A day on the globeROENES中文
The Earth on 28 February, with the rays of the day’s events
  1. A birthday on the globe

    28 February on the globe: what happened in the world on this day, and who was born

    For 28 February, the English Wikipedia lists 43 events and 148 births. 20 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:

  2. The Earth on 28 February

    The picture on the globe was assembled by NASA from satellite photographs taken in February 2004: the snow, the ice and the green are those of the month.

    On 28 February the Sun passes straight overhead at noon along the parallel of 8.1° south. In London, the day lasts about 10 hours 50 minutes.

    Beyond 82° south the Sun no longer sets; beyond 82° 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.

  3. 28 February

    Britain and Ireland#

    Four events from the day’s list are placed here, between 1638 and 2021.

    The globe stops at one of them; the whole list is further down. All four

  4. Britain & Ireland · Edinburgh

    1638

    The Scottish National Covenant is signed in Edinburgh.

    On the map: Edinburgh.

    Wikipedia: National Covenant

  5. 28 February

    Asia#

    Eight events from the day’s list are placed here, between 202 BC and 2026.

    The globe stops at one of them; the whole list is further down. All eight

  6. Asia · SSLV Launch Complex

    2024

    Prime Minister Modi of India inaugurates the 2nd Space Port of India - Kulasekarapattinam Spaceport.

    On the map: SSLV Launch Complex.

    Wikipedia: Prime minister

  7. 28 February

    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 Chinese and were translated for this page.

  8. From Wikipedia in Spanish · Cry of Asencio

    1811

    In the Banda Oriental (present-day Uruguay), the patriot Venancio Benavides issues the Grito de Asencio, beginning the Eastern Revolution.

    On the map: Cry of Asencio.

    Translated from the list on Wikipedia in Spanish.

    The article on Wikipedia in Spanish: Grito de Asencio

  9. From Wikipedia in Chinese · White House

    2018

    The United States Senate unanimously passes the Taiwan Travel Act and sends it to the White House. US President Donald Trump formally signs it on 16 March, making it US law, and the Taiwan Travel Act formally takes effect.

    On the map: White House.

    Translated from the list on Wikipedia in Chinese.

    The article on Wikipedia in Chinese: 白宫

  10. 28 February

    Born on 28 February#

    The English Wikipedia lists 148 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.

  11. Born on 28 February

    1533

    Michel de Montaigne, French philosopher and author (died 1592)

    Place of birth: Château de Montaigne.

    Wikipedia: Michel de Montaigne

  12. Born on 28 February

    1901

    Linus Pauling, American chemist and activist, Nobel Prize laureate (died 1994)

    Place of birth: Portland.

    Wikipedia: Linus Pauling

  13. Born on 28 February

    1953

    Paul Krugman, American economist and academic, Nobel Prize laureate

    Place of birth: Albany.

    Wikipedia: Paul Krugman

  14. Born on 28 February

    1929

    Frank Gehry, Canadian-American architect and designer (died 2025)

    Place of birth: Toronto.

    Wikipedia: Frank Gehry

  15. Born on 28 February

    1955

    Gilbert Gottfried, American comedian, actor, and singer (died 2022)

    Place of birth: Coney Island.

    Wikipedia: Gilbert Gottfried

  16. Born in Britain and Ireland

    1942

    Brian Jones, English guitarist, songwriter, and producer (died 1969)

    Place of birth: Cheltenham.

    Wikipedia: Brian Jones

  17. Born in Britain and Ireland

    1909

    Stephen Spender, English author and poet (died 1995)

    Place of birth: Kensington.

    Wikipedia: Stephen Spender

  18. Born in Britain and Ireland

    1944

    Storm Thorgerson, English graphic designer (died 2013)

    Place of birth: Potters Bar.

    Wikipedia: Storm Thorgerson

  19. 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 28 February

The list is the English Wikipedia’s, in its own wording, as it stood in October 2026. 18 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.

  1. 202 BC

    Liu Bang is enthroned as the Emperor of China, beginning four centuries of rule by the Han dynasty.

    Asia · Han dynastyWikipedia: Emperor Gaozu of Han
  2. 870

    The Fourth Council of Constantinople closes.

  3. 1525

    Aztec king Cuauhtémoc is executed on the order of conquistador Hernán Cortés.

    no place on the mapWikipedia: Aztecs
  4. 1638

    The Scottish National Covenant is signed in Edinburgh.

    Britain & Ireland · EdinburghWikipedia: National Covenant
  5. 1835

    Elias Lönnrot signs and dates the foreword to the first version of the Kalevala, the so-called Old Kalevala.

    no place on the mapWikipedia: Elias Lönnrot
  6. 1844

    A gun explodes on board the steam warship USS Princeton during a pleasure cruise down the Potomac River, killing six, including Secretary of State Abel Upshur. President John Tyler, who is also on board, is not injured from the blast.

    no place on the mapWikipedia: USS Princeton
  7. 1874

    In one of the longest cases ever heard in an English court, the claimant in the Tichborne case was convicted of perjury for attempting to assume the identity of the missing heir to the Tichborne baronetcy.

    no place on the mapWikipedia: Tichborne case
  8. 1893

    USS Indiana, the lead ship of her class and the first battleship in the United States Navy comparable to foreign battleships of the time, was launched.

  9. 1897

    Ranavalona III, the last sovereign ruler of the Kingdom of Madagascar, was deposed by French military forces.

    Africa · ImerinaWikipedia: Ranavalona III
  10. 1904

    The most successful football club in Portugal, S.L. Benfica, was founded in Lisbon as Sport Lisboa.

  11. 1914

    In the aftermath of the Balkan Wars, Greeks living in southern Albania proclaimed the short-lived Autonomous Republic of Northern Epirus.

    Europe · Autonomous Republic of Northern EpirusWikipedia: Balkan Wars
  12. 1922

    The United Kingdom ends its protectorate over Egypt through a Unilateral Declaration of Independence.

  13. 1925

    The Charlevoix-Kamouraska earthquake strikes northeastern North America.

    North America · 1925 Charlevoix–Kamouraska earthquakeWikipedia: 1925 Charlevoix–Kamouraska earthquake
  14. 1928

    Indian physicist C. V. Raman and his colleagues discovered what is now known as Raman scattering, for which he later became the first Asian to win the Nobel Prize in Physics.

  15. 1939

    In one of the most famous errors in lexicography, the erroneous word dord was discovered in Webster's New International Dictionary by an editor.

    no place on the mapWikipedia: Dord
  16. 1947

    February 28 incident: In Taiwan, civil disorder is put down with the death of an estimated 18,000 - 28,000 civilians.

    Asia · February 28 incidentWikipedia: February 28 incident
  17. 1948

    The 1948 Accra riots erupt following a march by ex-servicemen of the Gold Coast Regiment towards the seat of the colonial government at Christiansborg Castle, where they were fired upon by Superintendent Colin Imray, leading to the killing of Sergeant Adjetey, Corporal Attipoe and Private Odartey Lamptey and the arrest of the Big Six in the Gold Coast.

    Africa · AccraWikipedia: 1948 Accra riots
  18. 1958

    A school bus in Floyd County, Kentucky hits a wrecker truck and plunges down an embankment into the rain-swollen Levisa Fork river. The driver and 26 children die in one of the worst school bus accidents in U.S. history.

    North America · Prestonsburg, Kentucky, bus crashWikipedia: Prestonsburg, Kentucky, bus crash
  19. 1959

    Discoverer 1, an American spy satellite that is the first object intended to achieve a polar orbit, is launched but fails to achieve orbit.

    no place on the mapWikipedia: Discoverer 1
  20. 1963

    Chicago alderman Benjamin F. Lewis was murdered in his office by unknown assailants two days after having been reelected.

    no place on the mapWikipedia: Benjamin F. Lewis
  21. 1966

    A NASA T-38 Talon crashes into the McDonnell Aircraft factory while attempting a poor-visibility landing at Lambert Field, St. Louis, killing astronauts Elliot See and Charles Bassett.

    North America · 1966 NASA T-38 crashWikipedia: 1966 NASA T-38 crash
  22. 1969

    The 1969 Portugal earthquake hits Portugal, Spain and Morocco.

    Oceans · 1969 Portugal earthquakeWikipedia: 1969 Portugal earthquake
  23. 1972

    Japanese police stormed a mountain lodge near Karuizawa, Nagano Prefecture, to end a ten-day siege by members of the paramilitary group United Red Army.

    Asia · Karuizawa, NaganoWikipedia: Law enforcement in Japan
  24. 1973

    Aeroflot Flight X-167 crashes during takeoff from Semey Airport, killing 32 people.

    Asia · Aeroflot Flight X-167Wikipedia: Aeroflot Flight X-167
  25. 1974

    The British election ends in a hung parliament after the Jeremy Thorpe-led Liberal Party achieved their biggest vote share since 1929.

  26. 1975

    In London, an underground train fails to stop at Moorgate terminus station and crashes into the end of the tunnel, killing 43 people.

  27. 1983

    The final episode of M*A*S*H airs, with almost 110 million viewers.

  28. 1985

    The Provisional Irish Republican Army carries out a mortar attack on the Royal Ulster Constabulary police station at Newry, killing nine officers.

    Britain & Ireland · 1985 Newry mortar attackWikipedia: 1985 Newry mortar attack
  29. 1986

    Olof Palme, 26th Prime Minister of Sweden, is assassinated in Stockholm.

    Europe · Assassination of Olof PalmeWikipedia: Assassination of Olof Palme
  30. 1990

    Space Shuttle Atlantis is launched on STS-36.

  31. 1993

    Bureau of Alcohol, Tobacco and Firearms (ATF) agents raid the Branch Davidian church in Waco, Texas with a warrant to arrest the group's leader David Koresh, starting a 51-day standoff.

    North America · Waco siegeWikipedia: Waco siege
  32. 1997

    A Turkish military memorandum results in the collapse of the coalition government in Turkey.

  33. 1997

    An earthquake in northern Iran is responsible for about 1,100 deaths.

    Asia · 1997 Ardabil earthquakeWikipedia: 1997 Ardabil earthquake
  34. 1997

    GRB 970228, a highly luminous 80-second flash of gamma rays, was detected on Earth, providing early evidence that gamma-ray bursts occur well beyond the Milky Way.

    no place on the mapWikipedia: GRB 970228
  35. 1997

    Two heavily armed bank robbers exchanged gunfire with officers of the Los Angeles Police Department in North Hollywood, in one of the most intense gun battles in American police history.

    North America · North Hollywood shootoutWikipedia: North Hollywood shootout
  36. 2001

    A high-speed train crash occurred near Selby in North Yorkshire, England, killing 10 and injuring 82.

    Britain & Ireland · SelbyWikipedia: Selby rail crash
  37. 2001

    The 2001 Nisqually earthquake, having a moment magnitude of 6.8, with epicenter in southern Puget Sound, damages the Seattle metropolitan area.

    North America · 2001 Nisqually earthquakeWikipedia: 2001 Nisqually earthquake
  38. 2002

    During the religious violence in Gujarat, 97 people are killed in the Naroda Patiya massacre and 69 in the Gulbarg Society massacre.

    Asia · Naroda Patiya massacreWikipedia: 2002 Gujarat violence
  39. 2013

    Pope Benedict XVI resigns as the pope of the Catholic Church, becoming the first pope to do so voluntarily since Pope Gregory XII in 1415.

  40. 2021

    Bus drivers in Greater Manchester began an eleven-week strike, one of the longest in British transportation history.

    Britain & Ireland · Greater ManchesterWikipedia: 2021 Go North West strike
  41. 2023

    Two trains collide south of the Vale of Tempe in Greece, leading to the deaths of at least 57 people and leaving 58 missing and 85 injured.

    Europe · GreeceWikipedia: Tempi train crash
  42. 2024

    Prime Minister Modi of India inaugurates the 2nd Space Port of India - Kulasekarapattinam Spaceport.

    Asia · SSLV Launch ComplexWikipedia: Prime minister
  43. 2026

    The United States and Israel launch attacks across Iran, assassinating Supreme Leader Ali Khamenei. Retaliatory strikes are launched by Iran against US military bases in the Gulf, with explosions reported in Bahrain, Kuwait, Qatar and the UAE.

    Asia · Assassination of Ali KhameneiWikipedia: Assassination of Ali Khamenei

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 Chinese and were translated for this page.

  1. 1811

    In the Banda Oriental (present-day Uruguay), the patriot Venancio Benavides issues the Grito de Asencio, beginning the Eastern Revolution.

    Latin America · Cry of AsencioTranslated from the list on Wikipedia in SpanishWikipedia: Grito de Asencio
  2. 2018

    The United States Senate unanimously passes the Taiwan Travel Act and sends it to the White House. US President Donald Trump formally signs it on 16 March, making it US law, and the Taiwan Travel Act formally takes effect.

    North America · White HouseTranslated from the list on Wikipedia in ChineseWikipedia: 白宫

Who was born on 28 February

In order of how many Wikipedia editions have an article about each. The first 60 of 148 are shown.

  1. 1533

    Michel de Montaigne, French philosopher and author (died 1592)

    Château de MontaigneWikipedia: Michel de Montaigne
  2. 1901

    Linus Pauling, American chemist and activist, Nobel Prize laureate (died 1994)

    PortlandWikipedia: Linus Pauling
  3. 1953

    Paul Krugman, American economist and academic, Nobel Prize laureate

    AlbanyWikipedia: Paul Krugman
  4. 1929

    Frank Gehry, Canadian-American architect and designer (died 2025)

    TorontoWikipedia: Frank Gehry
  5. 1955

    Gilbert Gottfried, American comedian, actor, and singer (died 2022)

    Coney IslandWikipedia: Gilbert Gottfried
  6. 1948

    Steven Chu, American physicist and politician, 12th United States Secretary of Energy, Nobel Prize laureate

    St. LouisWikipedia: Steven Chu
  7. 1930

    Leon Cooper, American physicist and academic, Nobel Prize laureate (died 2024)

    New York CityWikipedia: Leon Cooper
  8. 1942

    Dino Zoff, Italian footballer

    Mariano del FriuliWikipedia: Dino Zoff
  9. 1939

    Daniel C. Tsui, Chinese-American physicist and academic, Nobel Prize laureate

    Baofeng CountyWikipedia: Daniel C. Tsui
  10. 1915

    Peter Medawar, Brazilian-English biologist and immunologist, Nobel Prize laureate (died 1987)

    PetrópolisWikipedia: Peter Medawar
  11. 1940

    Mario Andretti, Italian-American racing driver

    MotovunWikipedia: Mario Andretti
  12. 1976

    Ali Larter, American actress and model

    Cherry HillWikipedia: Ali Larter
  13. 1985

    Jelena Janković, Serbian tennis player

    BelgradeWikipedia: Jelena Janković
  14. 1957

    John Turturro, American actor and director

    BrooklynWikipedia: John Turturro
  15. 1999

    Luka Dončić, Slovenian basketball player

    LjubljanaWikipedia: Luka Dončić
  16. 1994

    Arkadiusz Milik, Polish footballer

    TychyWikipedia: Arkadiusz Milik
  17. 1896

    Philip Showalter Hench, American physician and endocrinologist, Nobel Prize laureate (died 1965)

    PittsburghWikipedia: Philip Showalter Hench
  18. 1942

    Brian Jones, English guitarist, songwriter, and producer (died 1969)

    CheltenhamWikipedia: Brian Jones
  19. 1982

    Natalia Vodianova, Russian-French model and actress

    Nizhny NovgorodWikipedia: Natalia Vodianova
  20. 1944

    Sepp Maier, German footballer and manager

    MettenWikipedia: Sepp Maier
  21. 1966

    Paulo Futre, Portuguese footballer

    MontijoWikipedia: Paulo Futre
  22. 1969

    Robert Sean Leonard, American actor

    WestwoodWikipedia: Robert Sean Leonard
  23. 1833

    Alfred von Schlieffen, German military strategist (died 1913)

    BerlinWikipedia: Alfred von Schlieffen
  24. 1948

    Mercedes Ruehl, American actress

    QueensWikipedia: Mercedes Ruehl
  25. 1987

    Antonio Candreva, Italian footballer

    RomeWikipedia: Antonio Candreva
  26. 2000

    Moise Kean, Italian footballer

    VercelliWikipedia: Moise Kean
  27. 1980

    Christian Poulsen, Danish footballer

    AsnæsWikipedia: Christian Poulsen
  28. 1690

    Alexei Petrovich, Tsarevich of Russia, eldest son of Peter the Great (died 1718)

  29. 1948

    Bernadette Peters, American actress, singer, and author

    QueensWikipedia: Bernadette Peters
  30. 1984

    Karolína Kurková, Czech model and actress

    DěčínWikipedia: Karolína Kurková
  31. 1985

    Diego, Brazilian footballer

    Ribeirão PretoWikipedia: Diego
  32. 1990

    Sebastian Rudy, German footballer

    Villingen-SchwenningenWikipedia: Sebastian Rudy
  33. 1998

    Teun Koopmeiners, Dutch footballer

    CastricumWikipedia: Teun Koopmeiners
  34. 1683

    René Antoine Ferchault de Réaumur, French entomologist and academic (died 1757)

  35. 1946

    Robin Cook, Scottish educator and politician, Secretary of State for Foreign and Commonwealth Affairs (died 2005)

    BellshillWikipedia: Robin Cook
  36. 1979

    Sébastien Bourdais, French race car driver

    Le MansWikipedia: Sébastien Bourdais
  37. 1552

    Jost Bürgi, Swiss mathematician and clockmaker (died 1632)

    LichtensteigWikipedia: Jost Bürgi
  38. 1866

    Vyacheslav Ivanov, Russian poet and playwright (died 1949)

    MoscowWikipedia: Vyacheslav Ivanov
  39. 1979

    Ivo Karlović, Croatian tennis player

    ZagrebWikipedia: Ivo Karlović
  40. 1894

    Ben Hecht, American director, producer, and screenwriter (died 1964)

    New York CityWikipedia: Ben Hecht
  41. 1980

    Tayshaun Prince, American basketball player

    ComptonWikipedia: Tayshaun Prince
  42. 1942

    Oliviero Toscani, Italian photographer (died 2025)

    MilanWikipedia: Oliviero Toscani
  43. 1970

    Noureddine Morceli, Algerian runner

    TénèsWikipedia: Noureddine Morceli
  44. 1909

    Stephen Spender, English author and poet (died 1995)

    KensingtonWikipedia: Stephen Spender
  45. 1944

    Storm Thorgerson, English graphic designer (died 2013)

    Potters BarWikipedia: Storm Thorgerson
  46. 1978

    Benjamin Raich, Austrian skier

    Arzl im PitztalWikipedia: Benjamin Raich
  47. 2005

    Vitor Roque, Brazilian footballer

    TimóteoWikipedia: Vitor Roque
  48. 1906

    Bugsy Siegel, American gangster (died 1947)

    New York CityWikipedia: Bugsy Siegel
  49. 2000

    Josip Šutalo, Croatian footballer

    ČapljinaWikipedia: Josip Šutalo
  50. 1944

    Kelly Bishop, American actress

    Colorado SpringsWikipedia: Kelly Bishop
  51. 1945

    Bubba Smith, American football player and actor (died 2011)

    BeaumontWikipedia: Bubba Smith
  52. 1949

    Zoia Ceaușescu, Romanian mathematician, daughter of Communist leader Nicolae Ceaușescu and his wife Elena Ceaușescu (died 2006)

    BucharestWikipedia: Zoia Ceaușescu
  53. 1974

    Lee Carsley, English-Irish footballer and manager

    BirminghamWikipedia: Lee Carsley
  54. 1993

    Éder Álvarez Balanta, Colombian footballer

    BogotáWikipedia: Éder Álvarez Balanta
  55. 1996

    Lucas Boyé, Argentinian footballer

    San GregorioWikipedia: Lucas Boyé
  56. 1884

    Ants Piip, Estonian lawyer and politician, 7th Prime Minister of Estonia (died 1942)

    TuhalaaneWikipedia: Ants Piip
  57. 1994

    Alex Caruso, American basketball player

    College StationWikipedia: Alex Caruso
  58. 1518

    Francis III, Duke of Brittany, Duke of Brittany (died 1536)

    Château d'AmboiseWikipedia: Francis III of Brittany
  59. 1931

    Gavin MacLeod, American actor, Christian activist, and author (died 2021)

    Mount KiscoWikipedia: Gavin MacLeod
  60. 1953

    Ricky Steamboat, American professional wrestler

    West PointWikipedia: Ricky Steamboat

What is celebrated on 28 February

  • Christian feast day: February 28 (Eastern Orthodox liturgics)
  • Kalevala Day, also known as the Finnish Culture Day (Finland)
  • National Science Day (India)
  • Peace Memorial Day (Taiwan)
  • Andalusia Day (Spain)

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.

Download the day’s picture

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

More pages about birthdays