A birthday on the globe
17 November on the globe: what happened in the world on this day, and who was born
For 17 November, the English Wikipedia lists 64 events and 247 births. 32 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 17 November through the years
The Earth on 17 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 17 November the Sun passes straight overhead at noon along the parallel of 19.0° south. In London, the day lasts about 8 hours 50 minutes.
Beyond 71° south the Sun no longer sets; beyond 71° 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.
17 November
Britain and Ireland#
Two events from the day’s list are placed here, between 1953 and 2009.
Britain & Ireland · Blasket Islands
1953
The remaining human inhabitants of the Blasket Islands, County Kerry, Ireland, are evacuated to the mainland.
On the map: Blasket Islands.
Also on the day’s list of Wikipedia in Spanish.
Britain & Ireland · University of East Anglia
2009
Administrators at the University of East Anglia's Climatic Research Unit discovered that their servers had been hacked, and thousands of emails and files on climate change had been stolen.
On the map: University of East Anglia.
Europe · Kuopio
1775
The city of Kuopio, Finland (belonging to Sweden at this time) is founded by King Gustav III of Sweden.
On the map: Kuopio.
Also on the day’s list of Wikipedia in Spanish.
Europe · Tartu
1940
The Tartu Art Museum is established in Tartu, Estonia.
On the map: Tartu.
Asia · Wuhan
2019
The first known case of COVID-19 is traced to a 55-year-old man who had visited a market in Wuhan, Hubei Province, China.
On the map: Wuhan.
Also on the day’s list of Wikipedia in Spanish and Romanian.
North America · United States Congress
1800
The United States Congress holds its first session in Washington, D.C.
On the map: United States Congress.
Also on the day’s list of Wikipedia in Spanish, Romanian and Chinese.
North America · Denver
1858
The city of Denver, Colorado is founded.
On the map: Denver.
Also on the day’s list of Wikipedia in Chinese.
North America · Dulles International Airport
1962
President John F. Kennedy dedicates Washington Dulles International Airport, serving the Washington, D.C., region.
On the map: Dulles International Airport.
Also on the day’s list of Wikipedia in Spanish and Chinese.
17 November
Born on 17 November#
The English Wikipedia lists 247 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 17 November
1942
Martin Scorsese, American director, producer, screenwriter, and actor
Place of birth: Queens.
Born on 17 November
1902
Eugene Wigner, Hungarian physicist and mathematician, Nobel Prize laureate (died 1995)
Place of birth: Budapest.
Born on 17 November
1978
Rachel McAdams, Canadian actress
Place of birth: London.
Born on 17 November
1944
Danny DeVito, American actor, director, and producer
Place of birth: Neptune Township.
Born on 17 November
1749
Nicolas Appert, French chef, invented canning (died 1841)
Place of birth: Châlons-en-Champagne.
Born in Britain and Ireland
1945
Roland Joffé, English-French director, producer, and screenwriter
Place of birth: London.
Born in Britain and Ireland
1983
Harry Lloyd, English actor, producer, and screenwriter
Place of birth: London.
17 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: 17 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 17 November
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 27 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.
- 887
Emperor Charles the Fat is deposed by the Frankish magnates in an assembly at Frankfurt, leading his nephew, Arnulf of Carinthia, to declare himself king of the East Frankish Kingdom in late November.
Europe · FrankfurtWikipedia: Charles the Fat - 1183
Genpei War: The Battle of Mizushima takes place off the Japanese coast, where Minamoto no Yoshinaka's invasion force is intercepted and defeated by the Taira clan.
Asia · Battle of MizushimaWikipedia: Battle of Mizushima - 1292
John Balliol becomes King of Scotland.
no place on the mapWikipedia: John Balliol - 1405
Sharif ul-Hāshim establishes the Sultanate of Sulu.
Asia · Sultanate of SuluWikipedia: Sultanate of Sulu - 1494
French King Charles VIII occupies Florence, Italy.
no place on the mapWikipedia: Italian War of 1494–1495 - 1511
Henry VIII of England concludes the Treaty of Westminster, a pledge of mutual aid against the French, with Ferdinand II of Aragon.
no place on the mapWikipedia: War of the League of Cambrai - 1558
Elizabethan era begins: Queen Mary I of England dies and is succeeded by her half-sister Elizabeth I.
no place on the mapWikipedia: Elizabethan era - 1592
Sigismund III Vasa, who was already King of Poland, succeeded his father John III as King of Sweden.
no place on the mapWikipedia: Sigismund III Vasa - 1603
English explorer, writer and courtier Sir Walter Raleigh goes on trial for treason.
no place on the mapWikipedia: Courtier - 1775
The city of Kuopio, Finland (belonging to Sweden at this time) is founded by King Gustav III of Sweden.
Europe · KuopioWikipedia: Kuopio - 1777
Articles of Confederation (United States) are submitted to the states for ratification.
no place on the mapWikipedia: Articles of Confederation - 1796
French Revolutionary Wars: Battle of the Bridge of Arcole: French forces defeat the Austrians in Italy.
Europe · Battle of ArcoleWikipedia: French Revolutionary Wars - 1800
The United States Congress holds its first session in Washington, D.C.
North America · United States CongressWikipedia: United States Congress - 1810
Sweden declares war on its ally the United Kingdom to begin the Anglo-Swedish War, although no fighting ever takes place.
no place on the mapWikipedia: Anglo-Swedish war of 1810–1812 - 1811
José Miguel Carrera, Chilean founding father, is sworn in as President of the executive Junta of the government of Chile.
Latin America · ChileWikipedia: José Miguel Carrera - 1820
Captain Nathaniel Palmer becomes the first American to see Antarctica. (The Palmer Peninsula is later named after him.)
no place on the mapWikipedia: Antarctic Peninsula - 1831
Ecuador and Venezuela are separated from Gran Colombia.
no place on the mapWikipedia: Ecuador - 1837
An earthquake in Valdivia, south-central Chile, causes a tsunami that leads to significant destruction along Japan's coast.
Latin America · 1837 Valdivia earthquakeWikipedia: 1837 Valdivia earthquake - 1856
American Old West: On the Sonoita River in present-day southern Arizona, the United States Army establishes Fort Buchanan in order to help control new land acquired in the Gadsden Purchase.
North America · Fort Buchanan, ArizonaWikipedia: Gadsden Purchase - 1858
Modified Julian Day zero.
no place on the mapWikipedia: Julian day - 1858
The city of Denver, Colorado is founded.
North America · DenverWikipedia: Denver - 1863
American Civil War: Siege of Knoxville begins: During the Knoxville campaign, Confederate forces under General James Longstreet besiege the city of Knoxville, Tennessee and its Union defenders led by General Ambrose Burnside.
North America · Knoxville campaignWikipedia: American Civil War - 1869
In Egypt, the Suez Canal, linking the Mediterranean Sea with the Red Sea, is inaugurated.
no place on the mapWikipedia: Egypt - 1878
First assassination attempt against Umberto I of Italy by anarchist Giovanni Passannante, who was armed with a dagger. The King survived with a slight wound in an arm. Prime Minister Benedetto Cairoli blocked the aggressor, receiving an injury in a leg.
no place on the mapWikipedia: Umberto I of Italy - 1885
Serbo-Bulgarian War: The decisive Battle of Slivnitsa begins.
Europe · Battle of SlivnitsaWikipedia: Serbo-Bulgarian War - 1894
H. H. Holmes, one of the first modern serial killers, is arrested in Boston, Massachusetts.
North America · BostonWikipedia: H. H. Holmes - 1896
The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
North America · PittsburghWikipedia: Schenley Park Casino - 1903
The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
no place on the mapWikipedia: Russian Social Democratic Labour Party - 1921
Rioting broke out in Bombay, India, during the visit of Edward, Prince of Wales, leading to at least 58 deaths.
no place on the mapWikipedia: Prince of Wales riots - 1939
Nine Czech students are executed as a response to anti-Nazi demonstrations prompted by the death of Jan Opletal. All Czech universities are shut down and more than 1,200 students sent to concentration camps. Since this event, International Students' Day is celebrated in many countries, especially in the Czech Republic.
Europe · Protectorate of Bohemia and MoraviaWikipedia: Czechs - 1940
The Tartu Art Museum is established in Tartu, Estonia.
Europe · TartuWikipedia: Tartu Art Museum - 1941
World War II: Hjalmar Siilasvuo ordered Finnish forces to halt their assault against Soviet forces near Salla, concluding Operation Arctic Fox.
Europe · SallaWikipedia: World War II - 1943
World War II: Australian forces launched an assault on Sattelberg, New Guinea, against Japanese forces, initiating the Battle of Sattelberg.
Oceania · SattelbergWikipedia: World War II - 1947
American scientists John Bardeen and Walter Houser Brattain observe the basic principles of the transistor, a key element for the electronics revolution of the 20th century.
no place on the mapWikipedia: John Bardeen - 1947
The Screen Actors Guild implements an anti-Communist loyalty oath.
no place on the mapWikipedia: Screen Actors Guild - 1950
Lhamo Dondrub is officially named the 14th Dalai Lama.
no place on the mapWikipedia: 14th Dalai Lama - 1950
United Nations Security Council Resolution 89 relating to the Palestine Question is adopted.
no place on the mapWikipedia: United Nations Security Council Resolution 89 - 1953
The remaining human inhabitants of the Blasket Islands, County Kerry, Ireland, are evacuated to the mainland.
Britain & Ireland · Blasket IslandsWikipedia: Blasket Islands - 1957
Vickers Viscount G-AOHP of British European Airways crashes at Ballerup after the failure of three engines on approach to Copenhagen Airport. The cause is a malfunction of the anti-icing system on the aircraft. There are no fatalities.
Europe · Copenhagen AirportWikipedia: Vickers Viscount - 1962
President John F. Kennedy dedicates Washington Dulles International Airport, serving the Washington, D.C., region.
North America · Dulles International AirportWikipedia: Dulles International Airport - 1967
Vietnam War: Acting on optimistic reports that he had been given on November 13, U.S. President Lyndon B. Johnson tells the nation that, while much remained to be done, "We are inflicting greater losses than we're taking...We are making progress."
no place on the mapWikipedia: Vietnam War - 1968
British European Airways introduces the BAC One-Eleven into commercial service.
no place on the mapWikipedia: BAC One-Eleven - 1968
Viewers of the Raiders–Jets football game in the eastern United States are denied the opportunity to watch its exciting finish when NBC broadcasts Heidi instead, prompting changes to sports broadcasting in the U.S.
North America · Oakland ColiseumWikipedia: Heidi Game - 1969
Cold War: Negotiators from the Soviet Union and the United States meet in Helsinki, Finland to begin SALT I negotiations aimed at limiting the number of strategic weapons on both sides.
Europe · HelsinkiWikipedia: Strategic Arms Limitation Talks - 1970
Luna programme: The Soviet Union lands Lunokhod 1 on Mare Imbrium (Sea of Rains) on the Moon. This is the first roving remote-controlled robot to land on another world and is released by the orbiting Luna 17 spacecraft.
no place on the mapWikipedia: Luna programme - 1970
Vietnam War: Lieutenant William Calley goes on trial for the My Lai Massacre.
Asia · My Lai massacreWikipedia: Vietnam War - 1973
The Athens Polytechnic uprising against the military regime ends in a bloodshed in the Greek capital.
Europe · Athens Polytechnic uprisingWikipedia: Greek junta - 1973
Watergate scandal: In Orlando, Florida, U.S. President Richard Nixon tells 400 Associated Press managing editors "I am not a crook."
North America · Orlando, FloridaWikipedia: Watergate scandal - 1983
The Zapatista Army of National Liberation is founded in Mexico.
no place on the mapWikipedia: Zapatista Army of National Liberation - 1986
The flight crew of Japan Airlines Flight 1628 are involved in a UFO sighting incident while flying over Alaska.
North America · Japan Air Lines Cargo Flight 1628Wikipedia: Japan Air Lines Cargo Flight 1628 - 1989
Cold War: Velvet Revolution begins: In Czechoslovakia, a student demonstration in Prague is quelled by riot police. This sparks an uprising aimed at overthrowing the communist government (it succeeds on December 29).
Europe · PragueWikipedia: Velvet Revolution - 1989
Walt Disney Pictures released The Little Mermaid to theatres, beginning the Disney Renaissance.
no place on the mapWikipedia: Walt Disney Pictures - 1990
Fugendake, part of the Mount Unzen volcanic complex, Nagasaki Prefecture, Japan, becomes active again and erupts.
Asia · Mount UnzenWikipedia: Mount Unzen - 1993
In Nigeria, General Sani Abacha ousts the government of Ernest Shonekan in a military coup.
no place on the mapWikipedia: Sani Abacha - 1993
United States House of Representatives passes a resolution to establish the North American Free Trade Agreement.
no place on the mapWikipedia: United States House of Representatives - 1997
In Luxor, Egypt, 62 people are killed by six Islamic militants outside the Temple of Hatshepsut, known as Luxor massacre.
Africa · Luxor massacreWikipedia: Luxor massacre - 2000
A catastrophic landslide in Log pod Mangartom, Slovenia, kills seven, and causes millions of SIT of damage. It is one of the worst catastrophes in Slovenia in the past 100 years.
Europe · Log pod MangartomWikipedia: Landslide - 2000
Alberto Fujimori is removed from office as president of Peru.
Latin America · PeruWikipedia: Alberto Fujimori - 2003
Actor Arnold Schwarzenegger's tenure as the governor of California begins.
no place on the mapWikipedia: Arnold Schwarzenegger - 2009
Administrators at the University of East Anglia's Climatic Research Unit discovered that their servers had been hacked, and thousands of emails and files on climate change had been stolen.
Britain & Ireland · University of East AngliaWikipedia: Climatic Research Unit email controversy - 2012
At least 50 schoolchildren are killed in an accident at a railway crossing near Manfalut, Egypt.
Africa · ManfalutWikipedia: Manfalut train–bus collision - 2013
A rare late-season tornado outbreak strikes the Midwest. Illinois and Indiana are most affected with tornado reports as far north as lower Michigan. In all around six dozen tornadoes touch down in approximately an 11-hour time period, including seven EF3 and two EF4 tornadoes.
North America · Midwestern United StatesWikipedia: Tornado outbreak of November 17, 2013 - 2013
Fifty people are killed when Tatarstan Airlines Flight 363 crashes at Kazan Airport, Russia.
Europe · Tatarstan Airlines Flight 363Wikipedia: Tatarstan Airlines Flight 363 - 2019
The first known case of COVID-19 is traced to a 55-year-old man who had visited a market in Wuhan, Hubei Province, China.
Asia · WuhanWikipedia: COVID-19
Who was born on 17 November
In order of how many Wikipedia editions have an article about each. The first 60 of 247 are shown.
- 1942
Martin Scorsese, American director, producer, screenwriter, and actor
- 9
Vespasian, Roman emperor (died 79)
FalacrineWikipedia: Vespasian - 1952
Cyril Ramaphosa, South African businessman and politician, fifth President of South Africa
- 1902
Eugene Wigner, Hungarian physicist and mathematician, Nobel Prize laureate (died 1995)
BudapestWikipedia: Eugene Wigner - 1978
Rachel McAdams, Canadian actress
- 1755
Louis XVIII, king of France (died 1824)
Palace of VersaillesWikipedia: Louis XVIII - 1944
Danny DeVito, American actor, director, and producer
Neptune TownshipWikipedia: Danny DeVito - 1749
Nicolas Appert, French chef, invented canning (died 1841)
Châlons-en-ChampagneWikipedia: Nicolas Appert - 1887
Bernard Montgomery, 1st Viscount Montgomery of Alamein, English field marshal (died 1976)
KenningtonWikipedia: Bernard Montgomery - 1896
Lev Vygotsky, Belarusian-Russian psychologist and philosopher (died 1934)
VorshaWikipedia: Lev Vygotsky - 1945
Abdelmadjid Tebboune, Algerian politician, 8th President of Algeria
MécheriaWikipedia: Abdelmadjid Tebboune - 1966
Sophie Marceau, French actress, director, and screenwriter
15th arrondissement of ParisWikipedia: Sophie Marceau - 1986
Nani, Portuguese footballer
PraiaWikipedia: Nani - 1925
Rock Hudson, American actor (died 1985)
WinnetkaWikipedia: Rock Hudson - 1503
Bronzino, Italian painter (died 1572)
FlorenceWikipedia: Bronzino - 1790
August Ferdinand Möbius, German mathematician and astronomer (died 1868)
SchulpforteWikipedia: August Ferdinand Möbius - 1922
Stanley Cohen, American biochemist and academic, Nobel Prize laureate (died 2020)
BrooklynWikipedia: Stanley Cohen - 1983
Christopher Paolini, American author
Los AngelesWikipedia: Christopher Paolini - 1944
Rem Koolhaas, Dutch architect and academic, designed the Seattle Central Library
RotterdamWikipedia: Rem Koolhaas - 1906
Soichiro Honda, Japanese engineer and businessman, co-founded the Honda Motor Company (died 1991)
ShizuokaWikipedia: Soichiro Honda - 1905
Astrid of Sweden (died 1935)
Arvfurstens palatsWikipedia: Astrid of Sweden - 1960
RuPaul, American drag queen performer, actor, and singer
San DiegoWikipedia: RuPaul - 1966
Jeff Buckley, American singer-songwriter and guitarist (died 1997)
AnaheimWikipedia: Jeff Buckley - 1949
Nguyễn Tấn Dũng, Vietnamese soldier and politician, eighth Prime Minister of Vietnam
- 1901
Lee Strasberg, Ukrainian-American actor and director (died 1982)
BudanivWikipedia: Lee Strasberg - 1949
John Boehner, American businessman and politician, 53rd Speaker of the United States House of Representatives
ReadingWikipedia: John Boehner - 1587
Joost van den Vondel, Dutch poet and playwright (died 1679)
- 1964
Susan Rice, American academic and politician, 24th United States National Security Advisor
Washington, D.C.Wikipedia: Susan Rice - 1923
Aristides Pereira, Cape Verdean politician, first President of Cape Verde (died 2011)
Boa VistaWikipedia: Aristides Pereira - 1938
Gordon Lightfoot, Canadian singer-songwriter and guitarist (died 2023)
OrilliaWikipedia: Gordon Lightfoot - 1958
Mary Elizabeth Mastrantonio, American actress and singer
- 1973
Leslie Bibb, American actress and producer
BismarckWikipedia: Leslie Bibb - 1997
Julian Ryerson, Norwegian footballer
Flekkefjord MunicipalityWikipedia: Julian Ryerson - 1765
Jacques MacDonald, French general (died 1840)
- 1866
Voltairine de Cleyre, American author and activist (died 1912)
- 1928
Rance Howard, American actor, producer, and screenwriter (died 2017)
DuncanWikipedia: Rance Howard - 1978
Tom Ellis, Welsh actor
CardiffWikipedia: Tom Ellis - 1019
Sima Guang, Chinese politician (died 1086)
Xia CountyWikipedia: Sima Guang - 1901
Walter Hallstein, German academic and politician, first President of the European Commission (died 1982)
- 1951
Stephen Root, American actor
SarasotaWikipedia: Stephen Root - 1965
Pam Bondi, American politician and attorney, 87th U.S. Attorney General
- 1973
Bernd Schneider, German footballer
- 2004
Linda Nosková, Czech tennis player
VsetínWikipedia: Linda Nosková - 1857
Joseph Babinski, French neurologist and academic (died 1932)
former 11th arrondissement of ParisWikipedia: Joseph Babinski - 1934
Jim Inhofe, American soldier and politician, senior senator of Oklahoma (died 2024)
Des MoinesWikipedia: Jim Inhofe - 1943
Lauren Hutton, American model and actress
CharlestonWikipedia: Lauren Hutton - 1963
Dylan Walsh, American actor
Los AngelesWikipedia: Dylan Walsh - 1969
Rebecca Walker, American author
JacksonWikipedia: Rebecca Walker - 1930
Bob Mathias, American decathlete, actor, and politician (died 2006)
TulareWikipedia: Bob Mathias - 1935
Toni Sailer, Austrian skier and actor (died 2009)
KitzbühelWikipedia: Toni Sailer - 1945
Roland Joffé, English-French director, producer, and screenwriter
LondonWikipedia: Roland Joffé - 1983
Harry Lloyd, English actor, producer, and screenwriter
LondonWikipedia: Harry Lloyd - 1612
Dorgon, Chinese prince and regent (died 1650)
Hetu Ala CityWikipedia: Dorgon - 1961
Pat Toomey, American businessman and politician
ProvidenceWikipedia: Pat Toomey - 1971
David Ramsey, American actor
DetroitWikipedia: David Ramsey - 1986
Greg Rutherford, English long jumper
Milton KeynesWikipedia: Greg Rutherford - 1904
Isamu Noguchi, American sculptor and architect (died 1988)
Los AngelesWikipedia: Isamu Noguchi - 1946
Terry Branstad, American soldier, lawyer, and politician, 39th Governor of Iowa and U.S. Ambassador to China (2017-2020)
- 1948
Howard Dean, American physician and politician, 79th Governor of Vermont
East HamptonWikipedia: Howard Dean - 1950
Roland Matthes, German swimmer (died 2019)
PößneckWikipedia: Roland Matthes
What is celebrated on 17 November
- Athens Polytechnic Uprising Remembrance Day (Greece)
- Christian feast days: Acisclus
- Christian feast days: Aignan of Orleans
- Christian feast days: Elizabeth of Hungary
- Christian feast days: Gennadius of Constantinople (Greek Orthodox Church)
- Christian feast days: Gregory of Tours (Roman Catholic Church)
- Christian feast days: Gregory Thaumaturgus
- Christian feast days: Hilda of Whitby
- Christian feast days: Hugh of Lincoln
- Christian feast days: November 17 (Eastern Orthodox liturgics)
- International Students' Day
- Martyrs' Day (Odisha, India)
- Presidents Day (Marshall Islands)
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.