This is a record of material that was recently featured on theMain Page as part ofDid you know (DYK). Recently creatednew articles, greatly expanded formerstub articles and recently promotedgood articles are eligible; you cansubmit them for consideration.
Archives are generally grouped by month of Main Page appearance. (Currently, DYK hooks are archived according to the date and time that they were takenoff the Main Page.) To find which archive contains the fact that appeared on Did you know, go to the article'stalk page and follow the archive link in the DYK talk page message box or the Article Milestones box.
Did you know...
31 January 2021
- 12:00, 31 January 2021 (UTC)

Cortinarius ainsworthii
- ... that amongKew's highlights of speciesdescribed in 2020 were six Britishwebcaps:Cortinarius ainsworthii(example pictured),C. heatherae,C. britannicus,C. scoticus,C. aurae, andC. subsaniosus?
- ... that "Paint It Black" bythe Rolling Stones, which was inducted into theGrammy Hall of Fame, was almost scrapped?
- ... thatKafilur Rahman Nishat Usmani translated the Islamic law bookFatawa 'Alamgiri fromArabic intoUrdu?
- ... that the development ofThomas Jefferson Park was intended to help Italian Harlem, described as "for many years the black spot of Harlem"?
- ... that the 9th-centuryAbbasid caliphal-Wathiq, whose five-year reign is considered by historians to be unremarkable, was heavily fictionalized in the 18th-centuryGothic fantasy novelVathek?
- ... that both theMayotte Marine Natural Park and theGlorioso Islands Marine Natural Park entirely cover theexclusive economic zones of the islands within them?
- ... thatMillicent Taplin left school at 13 and never studied art full time, yet became one ofWedgwood's main ceramics designers?
- ... that theU.S. Supreme Courtwill decide whether a frustrated high-school student whoSnapchatted "fuck school fuck softball fuck cheer fuck everything" can be suspended from cheerleading for a year?
- 00:00, 31 January 2021 (UTC)

George Harper
30 January 2021
- 12:00, 30 January 2021 (UTC)

Pallas's cat
- 00:00, 30 January 2021 (UTC)
29 January 2021
- 12:00, 29 January 2021 (UTC)

Saint or sibyl?
- ... that art historians disagree as to whether two figures ina painting(detail pictured) by theMaster of Delft are saints orsibyls?
- ... that American Brigadier GeneralHarold Francis Loomis was in charge of the rearmament of French forces during World War II?
- ... thatOverdrawn at the Memory Bank was recorded on videotape instead ofphotographic film so as not to be as expensive asBlade Runner?
- ... thatKathleen Heddle was one of two Canadians to win three gold medals at theSummer Olympic Games?
- ... that eleven people, nine of them minors, died ina sugar plantation fire inCagua, Venezuela, while trying to hunt rabbits?
- ... thatMinnie Lou Crosthwaite, the first Black woman to pass the teacher exam in Nashville's segregated school system, andMinnie Lee Crosthwaite, one of Kansas City's first Black social workers, both attendedFisk University?
- ... thatSampson's snakeroot is traditionally used to help knit broken bones and as a salve on wounds, ulcers and boils?
- ... thatZéna M'Déré led a protest movement inMayotte in which women tickled their political opponents, forcing them to comply with their demands?
- 00:00, 29 January 2021 (UTC)

Mangrove jewel bug adults on a river poison tree leaf
28 January 2021
- 12:00, 28 January 2021 (UTC)

Adlai Stevenson II
- 00:00, 28 January 2021 (UTC)

Mary Jones in 1865
27 January 2021
- 12:00, 27 January 2021 (UTC)

Vision wrapping of the Ringturm
- ... that theRingturm, a 65-year-old skyscraper in Vienna, has been wrapped by artists in summer, such asMihael Milunović'sVision(pictured) in 2017?
- ... that the formation of the Central Irian Jaya province in Indonesia, which was headed byHerman Monim, caused a civil war between the supporters and opponents of the province?
- ... that the 1951 filmThe Basketball Fix is based on a real-life scandal involvingcollege basketball betting?
- ... that architectPiers Taylor had to carry the materials for building his award-winning home "Moonshine" over a 600-metre (2,000 ft) woodland incline?
- ... that the bookIn Praise of Blood was described as "an immediate, destabilizing influence on the world of orthodox Rwandan scholarship"?
- ... thatSusan Estes is the first woman to have her own company in the historically malebond-trading business in the U.S.?
- ... that during theYamagata Hanagasa Festival, ten thousand people sing and dance onJapan National Route 112?
- ... that "New Year's Day" byTaylor Swift was recorded in "scratch takes" that did not filter out unwanted sounds from the outside environment?
- 00:00, 27 January 2021 (UTC)
26 January 2021
- 12:00, 26 January 2021 (UTC)

Manjappada roadshow
- ... thatManjappada(pictured), asupporters' group ofKerala Blasters FC, coordinated and brought forty-one busloads of their fans acrossKerala to the venue for the opening match ofthe 2019–20 season?
- ... that despiteJames Snyder having taught ata women's college for over 20 years, hisNorthern Renaissance Art of 1985 was criticized for usinggender stereotypes?
- ... that horse-mounted elements of theFrench 1st Cavalry Brigade helped hold up the advance of tanks from the1st Panzer Division for a day in May 1940?
- ... that the root of theslimflower scurfpea can be eaten raw or cooked, or ground up and used as an ingredient in bread-making?
- ... that with "Homura" andLeo-Nine,LiSA became the first female artist in 16 years to debut a song and an album simultaneously at number one in Japan sinceUtada Hikaru?
- ... thatEleanor Keaton, who at age 21 became the third wife of silent-film comedianBuster Keaton, was widely credited with rehabilitating his life and career?
- ... thatThe Magic of Chocolate's volumes are ordered alphabetically rather than numerically?
- ... that afterSaint Eustadiola, a 7th centuryabbess inBourges, France, prayed with her nuns for rain during a drought, they got drenched before they were able to return to the convent?
- 00:00, 26 January 2021 (UTC)

Gotthilf Fischer
25 January 2021
- 12:00, 25 January 2021 (UTC)

Hearst Tower
- 00:00, 25 January 2021 (UTC)

Antoinette Dinga Dzondo
24 January 2021
- 12:00, 24 January 2021 (UTC)

Northern masked owl
- ... thatnorthern masked owl(example pictured) chicks hiss to ask for food, while adults hiss to defend nests?
- ... thatJoseph McLain held 30 patents, including for smoke grenades, underwater torches, and flares?
- ... thatArtémis, cœur d'artichaut is a female buddy film inspired byGreek mythology,Carl Jung andÉric Rohmer?
- ... that the specific name ofLaudakia nupta comes from the Latin word for a bride who veils herself?
- ... thatZintkala Nuni, who survived theWounded Knee Massacre, gave birth to a stillborn boy in Nebraska'sMilford Industrial Home, at one time the only state-funded institution in the US for unmarried pregnant women?
- ... that due toBrian Crabtree's closeness with his brothers in professional wrestling,Kendo Nagasaki once refused to wrestle "Big Daddy" Crabtree with Brian refereeing?
- ... that the 1978science-fiction novelDreamsnake includes a named character for whomgender pronouns are never used, thereby subverting gender expectations?
- ... thatSvetlana Lloyd accidentally became a model forChristian Dior, after wandering into his Paris boutique looking for a receptionist job?
- 00:00, 24 January 2021 (UTC)

DC-XA Clipper Graham
23 January 2021
- 12:00, 23 January 2021 (UTC)

Vilma Núñez
- 00:00, 23 January 2021 (UTC)

Richards Building
22 January 2021
- 12:00, 22 January 2021 (UTC)

To the Rescue by Hilda Annetta Walker
- 00:00, 22 January 2021 (UTC)

SS Edward L. Ryerson
- ... that thelake freighterEdward L. Ryerson(pictured) is not only the last steam-powered freighter built on theGreat Lakes, but also the last built without aself-unloading boom?
- ... that most Russian citieswere destroyed as a result ofthe Mongol invasion?
- ... that associate justiceWilliam Johnson was the first member of theU.S. Supreme Court who was not a member of theFederalist Party?
- ... that according to legend,Växjö Cathedral in Sweden was founded byan English saint?
- ... thatDominic Thiem, winner of the2020 US Open, is the first player since the2004 French Open to come back from two sets down in a Grand Slam final to win the title?
- ... thatVeronica Maggio's 2011 song "Jag kommer" was accused of plagiarizingthe Strokes' "Reptilia", but the singer denied any connection?
- ... thatCharles G. Hopkins accompaniedQueen Emma of Hawaii to Europe and the United States, where she visited Queen Victoria, Emperor Napoleon III, and President Andrew Johnson?
- ... that due to theCOVID-19 pandemic, Japanesecheer screenings, which encourage audience participation, have been replaced by viewers'text messages being superimposed on the screen?
21 January 2021
- 12:00, 21 January 2021 (UTC)
- 00:00, 21 January 2021 (UTC)

Theodore Roosevelt desk in the Truman Oval Office
20 January 2021
- 12:00, 20 January 2021 (UTC)

Isaac Newton
- 00:00, 20 January 2021 (UTC)

Cantata rehearsal in the Dreikönigskirche, 2020
19 January 2021
- 12:00, 19 January 2021 (UTC)

Twokusarigamas
- 00:00, 19 January 2021 (UTC)

Historic buildings on South Main Street in Memphis, Tennessee
18 January 2021
- 12:00, 18 January 2021 (UTC)
- 00:00, 18 January 2021 (UTC)

The Burton Cooper
17 January 2021
- 12:00, 17 January 2021 (UTC)

Saint Émilie de Rodat
- 00:00, 17 January 2021 (UTC)

Clouded leopard
- ... that theclouded leopard(example pictured) is the first cat that diverged from thecommon ancestor of theFelidae more than four million years ago?
- ... thatDebbie Muir retired fromsynchronized swimming at age 20 and coached the Calgary Aquabelles to 22 national titles in ten years?
- ... that inPlaying the Whore,Melissa Gira Grant contends that categorizing all sex work as exploitation or empowerment creates afalse dichotomy?
- ... thatThe Ur-Quan Masters, anopen-source remake of the 1992science-fiction gameStar Control II, has been listed several times as one of the best freePC games ever?
- ... thatLucy Burwell Page Saunders's novelDora Lee features a French-speakingmacaw named Fanchon, inspired byDolley Madison's pet parrot, who attacks three different characters in eight pages?
- ... that although the Philippines and Denmarkestablished relations in 1946, thePhilippine embassy in Copenhagen only opened in 2019?
- ... thatTaylor Swift's 2020 song "Marjorie" has been described as "a heart-rending tribute" to her grandmother, opera singerMarjorie Finlay, who inspired Swift's musical career?
- ... that theIndex Thomisticus covered 10,631,980 words in fifty-six volumes and took an estimated one million hours to create?
16 January 2021
- 12:00, 16 January 2021 (UTC)

Siegfried Pank
- ... thatSiegfried Pank(pictured), the director of the International Telemann Association, was a cellist of theGewandhausorchester and professor of cello andviol?
- ... that the2008 FA Cup Final betweenCardiff City andPortsmouth holds the record for the highest attendance for afootball match at thenew Wembley Stadium, with 89,874?
- ... thatKatherine Loker donated $30 million each toHarvard andUSC, and millions more to develop university, medical, and cultural programs in California?
- ... that prior to the arrival of theYear 24 Group, mostgirls' comics in Japan were written by men?
- ... that memorial directorJens-Christian Wagner blamesAlternative for Germany for the increase in heckling at former Nazi concentration camps in recent years?
- ... that in the1930 United States Senate election in Illinois,Ruth Hanna McCormick was the first woman ever nominated for the U.S. Senate by a major party?
- ... that the defenses of the soft coralLeptogorgia virgulata are useless against the barnacleConopea galeata?
- ... that comedianBlaire Erskine's mock interview dupedMichael Moore into believing she was a Donald Trump supporter stranded and freezing after his Omaha, Nebraska, rally?
- 00:00, 16 January 2021 (UTC)

Miniature from the book of hours of Joan of France
- ... that theNational Library of France was able to buy thebook of hours of Joan of France(detail pictured) thanks to private donations?
- ... thatUtah Utes football playerTy Jordan died on Christmas Day, one day after being named thePac-12 Conference newcomer of the year for 2020?
- ... thatThe Gospel of Afranius, a 1995 Russian novel and polemic challenging an American evangelicalapologist text, has not yet been translated to English?
- ... thatOscar Fritz Schuh created a new style to directMozart operas at theVienna State Opera, focused on the psychology of the characters?
- ... that the wooden freighterJarvis Lord was one of the firstlake freighters ever built?
- ... thatAdele Rose wrote 457 scripts for the British soap operaCoronation Street, more than any other contributor?
- ... that PresidentBarack Obama celebrated his 50th birthday byplaying basketball withShane Battier,LeBron James,Magic Johnson,Maya Moore,Alonzo Mourning,Joakim Noah,Chris Paul, andDerrick Rose?
- ... thatGeorge Orwell described theHyde Park pet cemetery as "perhaps the most horrible spectacle in Britain"?
15 January 2021
- 12:00, 15 January 2021 (UTC)

Patent diagram for the Deats plow
- 00:00, 15 January 2021 (UTC)

Model of Galactic Radiation and Background satellite 1 (GRAB-1)
14 January 2021
- 12:00, 14 January 2021 (UTC)

Adi Utarini
- 00:00, 14 January 2021 (UTC)

Pencil towers in New York City
13 January 2021
- 12:00, 13 January 2021 (UTC)

Rosalbina Caradori as Zora, the slave girl
- 00:00, 13 January 2021 (UTC)

Konrad von Altstetten, his lover, and his falcon
12 January 2021
- 12:00, 12 January 2021 (UTC)

Aramaic document in the Khalili Collection
- 00:00, 12 January 2021 (UTC)

Werner Heisenberg
11 January 2021
- 12:00, 11 January 2021 (UTC)

M42 sub-basement
- 00:00, 11 January 2021 (UTC)
- ... thatMaureen O'Hara andJohn Wayne(both pictured)had such a strong rapport on screen that some people believed that they were married in real life?
- ... that hermit crabs such asPaguristes puncticeps raid octopusmiddens, both for food and for empty mollusc shells?
- ... that as the health commissioner ofChicago in the 1920s,Herman Bundesen advocated the distribution ofprophylactics by the city to combatsexually transmitted diseases?
- ... that "Morgenglanz der Ewigkeit", a 17th-century morning hymn, has been variously translated as "Come, Thou Bright and Morning Star", and as "Dayspring of Eternity"?
- ... thatwomen's rights activistMebrure Aksoley founded an elementary school before serving for more than 40 years in theTurkish parliament,Constituent Assembly, andSenate?
- ... thatLouis Prima being credited as a featured artist onKids See Ghosts' "4th Dimension" marks the third timeKanye West has given this type of posthumous credit?
- ... that the German anthropologistAparna Rao studied the impact of theKashmir conflict on both lives and the environment?
- ... that after discovering a giant larva on the fourthDana expedition,Anton Frederik Bruun said, "I believe in the sea serpent", and lectured on its possible existence?
10 January 2021
- 12:00, 10 January 2021 (UTC)

Stockton Flyer
- 00:00, 10 January 2021 (UTC)

Clarence E. Willard, with a photographic effect showing his increase in height
9 January 2021
- 12:00, 9 January 2021 (UTC)

Santal 33
- 00:00, 9 January 2021 (UTC)

Mercy dog carrying a soldier's helmet (1918)
8 January 2021
- 12:00, 8 January 2021 (UTC)

Recumbent stone (centre) at Aikey Brae
- ... that at 21.5 tonnes, the recumbent(pictured) atAikey Brae stone circle is one of the largest inAberdeenshire?
- ... thatMolly Gray, the newlieutenant governor of Vermont, is a former competitive skier and the daughter ofan Olympic skier?
- ... that bathrooms in some German bars havevomiting basins?
- ... thatEleanor Roosevelt wrote four autobiographical memoirs:This Is My Story (1937),This I Remember (1949),On My Own (1958), andThe Autobiography of Eleanor Roosevelt (1961)?
- ... thatRosl Zapf, amezzo-soprano of theOper Frankfurt who took part in world premieres, appeared at theSalzburg Festival in Mozart'sDie Zauberflöte conducted byGeorg Solti?
- ... thatLiDAR can be used to make adigital terrain model?
- ... that theButler mansion was built withparquette oak floors, elaboratefrescos,wainscot paneling—and a fireproof wing to store the archives of theU.S. Coast and Geodetic Survey?
- ... that during a spacewalk,Jean-Pierre Haigneré, a Frenchspationaut and crew member of theMir space station, deployedSputnik 99 onto its orbit by simply releasing the satellite by hand?
- 00:00, 8 January 2021 (UTC)

Clara Bow
7 January 2021
- 12:00, 7 January 2021 (UTC)

Dosan Ahn Chang Ho Memorial Interchange
- 00:00, 7 January 2021 (UTC)

Christine Nagel
6 January 2021
- 12:00, 6 January 2021 (UTC)

Detail fromAdoration of the Magi by the Master
- ... that the existence of the painter known as theMaster of the Lille Adoration(painting detail pictured), active in 16th-centuryAntwerp, was only proposed in 1995?
- ... thatGernot Roll, considered an expert in literary adaptations, was the cinematographer for the 11-part television seriesThe Buddenbrooks based onThomas Mann's novel?
- ... that althoughfracking is banned inMaryland, state officials support theEastern Shore Pipeline, which carries fracked gas?
- ... thatMichael White served inthe same regiment as his father and married the daughter of another of its officers?
- ... that in theMediterranean Sea, recruitment of the bryozoanCallopora lineata takes place in February and March, whereas in theIsle of Man, it takes place all year round?
- ... that in his first run forTexas House of Representatives,El Franco Lee had to pay a $400 fee to remain on the ballot because hisnominating petition did not have enough verifiable signatures?
- ... that dissections forGray's Anatomy were carried out at the medical school in London'sKinnerton Street?
- ... that ina 2018 U.S. district court case, software companyStardock unsuccessfully tried to claim trademarks for the names of aliens from the gameStar Control?
- 00:00, 6 January 2021 (UTC)

Max Born
- ... that according toa 2005 biography,Max Born(pictured), the author of the classic textbookPrinciples of Optics, felt dejected when he did not share in the 1932Nobel Prize that was given to his assistantWerner Heisenberg?
- ... thatLaura Purser-Rose became the first woman to sign her name on theGreen Monster atFenway Park?
- ... thatLenín Moreno, who was elected president of Ecuador in 2017, is not seeking re-election in the2021 general election?
- ... thatAnton Colella was named the chief executive of theInstitute of Chartered Accountants of Scotland even though his only qualifications were in teachingCatholic theology?
- ... that in "Body",Megan Thee Stallion name-drops animal-rights activistCarole Baskin, who had previously criticized the rapper's use of big cats as props in a music video?
- ... that according to historianStefan Ihrig, the Nazis sought to emulate Turkey, which they viewed as a "postgenocidal paradise"?
- ... thatecological speciation can give rise to new species by the way animals interact with their environment and each other?
- ... that Hawaiian princessKaʻiulani was an avid surfer and professed in an interview, "I'm sure I was a seal in another world because I am so fond of the water"?
5 January 2021
- 00:00, 5 January 2021 (UTC)
4 January 2021
- 00:00, 4 January 2021 (UTC)
3 January 2021
- 00:00, 3 January 2021 (UTC)

Panchkuta Basadi, Humcha
2 January 2021
- 00:00, 2 January 2021 (UTC)

Dinah Washington
- ... that a ranking of the greatestdouble-entendre songs of all time included "Big Long Slidin' Thing" byDinah Washington(pictured), "Need a Little Sugar in My Bowl" byBessie Smith, "It Ain't the Meat (It's the Motion)" bythe Swallows, "Keep On Churnin' (Till the Butter Comes)" byWynonie Harris, and "Big Ten Inch Record" byAerosmith?
- ... thatXO was one of the lowest-selling games in theSuper Robot Wars series due toXbox 360's unwelcomingcommercial and critical reception in Japan?
- ... thatFrances Spatz Leighton was called the "Queen of Female Ghosts" forghostwriting many memoirs?
- ... that the 1988Bruges speech byMargaret Thatcher has been described as "setting the UK on the path toBrexit"?
- ... that afterIllinois overhauledits Freedom of Information Act on January 1, 2010, the law became regarded as one of the most liberal public-records statutes in the United States?
- ... that in 1982, aMagnificat in German composed in 1707 for soprano,traverso, strings, andcontinuo and attributed toBach andTelemann, was identified as a composition byMelchior Hoffmann?
- ... that Spanish physicistTeresa Rodrigo worked on the discovery of theHiggs boson atCERN and the discovery of thetop quark atFermilab?
- ... thatManner, a Macau entertainment company, opened a store that sellsalmond biscuits withcondom-looking wrapping, and gives customers free beefjerky if they show aparking ticket?
1 January 2021
- 00:00, 1 January 2021 (UTC)

Micrograph of fumarole minerals from
Tolbachik- ... that volcanicfumaroles deposit more than 240 distinct, rarefumarole minerals(examples pictured)?
- ... thatBritish Army officerSir Augustus FitzGeorge served asequerry to his father,Prince George, Duke of Cambridge, and accompaniedAlbert Edward, Prince of Wales, on his visit to India?
- ... that the 1983 memoirHome Before Morning, which details the author's time as aVietnam War nurse, is dedicated to "all of the unknown women who served forgotten in their wars"?
- ... that Israeli lawyerGonen Ben Itzhak, a prominent figure in theprotests against Benjamin Netanyahu, is a formerShin Bet handler ofHamas mole "The Green Prince"?
- ... that the results of the2021 Uzbek presidential election are expected to mirror thosefrom 2016, which were widely considered illegitimate?
- ... thatLaVon Mercer, who was homeless as a teenager, played in theIsraeli Basketball Premier League for 14 years and was its 1980–81 season MVP?
- ... that Milestone House at theEdinburgh City Hospital was the first custom-built AIDS hospice in the UK?
- ... that in a three-month period in mid- to late 2020, nearly half of Americans were subject to anSSA impersonation scam robocall?