A birthday on the globe
7 December on the globe: what happened in the world on this day, and who was born
For 7 December, the English Wikipedia lists 49 events and 196 births. 31 of the events stand at their places as rays of light; seven 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 7 December through the years
The Earth on 7 December
The picture on the globe was assembled by NASA from satellite photographs taken in December 2004: the snow, the ice and the green are those of the month.
On 7 December the Sun passes straight overhead at noon along the parallel of 22.6° south. In London, the day lasts about 8 hours.
Beyond 67° south the Sun no longer sets; beyond 67° 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 · Royal Opera House
1732
The Royal Opera House opens at Covent Garden, London, England.
On the map: Royal Opera House.
Also on the day’s list of Wikipedia in Spanish and Chinese.
Britain & Ireland · Southern Ireland
1922
The Parliament of Northern Ireland votes to remain a part of the United Kingdom and not unify with Southern Ireland.
On the map: Southern Ireland.
Also on the day’s list of Wikipedia in Spanish.
North America · New York Philharmonic
1842
First concert of the New York Philharmonic, founded by Ureli Corelli Hill.
On the map: New York Philharmonic.
Also on the day’s list of Wikipedia in Spanish.
North America · Boston
1930
W1XAV in Boston, Massachusetts telecasts video from the CBS radio orchestra program, The Fox Trappers. The telecast also includes the first television advertisement in the United States, for I.J. Fox Furriers, which also sponsored the radio show.
On the map: Boston.
Also on the day’s list of Wikipedia in Spanish.
7 December
Born on 7 December#
The English Wikipedia lists 196 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 7 December
1598
Gian Lorenzo Bernini, Italian sculptor and painter (died 1680)
Place of birth: Naples.
Born on 7 December
1863
Pietro Mascagni, Italian composer and conductor (died 1945)
Place of birth: Livorno.
Born on 7 December
1984
Robert Kubica, Polish race car driver
Place of birth: Kraków.
Born on 7 December
1823
Leopold Kronecker, Polish-German mathematician and academic (died 1891)
Place of birth: Legnica.
Born in Britain and Ireland
521
Columba, Irish missionary, monk, and saint (died 597)
Place of birth: County Donegal.
Born in Britain and Ireland
1977
Dominic Howard, English drummer and producer
Place of birth: Stockport.
Born in Britain and Ireland
1973
Damien Rice, Irish singer-songwriter, musician and record producer
Place of birth: Dublin.
7 December
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: 7 December 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 7 December
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 11 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.
- 43 BC
Marcus Tullius Cicero is assassinated in Formia on orders of Marcus Antonius.
Europe · FormiaWikipedia: Cicero - 574
Byzantine Emperor Justin II, suffering recurring seizures of insanity, adopts his general Tiberius and proclaims him as Caesar.
no place on the mapWikipedia: Justin II - 927
The Sajid emir of Adharbayjan, Yusuf ibn Abi'l-Saj is defeated and captured by the Qarmatians near Kufa.
Asia · KufaWikipedia: Sajid dynasty - 1703
The Great Storm of 1703, the greatest windstorm ever recorded in the southern part of Great Britain, makes landfall. Winds gust up to 120 mph, and 9,000 people die.
Britain & Ireland · Great storm of 1703Wikipedia: Great storm of 1703 - 1724
Tumult of Thorn: Religious unrest is followed by the execution of nine Protestant citizens and the mayor of Thorn (Toruń) by Polish authorities.
Europe · ToruńWikipedia: Tumult of Thorn - 1732
The Royal Opera House opens at Covent Garden, London, England.
Britain & Ireland · Royal Opera HouseWikipedia: Royal Opera House - 1776
Gilbert du Motier, Marquis de Lafayette, arranges to enter the American military as a major general.
no place on the mapWikipedia: Marquis de Lafayette - 1787
Delaware becomes the first state to ratify the United States Constitution.
North America · DelawareWikipedia: Delaware - 1837
The Battle of Montgomery's Tavern, the only battle of the Upper Canada Rebellion, takes place in Toronto, where the rebels are quickly defeated.
North America · Battle of Montgomery's TavernWikipedia: Battle of Montgomery's Tavern - 1842
First concert of the New York Philharmonic, founded by Ureli Corelli Hill.
North America · New York PhilharmonicWikipedia: New York Philharmonic - 1862
American Civil War: The Battle of Prairie Grove ended a Confederate attempt to regain control of northwestern Arkansas.
North America · Battle of Prairie GroveWikipedia: American Civil War - 1904
Comparative fuel trials begin between warships HMS Spiteful and HMS Peterel: Spiteful was the first warship powered solely by fuel oil, and the trials led to the obsolescence of coal in ships of the Royal Navy.
no place on the mapWikipedia: Warship - 1917
World War I: The United States declares war on Austria-Hungary.
Europe · Austria-HungaryWikipedia: World War I - 1922
The Parliament of Northern Ireland votes to remain a part of the United Kingdom and not unify with Southern Ireland.
Britain & Ireland · Southern IrelandWikipedia: Parliament of Northern Ireland - 1930
W1XAV in Boston, Massachusetts telecasts video from the CBS radio orchestra program, The Fox Trappers. The telecast also includes the first television advertisement in the United States, for I.J. Fox Furriers, which also sponsored the radio show.
North America · BostonWikipedia: W1WX - 1932
German-born Swiss physicist Albert Einstein is granted an American visa.
no place on the mapWikipedia: Physicist - 1936
Australian cricketer Jack Fingleton becomes the first player to score centuries in four consecutive Test innings.
no place on the mapWikipedia: Cricket - 1941
World War II: Attack on Pearl Harbor: The Imperial Japanese Navy carries out a surprise attack on the United States Pacific Fleet and its defending Army and Marine air forces at Pearl Harbor, Hawaii. (For Japan's near-simultaneous attacks on Eastern Hemisphere targets, see December 8.)
North America · Attack on Pearl HarborWikipedia: Attack on Pearl Harbor - 1942
World War II: British commandos conduct Operation Frankton, a raid on shipping in Bordeaux harbour.
Europe · BordeauxWikipedia: Operation Frankton - 1944
An earthquake along the coast of Wakayama Prefecture in Japan causes a tsunami which kills 1,223 people.
Asia · 1944 Tōnankai earthquakeWikipedia: 1944 Tōnankai earthquake - 1946
A fire at the Winecoff Hotel in Atlanta, Georgia kills 119 people, the deadliest hotel fire in U.S. history.
North America · Winecoff Hotel fireWikipedia: Winecoff Hotel fire - 1949
Chinese Civil War: The Government of the Republic of China moves from Nanjing to Taipei, Taiwan.
Asia · NanjingWikipedia: Chinese Civil War - 1962
Prince Rainier III of Monaco revises the principality's constitution, devolving some of his power to advisory and legislative councils.
Europe · MonacoWikipedia: Rainier III of Monaco - 1963
Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.
North America · PhiladelphiaWikipedia: Instant replay - 1965
Pope Paul VI and Patriarch Athenagoras I simultaneously revoke mutual excommunications that had been in place since 1054.
no place on the mapWikipedia: Pope Paul VI - 1971
Pakistan President Yahya Khan announces the formation of a coalition government with Nurul Amin as Prime Minister and Zulfikar Ali Bhutto as Deputy Prime Minister.
Asia · PakistanWikipedia: Pakistan - 1971
The Battle of Sylhet is fought between the Pakistani military and the Indian Army.
Asia · SylhetWikipedia: Battle of Sylhet - 1972
Apollo 17, the last Apollo Moon mission, is launched. The crew takes the photograph known as The Blue Marble as they leave the Earth.
no place on the mapWikipedia: Apollo 17 - 1972
Construction workers found the remains of Martin Bormann near Lehrter Station in Berlin, ending a decades-long search after his conviction in absentia at the Nuremberg trials.
Europe · Nuremberg trialsWikipedia: Berlin Hauptbahnhof - 1975
The Indonesian military began a lengthy occupation of East Timor under the pretext of anti-colonialism.
Asia · Timor-LesteWikipedia: Indonesian occupation of East Timor - 1982
In Texas, Charles Brooks Jr., becomes the first person to be executed by lethal injection in the United States.
North America · TexasWikipedia: Texas - 1982
The Senior Road Tower collapses in less than 17 seconds. Five workers on the tower are killed and three workers on a building nearby are injured.
North America · Senior Road TowerWikipedia: Senior Road Tower - 1983
An Iberia Airlines Boeing 727 collides with an Aviaco DC-9 in dense fog while the two airliners are taxiing down the runway at Madrid–Barajas Airport, killing 93 people.
Europe · 1983 Madrid Airport runway collisionWikipedia: 1983 Madrid Airport runway collision - 1987
Pacific Southwest Airlines Flight 1771, a British Aerospace 146-200A, crashes near Paso Robles, California, killing all 43 on board, after a disgruntled passenger shoots his ex-boss traveling on the flight, then shoots both pilots and steers the plane into the ground.
North America · Pacific Southwest Airlines Flight 1771Wikipedia: Pacific Southwest Airlines Flight 1771 - 1988
The 6.8 Ms Armenian earthquake shakes the northern part of the country with a maximum MSK intensity of X (Devastating), killing 25,000–50,000 and injuring 31,000–130,000.
Asia · 1988 Armenian earthquakeWikipedia: 1988 Armenian earthquake - 1993
Long Island Rail Road shooting: Passenger Colin Ferguson murders six people and injures 19 others on the LIRR in Nassau County, New York.
North America · Long IslandWikipedia: Long Island Rail Road shooting - 1995
An Air Saint Martin (now Air Caraïbes) Beechcraft 1900 crashes near the Haitian commune of Belle Anse, killing 20.
Latin America · 1995 Air Saint-Martin Beechcraft 1900 crashWikipedia: 1995 Air Saint-Martin Beechcraft 1900 crash - 1995
Khabarovsk United Air Group Flight 3949 crashes into the Bo-Dzhausa Mountain, killing 98.
Asia · Khabarovsk United Air Group Flight 3949Wikipedia: Khabarovsk United Air Group Flight 3949 - 1995
The Galileo spacecraft arrives at Jupiter, a little more than six years after it was launched by Space Shuttle Atlantis during Mission STS-34.
no place on the mapWikipedia: Galileo - 2003
The Conservative Party of Canada is officially registered, following the merger of the Canadian Alliance and the Progressive Conservative Party of Canada.
no place on the mapWikipedia: Conservative Party of Canada - 2005
Rigoberto Alpizar, a passenger on American Airlines Flight 924 who allegedly claimed to have a bomb, is shot and killed by a team of U.S. federal air marshals at Miami International Airport.
North America · Miami International AirportWikipedia: Killing of Rigoberto Alpizar - 2011
The United States transferred its last base in the Al Anbar Governorate to the Iraqi government, ending the Anbar campaign.
Asia · Al Anbar GovernorateWikipedia: Anbar campaign - 2014
The annual furry convention Midwest FurFest is targeted in an unsolved chlorine gas attack.
North America · 2014 Midwest FurFest gas attackWikipedia: 2014 Midwest FurFest gas attack - 2015
The JAXA probe Akatsuki successfully enters orbit around Venus five years after the first attempt.
no place on the mapWikipedia: JAXA - 2016
Pakistan International Airlines Flight 661, a domestic passenger flight from Chitral to Islamabad, operated by an ATR-42-500 crashes near Havelian, killing all 47 on board.
Asia · Pakistan International Airlines Flight 661Wikipedia: Pakistan International Airlines Flight 661 - 2017
Aztec High School shooting: William Atchison kills two students at his former high school.
North America · 2017 Aztec High School shootingWikipedia: 2017 Aztec High School shooting - 2024
Battle of Damascus (2024): Syrian opposition forces enter the Rif Dimashq Governorate, reaching within 20 km of the capital Damascus.
Asia · Fall of DamascusWikipedia: Fall of Damascus - 2025
An attempted coup takes place in Benin, but is thwarted, and order restored.
Africa · 2025 Beninese coup attemptWikipedia: 2025 Beninese coup attempt - 2025
British racing driver Lando Norris wins the Formula One World Drivers' Championship in 2025 with McLaren.
no place on the mapWikipedia: 2025 Formula One World Championship
Who was born on 7 December
In order of how many Wikipedia editions have an article about each. The first 60 of 196 are shown.
- 1598
Gian Lorenzo Bernini, Italian sculptor and painter (died 1680)
- 1980
John Terry, English footballer
BarkingWikipedia: John Terry - 1863
Pietro Mascagni, Italian composer and conductor (died 1945)
LivornoWikipedia: Pietro Mascagni - 1984
Robert Kubica, Polish race car driver
KrakówWikipedia: Robert Kubica - 1823
Leopold Kronecker, Polish-German mathematician and academic (died 1891)
LegnicaWikipedia: Leopold Kronecker - 1873
Willa Cather, American novelist, short story writer, and poet (died 1947)
- 1915
Eli Wallach, American actor (died 2014)
Red HookWikipedia: Eli Wallach - 1924
Mário Soares, Portuguese historian, lawyer, and politician, 17th President of Portugal (died 2017)
LisbonWikipedia: Mário Soares - 1905
Gerard Kuiper, Dutch-American astronomer and academic (died 1973)
TuitjenhornWikipedia: Gerard Kuiper - 1810
Theodor Schwann, German physiologist and biologist (died 1882)
- 1956
Iveta Radičová, Slovak politician
BratislavaWikipedia: Iveta Radičová - 521
Columba, Irish missionary, monk, and saint (died 597)
County DonegalWikipedia: Columba - 903
Abd al-Rahman al-Sufi, Persian astronomer and author (died 986)
- 1878
Akiko Yosano, Japanese author, poet, pioneering feminist, pacifist, and social reformer (died 1942)
- 1893
Fay Bainter, American actress (died 1968)
Los AngelesWikipedia: Fay Bainter - 1994
Yuzuru Hanyu, Japanese figure skater
SendaiWikipedia: Yuzuru Hanyu - 1972
Hermann Maier, Austrian skier
Altenmarkt im PongauWikipedia: Hermann Maier - 1801
Johann Nestroy, Austrian actor and playwright (died 1862)
- 1952
Susan Collins, American politician
- 1991
Chris Wood, New Zealand footballer
AucklandWikipedia: Chris Wood - 1545
Henry Stuart, English-Scottish husband of Mary, Queen of Scots (died 1567)
Temple NewsamWikipedia: Henry Stuart, Lord Darnley - 1985
Jon Moxley, American wrestler
CincinnatiWikipedia: Jon Moxley - 1900
Kateryna Vasylivna Bilokur, Ukrainian folk artist (died 1961)
BohdanivkaWikipedia: Kateryna Bilokur - 1987
Aaron Carter, American singer-songwriter, rapper, dancer, and actor (died 2022)
- 1860
Joseph Cook, English-born Australian politician, 6th Prime Minister of Australia (died 1947)
SilverdaleWikipedia: Joseph Cook - 1977
Dominic Howard, English drummer and producer
StockportWikipedia: Dominic Howard - 967
Abū-Sa'īd Abul-Khayr, Persian Sufi poet (died 1049)
- 1910
Louis Prima, American singer-songwriter, trumpet player, and actor (died 1978)
New OrleansWikipedia: Louis Prima - 1990
David Goffin, Belgian tennis player
RocourtWikipedia: David Goffin - 1764
Claude-Victor Perrin, French general and politician (died 1841)
LamarcheWikipedia: Claude-Victor Perrin - 1915
Leigh Brackett, American author and screenwriter (died 1978)
Los AngelesWikipedia: Leigh Brackett - 1956
Chuy Bravo, Mexican-American comedian and actor (died 2019)
Tangancícuaro MunicipalityWikipedia: Chuy Bravo - 1990
Urszula Radwańska, Polish tennis player
- 1935
Armando Manzanero, Mexican musician, singer and composer (died 2020)
- 1980
Dan Bilzerian, American poker player and internet celebrity
- 1966
C. Thomas Howell, American actor, director,
Van NuysWikipedia: C. Thomas Howell - 1973
Damien Rice, Irish singer-songwriter, musician and record producer
DublinWikipedia: Damien Rice - 1962
Imad Mughniyah, Lebanese activist (died 2008)
Tayr DebbaWikipedia: Imad Mughniyeh - 1954
Mary Fallin, American businesswoman and politician, 27th Governor of Oklahoma
WarrensburgWikipedia: Mary Fallin - 1988
Nathan Adrian, American swimmer
BremertonWikipedia: Nathan Adrian - 1637
Bernardo Pasquini, Italian organist and composer (died 1710)
Massa e CozzileWikipedia: Bernardo Pasquini - 2002
Torri Huske, American swimmer
Arlington CountyWikipedia: Torri Huske - 1893
Hermann Balck, German general (died 1982)
GdańskWikipedia: Hermann Balck - 1904
Clarence Nash, American voice actor and singer (died 1985)
WatongaWikipedia: Clarence Nash - 1920
Walter Nowotny, Austrian-German soldier and pilot (died 1944)
- 1937
Thad Cochran, American lawyer and politician (died 2019)
PontotocWikipedia: Thad Cochran - 1595
Injo of Joseon, Korean king (died 1649)
- 1862
Paul Adam, French author (died 1920)
3rd arrondissement of ParisWikipedia: Paul Adam - 1971
Vladimir Akopian, Azerbaijani-Armenian chess player
- 1302
Azzone Visconti, Italian nobleman (died 1339)
FerraraWikipedia: Azzone Visconti - 1909
Nikola Vaptsarov, Bulgarian poet and author (died 1942)
- 1936
Martha Layne Collins, American politician, 56th Governor of Kentucky (died 2025)
- 1975
Mia Love, American politician (died 2025)
BrooklynWikipedia: Mia Love - 1892
Stuart Davis, American painter and academic (died 1964)
PhiladelphiaWikipedia: Stuart Davis - 1910
Duncan McNaughton, Canadian high jumper and geologist (died 1998)
CornwallWikipedia: Duncan McNaughton - 1956
Anna Soubry, British politician
LincolnWikipedia: Anna Soubry - 1958
Rick Rude, American wrestler and sportscaster (died 1999)
St. PeterWikipedia: Rick Rude - 1993
Rahama Sadau, Nigerian actress
KadunaWikipedia: Rahama Sadau - 1861
Henri Mathias Berthelot, French general during World War I (died 1931)
- 1920
Fiorenzo Magni, Italian cyclist (died 2012)
What is celebrated on 7 December
- Armed Forces Flag Day (India)
- Christian feast day: Aemilianus (Greek Church)
- Christian feast day: Ambrose
- Christian feast day: Buíte of Monasterboice
- Christian feast day: Maria Giuseppa Rossello
- Christian feast day: Sabinus of Spoleto
- Christian feast day: December 7 (Eastern Orthodox liturgics)
- Eve of the Immaculate Conception-related observances: Day of the Little Candles, begins after sunset (Colombia)
- International Civil Aviation Day
- National Heroes Day (East Timor)
- National Pearl Harbor Remembrance Day (United States)
- Spitak Remembrance Day (Armenia)
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.