A birthday on the globe
11 October on the globe: what happened in the world on this day, and who was born
For 11 October, the English Wikipedia lists 47 events and 239 births. 20 of the events stand at their places as rays of light; four more are dashed circles, where the sentence links only to a country or a sea. The taller the ray, the longer ago it happened. The people born that day come further down, as blue points.
A birthday, yours or someone else’s:
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 11 October through the years
The Earth on 11 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 11 October the Sun passes straight overhead at noon along the parallel of 7.0° south. In London, the day lasts about 11 hours.
Beyond 83° south the Sun no longer sets; beyond 83° 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.
Europe · Reykjavík Summit
1986
Ronald Reagan and Mikhail Gorbachev meet in Iceland to continue discussions about scaling back IRBM arsenals in Europe.
On the map: Reykjavík Summit.
Oceania · University of Sydney
1852
The University of Sydney, Australia's oldest university, is inaugurated in Sydney.
On the map: University of Sydney.
Also on the day’s list of Wikipedia in Spanish and Chinese.
North America · Washington, D.C.
1987
An estimated 750,000 people attended the "Great March" in Washington, D.C., to demand greater civil rights for the LGBT community.
On the map: Washington, D.C..
Wikipedia: Second National March on Washington for Lesbian and Gay Rights
11 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 Spanish and were translated for this page.
From Wikipedia in Spanish · Dueñas
1469
In Dueñas (Spain), King Ferdinand II of Aragon meets Isabella I of Castile, and they decide to marry (they will become the Catholic Monarchs).
On the map: Dueñas.
Translated from the list on Wikipedia in Spanish.
11 October
Born on 11 October#
The English Wikipedia lists 239 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 11 October
1885
François Mauriac, French novelist, poet, and playwright, Nobel Prize laureate (died 1970)
Place of birth: Bordeaux.
Born on 11 October
1937
Bobby Charlton, English footballer and manager (died 2023)
Place of birth: Ashington.
Born on 11 October
1758
Heinrich Wilhelm Matthias Olbers, German physician and astronomer (died 1840)
Place of birth: Arbergen.
Born on 11 October
1896
Roman Jakobson, Russian-American linguist and theorist (died 1982)
Place of birth: Moscow.
Born in Britain and Ireland
1872
Emily Davison, English educator and activist (died 1913)
Place of birth: Blackheath.
Born in Britain and Ireland
1969
Stephen Moyer, English actor
Place of birth: Brentwood.
Born in Britain and Ireland
1957
Dawn French, Welsh-English actress, comedian and screenwriter
Place of birth: Holyhead.
11 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: 11 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 11 October
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 23 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.
- 944
Caliph al-Muttaqi is blinded and deposed by the Turkish general Tuzun.
no place on the mapWikipedia: Al-Muttaqi - 1138
A massive earthquake strikes Aleppo; it is one of the most destructive earthquakes ever.
Asia · 1138 Aleppo earthquakeWikipedia: 1138 Aleppo earthquake - 1142
A peace treaty ends the Jin–Song wars.
no place on the mapWikipedia: Treaty of Shaoxing - 1311
The peerage and clergy restrict the authority of English kings with the Ordinances of 1311.
Britain & Ireland · EnglandWikipedia: England - 1531
The five Catholic cantons defeat the Protestant canton of Zurich in the battle of Kappel.
Europe · Canton of ZurichWikipedia: Second War of Kappel - 1614
The New Netherland Company applies to the States General of the Netherlands for exclusive trading rights in what is now the northeastern United States.
North America · New NetherlandWikipedia: New Netherland Company - 1634
The Burchardi flood kills around 15,000 in North Friesland, Denmark and Germany.
no place on the mapWikipedia: Burchardi flood - 1643
A Parliamentarian cavalry force defeats a Royalist cavalry force in the battle of Winceby.
Britain & Ireland · Battle of WincebyWikipedia: Battle of Winceby - 1649
Cromwell's New Model Army sacks Wexford, killing over 2,000 Irish Confederate troops and 1,500 civilians.
Britain & Ireland · Sack of WexfordWikipedia: Sack of Wexford - 1776
American Revolution: A fleet of American boats on Lake Champlain is defeated by the Royal Navy, but delays the British advance until 1777.
North America · Battle of Valcour IslandWikipedia: American Revolution - 1797
The Royal Navy decisively defeats the Batavian Navy at Camperdown during the French Revolutionary Wars.
Europe · Battle of CamperdownWikipedia: Battle of Camperdown - 1811
The Juliana begins operation as the first steam-powered ferry in New York harbor.
no place on the mapWikipedia: John Stevens - 1840
The Maronite leader Bashir Shihab II surrenders to the Ottoman Empire and later is sent to Malta in exile.
Asia · Ottoman EmpireWikipedia: Bashir Shihab II - 1852
The University of Sydney, Australia's oldest university, is inaugurated in Sydney.
Oceania · University of SydneyWikipedia: University of Sydney - 1862
American Civil War: Confederate troops conduct a raid on Chambersburg, Pennsylvania.
no place on the mapWikipedia: American Civil War - 1865
Hundreds of black men and women march in Jamaica, starting the Morant Bay rebellion.
Latin America · Morant Bay rebellionWikipedia: Morant Bay rebellion - 1890
In Washington, D.C., the Daughters of the American Revolution is founded.
no place on the mapWikipedia: Daughters of the American Revolution - 1899
The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
no place on the mapWikipedia: Second Boer War - 1906
San Francisco sparks a diplomatic crisis between the United States and Japan by ordering segregated schools for Japanese students.
no place on the mapWikipedia: Gentlemen's Agreement of 1907 - 1910
Piloted by Arch Hoxsey, Theodore Roosevelt becomes the first U.S. president to fly in an airplane.
no place on the mapWikipedia: Archibald Hoxsey - 1912
First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
Europe · Battle of SarantaporoWikipedia: Battle of Sarantaporo - 1918
The 7.1 Mw San Fermín earthquake shakes Puerto Rico. The quake and resulting tsunami kill up to 116 people.
Latin America · 1918 San Fermín earthquakeWikipedia: 1918 San Fermín earthquake - 1937
The Duke and Duchess of Windsor tour Nazi Germany for 12 days and meet Adolf Hitler on 22 October.
no place on the mapWikipedia: 1937 tour of Germany by the Duke and Duchess of Windsor - 1941
Beginning of the National Liberation War of Macedonia.
no place on the mapWikipedia: World War II in Yugoslav Macedonia - 1942
World War II: Off Guadalcanal, United States Navy ships intercept and defeat a Japanese force.
Oceania · Battle of Cape EsperanceWikipedia: World War II - 1944
The Tuvan People's Republic is annexed by the Soviet Union.
Asia · Tuvan People's RepublicWikipedia: Tuvan People's Republic - 1950
CBS's field-sequential color system for television is the first to be licensed for broadcast by the U.S. Federal Communications Commission.
no place on the mapWikipedia: Field-sequential color system - 1954
In accord with the 1954 Geneva Conference, French troops complete their withdrawal from North Vietnam.
Europe · GenevaWikipedia: 1954 Geneva Conference - 1958
NASA launches Pioneer 1, its first space probe, although it fails to achieve a stable orbit.
no place on the mapWikipedia: Pioneer 1 - 1962
The Second Vatican Council becomes the first ecumenical council of the Roman Catholic Church in 92 years.
no place on the mapWikipedia: Second Vatican Council - 1968
NASA launches Apollo 7, the first successful crewed Apollo mission.
no place on the mapWikipedia: Apollo 7 - 1973
Typhoon Nora, the fourth-most intense tropical cyclone on record, dissipated after killing 40 people and leaving more than a million homeless across Taiwan and the Philippines.
no place on the mapWikipedia: Typhoon Nora - 1976
George Washington is posthumously promoted to the grade of General of the Armies.
no place on the mapWikipedia: George Washington - 1982
The hull of the Mary Rose is recovered, over four hundred years after her sinking during the battle of the Solent.
Britain & Ireland · Battle of the SolentWikipedia: Battle of the Solent - 1984
Aboard the Space Shuttle Challenger, astronaut Kathryn D. Sullivan becomes the first American woman to perform a space walk.
no place on the mapWikipedia: Kathryn D. Sullivan - 1984
Aeroflot Flight 3352 crashes into maintenance vehicles upon landing in Omsk, Russia, killing 178.
Asia · Aeroflot Flight 3352Wikipedia: Aeroflot Flight 3352 - 1986
Ronald Reagan and Mikhail Gorbachev meet in Iceland to continue discussions about scaling back IRBM arsenals in Europe.
Europe · Reykjavík SummitWikipedia: Reykjavík Summit - 1987
An estimated 750,000 people attended the "Great March" in Washington, D.C., to demand greater civil rights for the LGBT community.
North America · Washington, D.C.Wikipedia: Second National March on Washington for Lesbian and Gay Rights - 1987
Start of Operation Pawan by Indian forces in Sri Lanka. Thousands of civilians, insurgents, soldiers die.
Asia · Jaffna PeninsulaWikipedia: Operation Pawan - 1987
The AIDS Memorial Quilt is first displayed during the Second National March on Washington for Lesbian and Gay Rights.
no place on the mapWikipedia: NAMES Project AIDS Memorial Quilt - 1991
Prof. Anita Hill delivers her televised testimony concerning sexual harassment during the Clarence Thomas Supreme Court nomination.
no place on the mapWikipedia: Anita Hill - 1999
Air Botswana pilot Chris Phatswe steals an ATR 42 from Sir Seretse Khama International Airport and later crashes it into two other aircraft at the airport, killing himself.
Africa · 1999 Air Botswana ATR 42 crashWikipedia: 1999 Air Botswana ATR 42 crash - 2000
NASA launches STS-92, the 100th Space Shuttle mission.
no place on the mapWikipedia: STS-92 - 2001
The Polaroid Corporation files for federal bankruptcy protection.
no place on the mapWikipedia: Polaroid Corporation - 2002
A bomb attack in a Myyrmanni shopping mall in Vantaa, Finland kills seven.
Europe · Myyrmanni bombingWikipedia: Myyrmanni bombing - 2013
A migrant boat sinks in the Channel of Sicily, with at least 359 people drowning.
Europe · 2013 Lampedusa migrant shipwreckWikipedia: 2013 Lampedusa migrant shipwreck - 2018
Soyuz MS-10, launching an intended crew for the ISS, suffers an in-flight abort. The crew lands safely.
no place on the mapWikipedia: Soyuz MS-10
What the other Wikipedias remember
For these years the English list has nothing on this day. The events below come from the same day’s lists on Wikipedia in Spanish and were translated for this page.
- 1469
In Dueñas (Spain), King Ferdinand II of Aragon meets Isabella I of Castile, and they decide to marry (they will become the Catholic Monarchs).
Who was born on 11 October
In order of how many Wikipedia editions have an article about each. The first 60 of 239 are shown.
- 1884
Eleanor Roosevelt, American humanitarian and politician, 32nd First Lady of the United States (died 1962)
ManhattanWikipedia: Eleanor Roosevelt - 1942
Amitabh Bachchan, Indian film actor, producer, television host, and former politician
PrayagrajWikipedia: Amitabh Bachchan - 1885
François Mauriac, French novelist, poet, and playwright, Nobel Prize laureate (died 1970)
BordeauxWikipedia: François Mauriac - 1992
Cardi B, American rapper
Washington HeightsWikipedia: Cardi B - 1937
Bobby Charlton, English footballer and manager (died 2023)
AshingtonWikipedia: Bobby Charlton - 1758
Heinrich Wilhelm Matthias Olbers, German physician and astronomer (died 1840)
- 1896
Roman Jakobson, Russian-American linguist and theorist (died 1982)
- 1884
Friedrich Bergius, German-Argentinian chemist and academic, Nobel Prize laureate (died 1949)
ZłotnikiWikipedia: Friedrich Bergius - 1926
Thích Nhất Hạnh, Vietnamese monk, author, and poet (died 2022)
- 1947
Lucas Papademos, Greek economist and politician, 183rd Prime Minister of Greece
- 1985
Michelle Trachtenberg, American actress (died 2025)
New York CityWikipedia: Michelle Trachtenberg - 1739
Grigory Potemkin, Russian general and politician (died 1791)
ChizhevoWikipedia: Grigory Potemkin - 1962
Joan Cusack, American actress
New York CityWikipedia: Joan Cusack - 1966
Luke Perry, American actor and producer (died 2019)
MansfieldWikipedia: Luke Perry - 1976
Emily Deschanel, American actress and producer
Los AngelesWikipedia: Emily Deschanel - 1881
Hans Kelsen, Czech-American jurist and philosopher (died 1973)
PragueWikipedia: Hans Kelsen - 1967
Peter Thiel, German and American entrepreneur, venture capitalist, and political activist
FrankfurtWikipedia: Peter Thiel - 1671
Frederick IV of Denmark (died 1730)
Copenhagen CastleWikipedia: Frederick IV of Denmark - 1977
Matt Bomer, American actor and producer
Webster GrovesWikipedia: Matt Bomer - 1953
David Morse, American actor, director, producer, and screenwriter
BeverlyWikipedia: David Morse - 1948
Peter Turkson, Ghanaian cardinal
Nsuta WassaWikipedia: Peter Turkson - 1954
Vojislav Šešelj, Serbian lawyer and politician, Deputy Prime Minister of Serbia
SarajevoWikipedia: Vojislav Šešelj - 1905
Fred Trump, American real estate entrepreneur (died 1999)
The BronxWikipedia: Fred Trump - 1738
Arthur Phillip, English admiral and politician, 1st Governor of New South Wales (died 1814)
- 1925
Elmore Leonard, American novelist, short story writer, and screenwriter (died 2013)
New OrleansWikipedia: Elmore Leonard - 1967
Artie Lange, American actor and comedian
LivingstonWikipedia: Artie Lange - 1918
Jerome Robbins, American director, producer, and choreographer (died 1998)
New York CityWikipedia: Jerome Robbins - 1939
Maria Bueno, Brazilian tennis player (died 2018)
São PauloWikipedia: Maria Bueno - 1956
Nicanor Duarte, Paraguayan lawyer and politician, President of Paraguay
Coronel OviedoWikipedia: Nicanor Duarte - 1968
Jane Krakowski, American actress and singer
Parsippany-Troy HillsWikipedia: Jane Krakowski - 1990
Sebastian Rode, German footballer
Seeheim-JugenheimWikipedia: Sebastian Rode - 1872
Emily Davison, English educator and activist (died 1913)
BlackheathWikipedia: Emily Davison - 1919
Art Blakey, American drummer and bandleader (died 1990)
PittsburghWikipedia: Art Blakey - 1946
Sawao Katō, Japanese gymnast
NiigataWikipedia: Sawao Katō - 1950
Patty Murray, American educator and politician
BothellWikipedia: Patty Murray - 1616
Andreas Gryphius, German poet and playwright (died 1664)
- 1951
Jean-Jacques Goldman, French singer-songwriter and guitarist
- 1993
Brandon Flynn, American actor
- 1927
Princess Joséphine Charlotte of Belgium (died 2005)
Royal Palace of BrusselsWikipedia: Princess Joséphine-Charlotte of Belgium - 1969
Stephen Moyer, English actor
BrentwoodWikipedia: Stephen Moyer - 1985
Nesta Carter, Jamaican sprinter
Banana GroundWikipedia: Nesta Carter - 1991
Toby Fox, American video game developer and composer
ManchesterWikipedia: Toby Fox - 1902
Jayaprakash Narayan, Indian activist and politician (died 1979)
- 1957
Dawn French, Welsh-English actress, comedian and screenwriter
HolyheadWikipedia: Dawn French - 2001
Daniel Maldini, Italian footballer
- 1982
Mauricio Victorino, Uruguayan footballer
MontevideoWikipedia: Mauricio Victorino - 1965
Sean Patrick Flanery, American actor and producer
Lake CharlesWikipedia: Sean Patrick Flanery - 1965
Lennie James, English actor
NottinghamWikipedia: Lennie James - 1844
Henry J. Heinz, American businessman, founded the H. J. Heinz Company (died 1919)
BirminghamWikipedia: Henry J. Heinz - 1969
Prince Constantijn of the Netherlands
University Medical Center UtrechtWikipedia: Prince Constantijn of the Netherlands - 1970
Shin Tae-yong, South Korean footballer and coach
Yeongdeok CountyWikipedia: Shin Tae-yong - 1996
Rhea Ripley, Australian wrestler
AdelaideWikipedia: Rhea Ripley - 1924
Mal Whitfield, American athlete (died 2015)
Bay CityWikipedia: Mal Whitfield - 1971
Justin Lin, American film director
TaipeiWikipedia: Justin Lin - 1988
Omar Gonzalez, American soccer player
DallasWikipedia: Omar Gonzalez - 1675
Samuel Clarke, English minister and philosopher (died 1729)
NorwichWikipedia: Samuel Clarke - 1782
Steen Steensen Blicher, Danish author and poet (died 1848)
- 1928
Alfonso de Portago, Spanish race car driver and bobsledder (died 1957)
- 1936
C. Gordon Fullerton, American colonel, engineer, and astronaut (died 2013)
RochesterWikipedia: C. Gordon Fullerton - 1943
John Nettles, English actor and writer
St AustellWikipedia: John Nettles
What is celebrated on 11 October
- Christian feast days: Agilbert
- Christian feast days: Alexander Sauli
- Christian feast days: Andronicus, Probus, and Tarachus (Roman Catholic Church)
- Christian feast days: Æthelburh of Barking
- Christian feast days: Bruno the Great
- Christian feast days: Cainnech of Aghaboe
- Christian feast days: Gratus of Oloron
- Christian feast days: Gummarus
- Christian feast days: James the Deacon (Church of England, Roman Catholic Church, Eastern Orthodox Church)
- Christian feast days: Lommán of Trim
- Christian feast days: Maria Soledad Torres y Acosta
- Christian feast days: Nicasius, Quirinus, Scubiculus, and Pientia
- Christian feast days: Philip the Evangelist
- Christian feast days: Pope John XXIII (Roman Catholic Church)
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.