Super Bowl and leads the Washington Redskins to victory in Super Bowl XXII.
On the map: San Diego Stadium.
31 January
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 Romanian and were translated for this page.
From Wikipedia in Chinese · Supreme Court of the United States
1801
John Marshall becomes the fourth Chief Justice of the United States, going on to establish the position of the Supreme Court within the separation of powers under the United States Constitution.
On the map: Supreme Court of the United States.
Translated from the list on Wikipedia in Chinese.
From Wikipedia in Romanian · Paris
1977
The Georges Pompidou Cultural Centre, designed by Renzo Piano, Richard Rogers and Gianfranco Franchini, opens in Paris.
On the map: Paris.
Translated from the list on Wikipedia in Romanian.
31 January
Born on 31 January#
The English Wikipedia lists 192 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 31 January
1797
Franz Schubert, Austrian pianist and composer (died 1828)
Place of birth: Himmelpfortgrund.
Born on 31 January
1981
Justin Timberlake, American singer-songwriter, dancer, and actor
Place of birth: Memphis.
Born on 31 January
1935
Kenzaburō Ōe, Japanese author and academic, Nobel Prize laureate (died 2023)
Place of birth: Ōse.
Born on 31 January
1923
Norman Mailer, American journalist and author (died 2007)
Place of birth: Long Branch.
Born on 31 January
1975
Preity Zinta, Indian actress, producer, and television host
Place of birth: Shimla.
Born in Britain and Ireland
1929
Jean Simmons, English-American actress (died 2010)
Place of birth: London.
Born in Britain and Ireland
1956
John Lydon, English singer-songwriter
Place of birth: Holloway.
Born in Britain and Ireland
1970
Minnie Driver, English singer-songwriter and actress
Place of birth: Marylebone.
31 January
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: 31 January 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 31 January
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.
- 314
Pope Sylvester I is consecrated, as successor to the late Pope Miltiades.
no place on the mapWikipedia: Pope Sylvester I - 1208
The Battle of Lena takes place between King Sverker the Younger of Sweden and his rival, Prince Erik Knutsson, whose victory puts him on the throne as King Eric X.
Europe · Battle of LenaWikipedia: Battle of Lena - 1266
The Mudéjar of Murcia, who had rebelled against the Crown of Castile during the Mudéjar revolt of 1264–1266, surrender the city to James I of Aragon after a siege lasting a month.
Europe · Crown of CastileWikipedia: Mudéjar - 1504
The Treaty of Lyon ends the Italian War, confirming French domination of northern Italy, while Spain receives the Kingdom of Naples.
Europe · Kingdom of NaplesWikipedia: Italian Wars of 1499–1504 - 1578
Eighty Years' War and Anglo-Spanish War: The Battle of Gembloux is a victory for Spanish forces led by Don John of Austria over a rebel army of Dutch, Flemish, English, Scottish, German, French and Walloons.
Europe · Battle of GemblouxWikipedia: Battle of Gembloux - 1606
Gunpowder Plot: Four of the conspirators, including Guy Fawkes, are executed for treason by hanging, drawing and quartering, for plotting against Parliament and King James.
Britain & Ireland · Gunpowder PlotWikipedia: Gunpowder Plot - 1609
Wisselbank of Amsterdam established
no place on the mapWikipedia: Bank of Amsterdam - 1703
Forty-seven rōnin, under the command of Ōishi Kuranosuke, avenged the death of their master, by killing Kira Yoshinaka.
Asia · Forty-seven rōninWikipedia: Forty-seven rōnin - 1747
The first venereal diseases clinic opens at London Lock Hospital.
Britain & Ireland · London Lock HospitalWikipedia: Sexually transmitted infection - 1814
Gervasio Antonio de Posadas becomes Supreme Director of the United Provinces of the Río de la Plata (present-day Argentina).
no place on the mapWikipedia: Gervasio Antonio de Posadas - 1827
Mexican soldiers and Texan militiamen marched into Nacogdoches, Texas, to end the Fredonian Rebellion.
North America · Nacogdoches, TexasWikipedia: Fredonian Rebellion - 1846
After the Milwaukee Bridge War, the United States towns of Juneautown and Kilbourntown unify to create the City of Milwaukee.
North America · MilwaukeeWikipedia: Milwaukee Bridge War - 1848
John C. Frémont is court-martialed for mutiny and disobeying orders.
no place on the mapWikipedia: John C. Frémont - 1850
Ute Wars: On behalf of Utah territorial governor Brigham Young, militia leader Daniel H. Wells drafted an order for the Utah Territorial Militia to exterminate Timpanogos men deemed hostile, leading to the Provo River Massacre.
North America · Utah TerritoryWikipedia: Ute Wars - 1862
Alvan Graham Clark discovers the white dwarf star Sirius B, a companion of Sirius, through an 18.5-inch (47 cm) telescope now located at Northwestern University.
North America · Northwestern UniversityWikipedia: Northwestern University - 1865
American Civil War: Confederate General Robert E. Lee becomes general-in-chief of all Confederate armies.
no place on the mapWikipedia: Confederate States of America - 1865
American Civil War: The United States Congress passes the Thirteenth Amendment to the United States Constitution, abolishing slavery, and submits it to the states for ratification.
North America · United States CongressWikipedia: American Civil War - 1891
History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
Europe · PortoWikipedia: History of Portugal - 1900
Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
no place on the mapWikipedia: Mat Salleh Rebellion - 1901
Anton Chekhov's Three Sisters premieres at Moscow Art Theatre in Russia.
Europe · Moscow Art TheatreWikipedia: Moscow Art Theatre - 1915
World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
Europe · Battle of Humin-BolimówWikipedia: World War I - 1917
World War I: Kaiser Wilhelm II orders the resumption of unrestricted submarine warfare.
no place on the mapWikipedia: U-boat campaign - 1918
A series of accidental collisions due to poor visibility leads to the loss of two Royal Navy submarines with over a hundred lives, and damage to another five British warships.
Britain & Ireland · Battle of May IslandWikipedia: Battle of May Island - 1918
Finnish Civil War: The Suinula massacre, which changes the nature of the war in a more hostile direction, takes place in Kangasala.
Europe · KangasalaWikipedia: Finnish Civil War - 1919
The Battle of George Square takes place in Glasgow, Scotland, during a campaign for shorter working hours.
Britain & Ireland · GlasgowWikipedia: Battle of George Square - 1928
Leon Trotsky is exiled to Alma-Ata.
Asia · AlmatyWikipedia: Leon Trotsky - 1942
World War II: Allied forces are defeated by the Japanese at the Battle of Malaya and retreat to Singapore.
no place on the mapWikipedia: World War II - 1943
World War II: German field marshal Friedrich Paulus surrenders to the Soviets at Stalingrad, followed two days later by the remainder of his Sixth Army, ending one of the war's fiercest battles.
Europe · Battle of StalingradWikipedia: Battle of Stalingrad - 1944
World War II: American forces land on Kwajalein Atoll and other islands in the Japanese-held Marshall Islands.
Oceans · Kwajalein AtollWikipedia: Kwajalein Atoll - 1944
World War II: During the Anzio campaign, the 1st Ranger Battalion (Darby's Rangers) is destroyed behind enemy lines in a heavily outnumbered encounter at Battle of Cisterna, Italy.
Europe · Battle of AnzioWikipedia: Battle of Anzio - 1945
US Army private Eddie Slovik is executed for desertion, the first such execution of an American soldier since the Civil War.
no place on the mapWikipedia: American Civil War - 1945
World War II: About 3,000 inmates from the Stutthof concentration camp are forcibly marched into the Baltic Sea at Palmnicken (now Yantarny, Russia) and executed.
Europe · Stutthof concentration campWikipedia: Stutthof concentration camp - 1945
World War II: The end of fighting in the Battle of Hill 170 during the Burma Campaign, in which the British 3 Commando Brigade repulsed a Japanese counterattack on their positions and precipitated a general retirement from the Arakan Peninsula.
Asia · Battle of Hill 170Wikipedia: Battle of Hill 170 - 1946
Cold War: Yugoslavia's new constitution, modeling that of the Soviet Union, establishes six constituent republics (Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Serbia and Slovenia).
Europe · Socialist Republic of MacedoniaWikipedia: 1946 Yugoslav Constitution - 1946
The Democratic Republic of Vietnam introduces the đồng to replace the French Indochinese piastre at par.
Asia · North VietnamWikipedia: North Vietnam - 1949
These Are My Children, the first television daytime soap opera, is broadcast by the NBC station in Chicago, United States.
no place on the mapWikipedia: These Are My Children - 1951
United Nations Security Council Resolution 90 relating to the Korean War is adopted.
no place on the mapWikipedia: Korean War - 1953
A North Sea flood causes over 1,800 deaths in the Netherlands and over 300 in the United Kingdom.
Europe · North Sea flood of 1953Wikipedia: North Sea flood of 1953 - 1957
Eight people (five total crew from two aircraft and three on the ground) in Pacoima, California are killed following the mid-air collision between a Douglas DC-7 airliner and a Northrop F-89 Scorpion fighter jet.
North America · 1957 Pacoima mid-air collisionWikipedia: 1957 Pacoima mid-air collision - 1958
Cold War: Space Race: The Explorer 1, the first successful American satellite, detects the Van Allen radiation belt.
no place on the mapWikipedia: Space Race - 1961
Project Mercury: Mercury-Redstone 2: The chimpanzee Ham travels into outer space.
no place on the mapWikipedia: Project Mercury - 1966
The Soviet Union launches the unmanned Luna 9 spacecraft as part of the Luna program.
Asia · Soviet UnionWikipedia: Soviet Union - 1968
Vietnam War: Viet Cong guerrillas attack the United States embassy in Saigon, and other attacks, in the early morning hours, later grouped together as the Tet Offensive.
Asia · Ho Chi Minh CityWikipedia: Vietnam War - 1971
Apollo program: Apollo 14: Astronauts Alan Shepard, Stuart Roosa, and Edgar Mitchell, aboard a Saturn V, lift off for a mission to the Fra Mauro Highlands on the Moon.
no place on the mapWikipedia: Apollo program - 1971
The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize alleged war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.
North America · DetroitWikipedia: Winter Soldier Investigation - 1978
The Crown of St. Stephen (also known as the Holy Crown of Hungary) goes on public display after being returned to Hungary from the United States, where it was held after World War II.
no place on the mapWikipedia: Holy Crown of Hungary - 1988
Doug Williams becomes the first African American quarterback to play in a Super Bowl and leads the Washington Redskins to victory in Super Bowl XXII.
North America · San Diego StadiumWikipedia: Super Bowl XXII - 1996
An explosives-filled truck rams into the gates of the Central Bank of Sri Lanka in Colombo, killing at least 86 people and injuring 1,400.
Asia · Colombo Central Bank bombingWikipedia: Colombo Central Bank bombing - 1997
Final Fantasy VII, the first video game in the Final Fantasy franchise to use 3-D computer graphics, was released.
no place on the mapWikipedia: Final Fantasy VII - 2000
Alaska Airlines Flight 261 crash: An MD-83, experiencing horizontal stabilizer problems, crashes in the Pacific Ocean off the coast of Point Mugu, California, killing all 88 aboard.
North America · Alaska Airlines Flight 261Wikipedia: Alaska Airlines Flight 261 - 2001
In the Netherlands, a Scottish court convicts Libyan Abdelbaset al-Megrahi and acquits another Libyan citizen for their part in the bombing of Pan Am Flight 103 over Lockerbie, Scotland in 1988.
Britain & Ireland · Pan Am Flight 103Wikipedia: Pan Am Flight 103 - 2001
Two Japan Airlines planes nearly collide over Suruga Bay in Japan.
Asia · 2001 Japan Airlines mid-air incidentWikipedia: 2001 Japan Airlines mid-air incident - 2003
The Waterfall rail accident occurs near Waterfall, New South Wales, Australia.
Oceania · Waterfall, New South WalesWikipedia: Waterfall rail accident - 2007
Emergency officials in Boston mistakenly identify battery-powered LED placards depicting characters from Aqua Teen Hunger Force as Improvised explosive devices (IEDs), causing a panic.
North America · CambridgeWikipedia: 2007 Boston Mooninite panic - 2009
At least 113 people are killed in Kenya and over 200 injured following an oil spillage ignition in Molo, days after a massive fire at a Nakumatt supermarket in Nairobi killed at least 25 people.
Africa · NairobiWikipedia: 2009 Nakumatt supermarket fire - 2013
A gas leak underneath the Pemex Executive Tower in Mexico City caused an explosion that killed at least 37 people and injured another 121.
Latin America · Torre Ejecutiva Pemex explosionWikipedia: Torre Ejecutiva Pemex explosion - 2019
Abdullah of Pahang is sworn in as the 16th Yang di-Pertuan Agong of Malaysia.
no place on the mapWikipedia: Abdullah of Pahang - 2020
The United Kingdom's membership within the European Union ceases in accordance with Article 50, after 47 years of being a member state.
no place on the mapWikipedia: United Kingdom - 2022
Sue Gray, a senior civil servant in the United Kingdom, publishes an initial version of her report on the Downing Street Partygate controversy.
Britain & Ireland · Downing StreetWikipedia: Sue Gray, Baroness Gray of Tottenham - 2023
The last Boeing 747, the first wide-body airliner, is delivered to Atlas Air and operated for ApexLogistics. The aircraft was registered as N863GT and named "Empower".
no place on the mapWikipedia: Boeing 747 - 2025
Med Jets Flight 056 crashes near Roosevelt Mall in Philadelphia, Pennsylvania, killing 8 people and injuring 23.
North America · Med Jets Flight 056Wikipedia: Med Jets Flight 056
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 Romanian and were translated for this page.
- 1801
John Marshall becomes the fourth Chief Justice of the United States, going on to establish the position of the Supreme Court within the separation of powers under the United States Constitution.
North America · Supreme Court of the United StatesTranslated from the list on Wikipedia in ChineseWikipedia: 美国最高法院 - 1977
The Georges Pompidou Cultural Centre, designed by Renzo Piano, Richard Rogers and Gianfranco Franchini, opens in Paris.
Who was born on 31 January
In order of how many Wikipedia editions have an article about each. The first 60 of 192 are shown.
- 1797
Franz Schubert, Austrian pianist and composer (died 1828)
HimmelpfortgrundWikipedia: Franz Schubert - 1981
Justin Timberlake, American singer-songwriter, dancer, and actor
MemphisWikipedia: Justin Timberlake - 1935
Kenzaburō Ōe, Japanese author and academic, Nobel Prize laureate (died 2023)
- 1938
Beatrix of the Netherlands
- 1923
Norman Mailer, American journalist and author (died 2007)
Long BranchWikipedia: Norman Mailer - 1975
Preity Zinta, Indian actress, producer, and television host
ShimlaWikipedia: Preity Zinta - 1543
Tokugawa Ieyasu, Japanese shōgun (died 1616)
Okazaki CastleWikipedia: Tokugawa Ieyasu - 1881
Irving Langmuir, American chemist and physicist, Nobel Prize laureate (died 1957)
BrooklynWikipedia: Irving Langmuir - 1902
Alva Myrdal, Swedish sociologist and politician, Nobel Prize laureate (died 1986)
Uppsala Cathedral AssemblyWikipedia: Alva Myrdal - 1929
Rudolf Mössbauer, German physicist and academic, Nobel Prize laureate (died 2011)
- 1884
Theodor Heuss, German journalist and politician, 1st President of the Federal Republic of Germany (died 1963)
BrackenheimWikipedia: Theodor Heuss - 1977
Kerry Washington, American actress
The BronxWikipedia: Kerry Washington - 1937
Philip Glass, American composer
BaltimoreWikipedia: Philip Glass - 2000
Julián Alvarez, Argentine footballer
CalchínWikipedia: Julián Alvarez - 1868
Theodore William Richards, American chemist and academic, Nobel Prize laureate (died 1928)
GermantownWikipedia: Theodore William Richards - 1929
Jean Simmons, English-American actress (died 2010)
LondonWikipedia: Jean Simmons - 1956
John Lydon, English singer-songwriter
HollowayWikipedia: John Lydon - 1973
Portia de Rossi, Australian-American actress
HorshamWikipedia: Portia de Rossi - 1937
Suzanne Pleshette, American actress (died 2008)
New York CityWikipedia: Suzanne Pleshette - 1983
Fabio Quagliarella, Italian footballer
Castellammare di StabiaWikipedia: Fabio Quagliarella - 1919
Jackie Robinson, American baseball player and sportscaster (died 1972)
- 1956
Guido van Rossum, Dutch programmer, creator of the Python programming language
HaarlemWikipedia: Guido van Rossum - 1902
Tallulah Bankhead, American actress (died 1968)
HuntsvilleWikipedia: Tallulah Bankhead - 1970
Minnie Driver, English singer-songwriter and actress
MaryleboneWikipedia: Minnie Driver - 1947
Jonathan Banks, American actor
Washington, D.C.Wikipedia: Jonathan Banks - 1980
James Adomian, American comedian, actor, and screenwriter
- 1512
Henry, King of Portugal (died 1580)
- 1921
Carol Channing, American actress, singer, and dancer (died 2019)
SeattleWikipedia: Carol Channing - 1921
Mario Lanza, American tenor and actor (died 1959)
PhiladelphiaWikipedia: Mario Lanza - 1884
Mammad Amin Rasulzade, Azerbaijani scholar and politician, 1st President of The Democratic Republic of Azerbaijan (died 1955)
- 1686
Hans Egede, Norwegian missionary and explorer (died 1758)
Harstad MunicipalityWikipedia: Hans Egede - 1872
Zane Grey, American author (died 1939)
ZanesvilleWikipedia: Zane Grey - 1892
Eddie Cantor, American singer-songwriter, actor, and dancer (died 1964)
ManhattanWikipedia: Eddie Cantor - 1959
Anthony LaPaglia, Australian actor and producer
AdelaideWikipedia: Anthony LaPaglia - 1979
Daniel Tammet, English author and educator
LondonWikipedia: Daniel Tammet - 1673
Louis de Montfort, French priest and saint (died 1716)
Montfort-sur-MeuWikipedia: Louis de Montfort - 1976
Traianos Dellas, Greek footballer and manager
ThessalonikiWikipedia: Traianos Dellas - 1769
André-Jacques Garnerin, French balloonist and the inventor of the frameless parachute (died 1823)
- 1799
Rodolphe Töpffer, Swiss teacher, author, painter, cartoonist, and caricaturist (died 1846)
- 1949
Ken Wilber, American sociologist, philosopher, and author
Oklahoma CityWikipedia: Ken Wilber - 1961
Fatou Bensouda, Gambian lawyer and judge
- 1971
Patricia Velásquez, Venezuelan model and actress
MaracaiboWikipedia: Patricia Velásquez - 1959
Kelly Lynch, American model and actress
Golden ValleyWikipedia: Kelly Lynch - 1997
Arnaut Danjuma, Dutch footballer
- 1922
Joanne Dru, American actress (died 1996)
- 1942
Daniela Bianchi, Italian actress
- 1945
Joseph Kosuth, American sculptor and theorist
ToledoWikipedia: Joseph Kosuth - 1905
John O'Hara, American author, playwright, and screenwriter (died 1970)
PottsvilleWikipedia: John O'Hara - 1915
Alan Lomax, American historian, author, and scholar (died 2002)
AustinWikipedia: Alan Lomax - 1921
John Agar, American actor (died 2002)
ChicagoWikipedia: John Agar - 1941
Jessica Walter, American actress (died 2021)
BrooklynWikipedia: Jessica Walter - 1966
Dexter Fletcher, English actor and director
London Borough of EnfieldWikipedia: Dexter Fletcher - 1752
Gouverneur Morris, American lawyer, politician, and diplomat, United States Ambassador to France (died 1816)
MorrisaniaWikipedia: Gouverneur Morris - 1942
Derek Jarman, English director, stage designer, and author (died 1994)
NorthwoodWikipedia: Derek Jarman - 1960
Željko Šturanović, Montenegrin politician, 31st Prime Minister of Montenegro (died 2014)
- 1985
Adam Federici, Australian footballer
SydneyWikipedia: Adam Federici - 1986
Walter Dix, American sprinter
Coral SpringsWikipedia: Walter Dix - 1996
Joel Courtney, American actor
MontereyWikipedia: Joel Courtney - 1997
Miyeon, South Korean singer and actress
Seodaemun DistrictWikipedia: Miyeon - 1955
Virginia Ruzici, Romanian tennis player and manager
Câmpia TurziiWikipedia: Virginia Ruzici
What is celebrated on 31 January
- Christian feast day: Domitius (Domice) of Amiens
- Christian feast day: Francis Xavier Bianchi
- Christian feast day: Geminianus
- Christian feast day: John Bosco
- Christian feast day: Julius of Novara
- Christian feast day: Blessed Ludovica
- Christian feast day: Máedóc (Mogue, Aiden)
- Christian feast day: Marcella of Marseille
- Christian feast day: Marcella of Rome
- Christian feast day: Samuel Shoemaker (Episcopal Church (USA))
- Christian feast day: Tysul
- Christian feast day: Ulphia
- Christian feast day: Wilgils
- Christian feast day: January 31 (Eastern Orthodox liturgics)
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.