A birthday on the globe
24 March on the globe: what happened in the world on this day, and who was born
For 24 March, the English Wikipedia lists 54 events and 246 births. 28 of the events stand at their places as rays of light; 10 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 24 March through the years
The Earth on 24 March
The picture on the globe was assembled by NASA from satellite photographs taken in March 2004: the snow, the ice and the green are those of the month.
On 24 March the Sun passes straight overhead at noon along the parallel of 1.6° north. In London, the day lasts about 12 hours 25 minutes.
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 · Monte Carlo
1921
The 1921 Women's Olympiad begins in Monte Carlo, becoming the first international women's sports event.
On the map: Monte Carlo.
Europe · University of Regensburg
1998
Dr. Rüdiger Marmulla performs the first computer-assisted Bone Segment Navigation at the University of Regensburg, Germany.
On the map: University of Regensburg.
Asia · Edo
1603
Tokugawa Ieyasu is granted the title of shōgun from Emperor Go-Yōzei, and establishes the Tokugawa shogunate in Edo, Japan.
On the map: Edo.
Latin America · Caracoles
1870
A Chilean prospecting party led by José Díaz Gana discovers the silver ores of Caracoles in the Bolivian portion of Atacama Desert, leading to the last of the Chilean silver rushes and a diplomatic dispute over its taxation between Chile and Bolivia.
On the map: Caracoles.
North America · New York City Subway
1900
Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
On the map: New York City Subway.
Also on the day’s list of Wikipedia in Chinese.
North America · United States Congress
1934
The Tydings–McDuffie Act is passed by the United States Congress, allowing the Philippines to become a self-governing commonwealth.
On the map: United States Congress.
North America · Hollywood
2002
At the 74th Academy Awards, Halle Berry became the first African American to win Best Actress, winning for her role as Leticia Musgrove in Monster's Ball.
On the map: Hollywood.
24 March
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 · Lima
1917
In Lima (Peru), the Pontifical Catholic University of Peru is founded.
On the map: Lima.
Translated from the list on Wikipedia in Spanish.
From Wikipedia in Spanish · Heemskerk
1942
To prevent it from falling into the hands of the Nazi invaders, the painting The Night Watch (by the Dutch painter Rembrandt) is moved from a bunker in the dunes of Heemskerk and Zandvoort to shelters in Maastricht and Steenwijk.
On the map: Heemskerk.
Translated from the list on Wikipedia in Spanish.
24 March
Born on 24 March#
The English Wikipedia lists 246 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 24 March
1954
Rafael Orozco Maestre, Colombian singer (died 1992)
Place of birth: Becerril.
Born on 24 March
1926
Dario Fo, Italian playwright, actor, director, and composer, Nobel Prize laureate (died 2016)
Place of birth: Sangiano.
Born on 24 March
1874
Harry Houdini, Hungarian-American magician and actor (died 1926)
Place of birth: Budapest.
Born on 24 March
1930
Steve McQueen, American actor and producer (died 1980)
Place of birth: Beech Grove.
Born on 24 March
1884
Peter Debye, Dutch-American physicist and chemist, Nobel Prize laureate (died 1966)
Place of birth: Maastricht.
Born in Britain and Ireland
1834
William Morris, English textile designer, poet, and author (died 1896)
Place of birth: Walthamstow.
Born in Britain and Ireland
1917
John Kendrew, English biochemist and crystallographer, Nobel Prize laureate (died 1997)
Place of birth: Oxford.
Born in Britain and Ireland
1938
David Irving, English historian and author
Place of birth: Brentwood.
24 March
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: 24 March 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 24 March
The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 16 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.
- 1199
King Richard I of England is wounded by a crossbow bolt while fighting in France, leading to his death on April 6.
Europe · FranceWikipedia: Richard I of England - 1387
English victory over a Franco-Castilian-Flemish fleet in the Battle of Margate off the coast of Margate.
Europe · Battle of MargateWikipedia: Battle of Margate - 1401
Turco-Mongol emperor Timur sacks Damascus.
Asia · DamascusWikipedia: Turco-Mongol tradition - 1603
James VI of Scotland is proclaimed King James I of England and Ireland, upon the death of Elizabeth I.
no place on the mapWikipedia: James VI and I - 1603
Tokugawa Ieyasu is granted the title of shōgun from Emperor Go-Yōzei, and establishes the Tokugawa shogunate in Edo, Japan.
Asia · EdoWikipedia: Tokugawa Ieyasu - 1663
The Province of Carolina is granted by charter to eight Lords Proprietor in reward for their assistance in restoring Charles II of England to the throne.
North America · Province of CarolinaWikipedia: Province of Carolina - 1720
Count Frederick of Hesse-Kassel is elected King of Sweden by the Riksdag of the Estates, after his consort Ulrika Eleonora abdicated the throne on 29 February.
no place on the mapWikipedia: Frederick I of Sweden - 1721
Johann Sebastian Bach dedicates six concertos to Margrave Christian Ludwig of Brandenburg-Schwedt, now commonly called the Brandenburg Concertos, BWV 1046–1051.
no place on the mapWikipedia: Johann Sebastian Bach - 1765
Great Britain passes the Quartering Act, which requires the Thirteen Colonies to house British troops.
no place on the mapWikipedia: British Army during the American Revolutionary War - 1794
In Kraków, Tadeusz Kościuszko announces a general uprising against Imperial Russia and the Kingdom of Prussia, and assumes the powers of the Commander in Chief of all of the Polish forces.
Europe · KrakówWikipedia: Kościuszko Uprising - 1829
The Parliament of the United Kingdom passes the Roman Catholic Relief Act 1829, allowing Catholics to serve in Parliament.
no place on the mapWikipedia: Parliament of the United Kingdom - 1832
In Hiram, Ohio, a group of men beat and tar and feather Mormon leader Joseph Smith.
North America · Hiram, OhioWikipedia: Hiram, Ohio - 1854
President José Gregorio Monagas abolishes slavery in Venezuela.
no place on the mapWikipedia: President of Venezuela - 1860
Sakuradamon Incident: Japanese chief minister (Tairō) Ii Naosuke is assassinated by rōnin samurai outside the Sakurada Gate of Edo Castle.
Asia · Sakuradamon IncidentWikipedia: Sakuradamon Incident - 1869
The last of Tītokowaru's forces surrender to the New Zealand government, ending his uprising.
no place on the mapWikipedia: Tītokowaru's War - 1870
A Chilean prospecting party led by José Díaz Gana discovers the silver ores of Caracoles in the Bolivian portion of Atacama Desert, leading to the last of the Chilean silver rushes and a diplomatic dispute over its taxation between Chile and Bolivia.
Latin America · CaracolesWikipedia: Chilean silver rush - 1878
The British frigate HMS Eurydice sinks, killing more than 300.
no place on the mapWikipedia: HMS Eurydice - 1882
Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis.
no place on the mapWikipedia: Robert Koch - 1898
The Winton Motor Carriage Company, one of the first American car companies, sold its first unit.
no place on the mapWikipedia: Winton Motor Carriage Company - 1900
Carnegie Steel Company is formed in New Jersey; its capitalization of $160 million is the largest to date.
North America · New JerseyWikipedia: Carnegie Steel Company - 1900
Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
North America · New York City SubwayWikipedia: Mayor of New York City - 1921
The 1921 Women's Olympiad begins in Monte Carlo, becoming the first international women's sports event.
Europe · Monte CarloWikipedia: 1921 Women's Olympiad - 1922
The McMahon killings take place in Belfast. Six Catholic civilians are shot dead, two others wounded and a female family member assaulted. Police were suspected as being responsible, but no one was prosecuted.
Britain & Ireland · McMahon killingsWikipedia: McMahon killings - 1927
Nanking Incident: Foreign warships bombard Nanjing, China, in defence of the foreign citizens within the city.
Asia · Nan-chingWikipedia: Nanking incident of 1927 - 1934
The Tydings–McDuffie Act is passed by the United States Congress, allowing the Philippines to become a self-governing commonwealth.
North America · United States CongressWikipedia: United States Congress - 1939
The 1939 Liechtenstein putsch takes place; approximately 40 members of the VBDL starting from Nendeln march towards Vaduz with the intention of overthrowing the government and provoking Liechtenstein's annexation into Germany.
Europe · SchaanWikipedia: 1939 Liechtenstein putsch - 1944
German troops massacre 335 Italian civilians in Rome.
Europe · Ardeatine massacreWikipedia: Ardeatine massacre - 1944
World War II: In an event later dramatized in the movie The Great Escape, 76 Allied prisoners of war begin breaking out of the German camp Stalag Luft III.
Europe · Stalag Luft IIIWikipedia: World War II - 1946
A British Cabinet Mission arrives in India to discuss and plan for the transfer of power from the British Raj to Indian leadership.
Asia · British RajWikipedia: 1946 Cabinet Mission to India - 1949
Hanns Albin Rauter, a chief SS and Police Leader in the Netherlands, is convicted and executed for crimes against humanity.
Europe · NetherlandsWikipedia: Hanns Albin Rauter - 1964
Royal assent was given to Prince Edward Island's Provincial Flag Act, which outlined the design of its provincial flag.
North America · Prince Edward IslandWikipedia: Royal assent - 1972
Direct rule is imposed on Northern Ireland by the Government of the United Kingdom under Edward Heath.
Britain & Ireland · Northern IrelandWikipedia: Direct rule - 1976
In Argentina, the armed forces overthrow the constitutional government of President Isabel Perón and start a seven-year dictatorial period self-styled the National Reorganization Process.
Latin America · 1976 Argentine coup d'étatWikipedia: 1976 Argentine coup d'état - 1977
Morarji Desai becomes the prime minister of India, the first prime minister not to belong to Indian National Congress.
no place on the mapWikipedia: Morarji Desai - 1980
El Salvadorian Archbishop Óscar Romero is assassinated while celebrating Mass in San Salvador.
Latin America · San SalvadorWikipedia: El Salvador - 1982
Bangladeshi President Abdus Sattar is deposed in a bloodless coup led by Army Chief Lieutenant general Hussain Muhammad Ershad, who suspends the Constitution and imposes martial law.
no place on the mapWikipedia: 1982 Bangladeshi coup d'état - 1986
The Loscoe gas explosion leads to new UK laws on landfill gas migration and gas protection on landfill sites.
Britain & Ireland · LoscoeWikipedia: Loscoe - 1989
In Prince William Sound in Alaska, the Exxon Valdez spills 240,000 barrels (38,000 m3) of crude oil after running aground.
North America · Exxon Valdez oil spillWikipedia: Exxon Valdez oil spill - 1990
Indian intervention in the Sri Lankan Civil War ends with the last ship of Indian Peace Keeping Force leaving Sri Lanka.
Asia · Sri LankaWikipedia: Indian intervention in the Sri Lankan civil war - 1992
Space Shuttle Atlantis launches on STS-45.
no place on the mapWikipedia: Space Shuttle Atlantis - 1998
A tornado sweeps through Dantan in India, killing 250 people and injuring 3,000 others.
Asia · DantanWikipedia: Tornado - 1998
Dr. Rüdiger Marmulla performs the first computer-assisted Bone Segment Navigation at the University of Regensburg, Germany.
Europe · University of RegensburgWikipedia: Rüdiger Marmulla - 1998
Mitchell Johnson and Andrew Golden, aged 11 and 13 respectively, open fire upon teachers and students at Westside Middle School in Jonesboro, Arkansas; five people are killed and ten are wounded.
North America · 1998 Westside Middle School shootingWikipedia: 1998 Westside Middle School shooting - 1999
A lorry carrying margarine and flour catches fire inside the Mont Blanc Tunnel, creating an inferno that kills 39 people.
Europe · Mont Blanc Tunnel fireWikipedia: Mont Blanc Tunnel fire - 1999
Kosovo War: NATO begins attacks on Yugoslavia without United Nations Security Council (UNSC) approval, marking the first time NATO has attacked a sovereign country.
Europe · Serbia and MontenegroWikipedia: Kosovo War - 2002
At the 74th Academy Awards, Halle Berry became the first African American to win Best Actress, winning for her role as Leticia Musgrove in Monster's Ball.
North America · HollywoodWikipedia: 74th Academy Awards - 2006
Hannah Montana, starring Miley Cyrus as an actress whose alter ego is the titular character, premiered.
no place on the mapWikipedia: Hannah Montana - 2008
Bhutan officially becomes a democracy, with its first ever general election.
Asia · BhutanWikipedia: 2008 Bhutanese National Assembly election - 2015
Germanwings Flight 9525 crashes in the French Alps in an apparent pilot mass murder-suicide, killing all 150 people on board.
Europe · Germanwings Flight 9525Wikipedia: Germanwings Flight 9525 - 2018
Students across the United States stage the March for Our Lives demanding gun control in response to the Stoneman Douglas High School shooting.
North America · Washington, D.C.Wikipedia: March for Our Lives - 2018
Syrian civil war: The Turkish Armed Forces (TAF) and Syrian National Army (SNA) take full control of Afrin District, marking the end of the Afrin offensive.
Asia · Afrin DistrictWikipedia: Operation Olive Branch - 2023
An EF4 tornado strikes the towns of Rolling Fork and Silver City, Mississippi, causing mass destruction.
North America · Rolling Fork, MississippiWikipedia: 2023 Rolling Fork tornado - 2024
The 2024 Senegalese presidential election is held following anti-government protests.
no place on the mapWikipedia: 2024 Senegalese presidential election - 2026
OpenAI announces that their flagship Sora app and API are shutting down.
no place on the mapWikipedia: OpenAI
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.
- 1917
In Lima (Peru), the Pontifical Catholic University of Peru is founded.
- 1942
To prevent it from falling into the hands of the Nazi invaders, the painting The Night Watch (by the Dutch painter Rembrandt) is moved from a bunker in the dunes of Heemskerk and Zandvoort to shelters in Maastricht and Steenwijk.
Who was born on 24 March
In order of how many Wikipedia editions have an article about each. The first 60 of 246 are shown.
- 1954
Rafael Orozco Maestre, Colombian singer (died 1992)
BecerrilWikipedia: Rafael Orozco Maestre - 1926
Dario Fo, Italian playwright, actor, director, and composer, Nobel Prize laureate (died 2016)
SangianoWikipedia: Dario Fo - 1874
Harry Houdini, Hungarian-American magician and actor (died 1926)
BudapestWikipedia: Harry Houdini - 1930
Steve McQueen, American actor and producer (died 1980)
Beech GroveWikipedia: Steve McQueen - 1884
Peter Debye, Dutch-American physicist and chemist, Nobel Prize laureate (died 1966)
MaastrichtWikipedia: Peter Debye - 1834
William Morris, English textile designer, poet, and author (died 1896)
WalthamstowWikipedia: William Morris - 1956
Steve Ballmer, American businessman
DetroitWikipedia: Steve Ballmer - 1973
Jim Parsons, American actor
St. Joseph Medical CenterWikipedia: Jim Parsons - 1903
Adolf Butenandt, German biochemist and academic, Nobel Prize laureate (died 1995)
- 1897
Wilhelm Reich, Austrian-American psychotherapist and academic (died 1957)
DobrianychiWikipedia: Wilhelm Reich - 1921
Vasily Smyslov, Russian chess player (died 2010)
- 1494
Georgius Agricola, German mineralogist and scholar (died 1555)
GlauchauWikipedia: Georgius Agricola - 1917
John Kendrew, English biochemist and crystallographer, Nobel Prize laureate (died 1997)
OxfordWikipedia: John Kendrew - 1961
Yanis Varoufakis, Greek economist and politician, Greek Minister of Finance
- 1969
Ilir Meta, Albanian politician, incumbent president of Albania
ÇorovodëWikipedia: Ilir Meta - 1874
Luigi Einaudi, Italian economist and politician, 2nd president of the Italian Republic (died 1961)
- 1893
Walter Baade, German astronomer and author (died 1960)
SchröttinghausenWikipedia: Walter Baade - 1835
Joseph Stefan, Slovene physicist, mathematician, and poet (died 1893)
SentpeterWikipedia: Josef Stefan - 1944
Vojislav Koštunica, Serbian academic and politician, 8th prime minister of Serbia
BelgradeWikipedia: Vojislav Koštunica - 1944
R. Lee Ermey, American sergeant and actor (died 2018)
EmporiaWikipedia: R. Lee Ermey - 1949
Ranil Wickremesinghe, Sri Lankan lawyer and politician, 13th prime minister of Sri Lanka
- 1911
Joseph Barbera, American animator, director, and producer, co-founded Hanna-Barbera (died 2006)
Little ItalyWikipedia: Joseph Barbera - 1938
David Irving, English historian and author
BrentwoodWikipedia: David Irving - 1987
Ramires, Brazilian footballer
Barra do PiraíWikipedia: Ramires - 1960
Nena, German singer-songwriter and actress
HagenWikipedia: Nena - 1607
Michiel de Ruyter, Dutch admiral (died 1667)
VlissingenWikipedia: Michiel de Ruyter - 1693
John Harrison, English carpenter and clock-maker, invented the Marine chronometer (died 1776)
FoulbyWikipedia: John Harrison - 1809
Joseph Liouville, French mathematician and academic (died 1882)
Saint-OmerWikipedia: Joseph Liouville - 1901
José Nasazzi, Uruguayan footballer (died 1968)
MontevideoWikipedia: José Nasazzi - 1930
David Dacko, Central African politician, 1st president of the Central African Republic (died 2003)
BouchiaWikipedia: David Dacko - 1973
Steve Corica, Australian footballer and coach
InnisfailWikipedia: Steve Corica - 1984
Benoît Assou-Ekotto, French-Cameroonian footballer
- 1984
Chris Bosh, American basketball player
DallasWikipedia: Chris Bosh - 1809
Mariano José de Larra, Spanish journalist and author (died 1837)
- 1887
Roscoe Arbuckle, American actor, director, and screenwriter (died 1933)
Smith CenterWikipedia: Roscoe Arbuckle - 1891
Sergey Ivanovich Vavilov, Russian physicist and academic (died 1951)
- 1951
Tommy Hilfiger, American fashion designer, founded the Tommy Hilfiger Corporation
- 1901
Ub Iwerks, American animator, director, and producer, co-created Mickey Mouse (died 1971)
Kansas CityWikipedia: Ub Iwerks - 1919
Lawrence Ferlinghetti, American poet and publisher, co-founded City Lights Bookstore (died 2021)
- 1978
Tomáš Ujfaluši, Czech footballer and manager
RýmařovWikipedia: Tomáš Ujfaluši - 1927
Martin Walser, German author and playwright (died 2023)
WasserburgWikipedia: Martin Walser - 1972
Christophe Dugarry, French footballer
- 1820
Edmond Becquerel, French physicist and academic (died 1891)
former 1st arrondissement of ParisWikipedia: Edmond Becquerel - 1855
Olive Schreiner, South African author and activist (died 1920)
Cape ColonyWikipedia: Olive Schreiner - 1947
Alan Sugar, English businessman
London Borough of HackneyWikipedia: Alan Sugar - 1976
Aliou Cissé, Senegalese footballer and coach
ZiguinchorWikipedia: Aliou Cissé - 1834
John Wesley Powell, American soldier, geologist, and explorer (died 1902)
Mount MorrisWikipedia: John Wesley Powell - 1975
Thomas Johansson, Swedish-Monégasque tennis player
LinköpingWikipedia: Thomas Johansson - 1949
Ruud Krol, Dutch footballer and coach
AmsterdamWikipedia: Ruud Krol - 1990
Keisha Castle-Hughes, Australian-New Zealand actress
DonnybrookWikipedia: Keisha Castle-Hughes - 1826
Matilda Joslyn Gage, American activist and author (died 1898)
- 1948
Jerzy Kukuczka, Polish mountaineer (died 1989)
KatowiceWikipedia: Jerzy Kukuczka - 1960
Annabella Sciorra, American actress
BrooklynWikipedia: Annabella Sciorra - 1902
Thomas E. Dewey, American lawyer and politician, 47th governor of New York (died 1971)
- 1945
Curtis Hanson, American director, producer, and screenwriter (died 2016)
- 1973
Jacek Bąk, Polish footballer
LublinWikipedia: Jacek Bąk - 1984
Park Bom, South Korean singer
SeoulWikipedia: Park Bom - 1855
Andrew W. Mellon, American banker, financier, and diplomat, 49th United States Secretary of the Treasury (died 1937)
PittsburghWikipedia: Andrew Mellon - 1808
Maria Malibran, Spanish-French soprano (died 1836)
- 1886
Edward Weston, American photographer (died 1958)
Highland ParkWikipedia: Edward Weston
What is celebrated on 24 March
- Christian feast day: Catherine of Vadstena
- Christian feast day: Hildelith of Barking
- Christian feast day: Mac Cairthinn of Clogher
- Christian feast day: Maria Karłowska
- Christian feast day: Óscar Romero (Catholic Church, Anglican Communion, Lutheranism)
- Christian feast day: Paul Couturier (Church of England)
- Christian feast day: Walter Hilton (Church of England)
- Christian feast day: March 24 (Eastern Orthodox liturgics)
- Day of Remembrance for Truth and Justice (Argentina)
- International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims
- National Tree Planting Day (Uganda)
- World Tuberculosis Day (International)
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.