This is a record of material that was recently featured on the Main Page as part of Did you know (DYK). Recently created new articles, greatly expanded former stub articles and recently promoted good articles are eligible; you can submit 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 taken off the Main Page.) To find which archive contains the fact that appeared on Did you know, go to article's talk page and follow the archive link in the DYK talk page message box.
- 1 Did you know...
- 1.1 22 July 2019
- 1.2 21 July 2019
- 1.3 20 July 2019
- 1.4 19 July 2019
- 1.5 18 July 2019
- 1.6 17 July 2019
- 1.7 16 July 2019
- 1.8 15 July 2019
- 1.9 14 July 2019
- 1.10 13 July 2019
- 1.11 12 July 2019
- 1.12 11 July 2019
- 1.13 10 July 2019
- 1.14 9 July 2019
- 1.15 8 July 2019
- 1.16 7 July 2019
- 1.17 6 July 2019
- 1.18 5 July 2019
- 1.19 4 July 2019
- 1.20 3 July 2019
- 1.21 2 July 2019
- 1.22 1 July 2019
Did you know...
22 July 2019
- 00:00, 22 July 2019 (UTC)
- ... that Michael Collins (pictured), the command module pilot for Apollo 11, was the first person to perform two spacewalks in a single mission?
- ... that the 1957 launch of Sputnik 1, the first artificial satellite, led to a period of public anxiety in the United States and accelerated the Space Race?
- ... that pilot-cosmonaut Yuri Gagarin, the first human in space and first to orbit the Earth, ejected from his descending spacecraft at an altitude of about 7,000 metres (23,000 ft)?
- ... that two Russian tortoises were aboard the first spacecraft to return safely from a trip around the Moon?
- ... that Mae Jemison, the first black woman in space, worked at a Cambodian refugee camp in Thailand and was a medical officer for the Peace Corps before becoming an astronaut?
- ... that the Soviet probe Luna 2, the first human-made object to make contact with the Moon, began a trend of crash landing missions that continued even after soft landings were mastered?
- ... that David Scott's performance under pressure during Gemini 8, the first mission to achieve a docking in space, led to his selection for the Apollo program?
- ... that cosmonaut Valentina Tereshkova made 42 trips outside the Soviet Union between 1963 and 1970 in response to invitations she received after becoming the first woman in space?
- ... that Félicette, the first cat in space, was subjected to 9.5 g of acceleration and five minutes of weightlessness?
21 July 2019
- 00:00, 21 July 2019 (UTC)
- ... that a swan sculpture (pictured) in Stapenhill Gardens, described by the park superintendent as a "monstrosity" after its construction in 1953, is now a town landmark?
- ... that Binod Chaudhary is the first Nepali to be listed on Forbes's billionaire list?
- ... that four of the fourteen astronauts in NASA Astronaut Group 3 were killed in training accidents before they had a chance to fly in space?
- ... that the oboist and composer Rolf Riehm taught music theory in Frankfurt from 1974 to 2000 and wrote an opera, Sirenen, for a 2014 premiere at the Oper Frankfurt?
- ... that during the 1924–25 season, Cardiff City F.C. became the first Welsh team to reach an FA Cup final?
- ... that Captain Henry Meintjes, a South African World War I flying ace, was shot in the wrist when far over enemy lines but still managed to bring his airplane back and land it safely?
- ... that the extinction of the Bramble Cay melomys was described as the first for a mammal species due to anthropogenic climate change?
- ... that when he graduated in medicine at the age of 24, James Fraser was already Sir James Fraser?
20 July 2019
- 00:00, 20 July 2019 (UTC)
- ... that the XIX Army Corps represented Germany as it ceded Brest-Litovsk to the Soviet Union in the German–Soviet military parade (commanders pictured)?
- ... that Maria Magnani Noya was the first woman mayor of Turin and the second woman mayor in Italy?
- ... that David Cage started writing the video game The Nomad Soul because he had grown tired of being a composer?
- ... that Wu Ziliang developed the technology to separate uranium-235 for China's first nuclear bomb?
- ... that Sommen charrs are a relict population that has survived because of Lake Sommen's great depth, and its cold and oxygen-rich waters?
- ... that sculptor Alice King Chatham used plaster casts to design custom-fitted oxygen masks and helmets for Project Mercury astronauts?
- ... that Rhys Griffiths has won the Welsh Premier League Golden Boot more times than any other player, winning for seven consecutive seasons between 2006 and 2012?
- ... that Stephen King killed off a radio station in the Bangor area?
19 July 2019
- 00:00, 19 July 2019 (UTC)
- ... that while the leaf shape varies among hybrids of Episcia cupreata (pictured), the flowers always have the same form?
- ... that the scenic design for Wagner's Der Ring des Nibelungen by Günther Schneider-Siemssen was shown at the Metropolitan Opera from 1986 to 2009?
- ... that Portland's NS Line opened in 2001 as the first newly built streetcar line in the United States in 50 years to use modern vehicles?
- ... that according to a study conducted by epidemiologist Xifeng Wu and her colleagues, fifteen minutes of moderate exercise per day can increase lifespan by an average of three years?
- ... that the Gloucester tabula set includes gaming pieces depicting a copulating couple, a hanging man, and a manticore?
- ... that Robyn Benincasa ran a marathon four months after having surgery for osteoarthritis and being told she might never run again?
- ... that George Gosse was awarded the George Cross for disarming three German naval mines under exceptionally hazardous conditions?
- ... that six of the Next Nine astronauts flew to the Moon, and three walked on it?
18 July 2019
- 00:00, 18 July 2019 (UTC)
- ... that when Roger B. Chaffee (pictured) was selected for Apollo 1, he was the youngest American astronaut to earn a NASA mission assignment?
- ... that as the film negatives used for the first Indian feature film were of limited spectral sensitivity, the colour red was avoided in sets, costumes, and make-up?
- ... that Eleanor C. Pressly helped develop and launch a series of Aerobee rockets during the 1957–1958 International Geophysical Year?
- ... that in South Africa, the mosquito Anopheles funestus used to breed in fast-moving streams but now prefers swamps?
- ... that HMS Lavinia was saved from being broken up, only to be sunk in a collision with another ship?
- ... that Isabel Martin was one of the Australian Devils who won silver at the 2019 Women's U25 Wheelchair Basketball World Championship in Suphan Buri, Thailand?
- ... that it took Scarecrow Press 25 years to complete its series of historical dictionaries of African countries?
- ... that the idea for the song "Anyone Who Knows What Love Is (Will Understand)" came to Jeannie Seely at the age of 23, and she was still earning royalties for it at age 78?
17 July 2019
- 00:00, 17 July 2019 (UTC)
- ... that Tiny the Wonder (pictured) could kill 200 rats per hour in London's rat-baiting pits?
- ... that Patrick Francheterre played for, coached and managed the France men's national ice hockey team, and helped cover expenses when the French Ice Hockey Federation went bankrupt?
- ... that 50 years ago today, Maspalomas Station in the Canary Islands was the first ground station to make contact with the Apollo 11 astronauts in Earth orbit, about 16 minutes into the flight?
- ... that Sir Lancelot Barrington-Ward performed surgery on Prince Albert, who later became King George VI?
- ... that during its 2019 election campaign, the Indian National Congress promised to abolish the sedition law, although the government had arrested 9,000 people for sedition alone in 2012–2013?
- ... that Gao Xiaoxia abandoned her PhD studies to leave America in 1951, just before the US government banned Chinese students from returning home?
- ... that the clingfish Diplecogaster bimaculata has been photographed cleaning a moray eel?
- ... that in 2001, Bury Football Club's first mascot, "Robbie the Bobby", was sent off three times by referees for bad behaviour?
16 July 2019
- 00:00, 16 July 2019 (UTC)
- ... that the new Djamaa el Djazaïr mosque (pictured) is the tallest building in Africa?
- ... that the Irish musician Gregory Gray, who started his career in a boy band, became the cult indie musician Mary Cigarettes?
- ... that in 1974, a United States Army private first class stole a helicopter and landed it on the White House lawn?
- ... that Catherine Despard helped compose the speech that her husband, the ringleader of the Despard Plot, gave at the gallows?
- ... that American pool player John Schmidt holds the record for the longest straight pool run at 626?
- ... that Strombosia pustulata is one of over two hundred species of tree growing in the Omo Forest Reserve?
- ... that Damiano Michieletto, known for directing Rossini's operas, recently staged Schreker's Der ferne Klang at the Oper Frankfurt, where the world premiere had been performed in 1912?
- ... that a three-story structure in Beatrice, Nebraska, was built for a Schmuck?
15 July 2019
- 00:00, 15 July 2019 (UTC)
- ... that the samples of Le Nove porcelain (example pictured), sent to the Venetian government in 1762 to support a licence application, may actually have been made by another factory?
- ... that Palestinians in the Sabra and Shatila refugee camps in Beirut called American journalist Janet Lee Stevens "the little drummer girl" because of her staunch support for their cause?
- ... that Back to Black, the final studio album by Amy Winehouse, topped the European Top 100 Albums chart for 13 non-consecutive weeks?
- ... that Australian rules footballer Emerson Woods was a premiership player in the VFL Women's while still in secondary school?
- ... that the cave-nesting rockwarbler has also been called the "hanging dick" because of its nest?
- ... that lieutenant commander James J. Connell's Navy Cross was the highest award for valor bestowed on a Delawarean during the Vietnam War?
- ... that César Franck composed Psalm 150, a setting of "the musicians' psalm", for choir, orchestra, and organ, for a school for the blind in Paris?
- ... that Charles Stapley played 26 different roles in The Adventures of Robin Hood?
14 July 2019
- 00:00, 14 July 2019 (UTC)
- ... that as a condition of a bequest from James Cowan Smith, the Scottish National Gallery must permanently display a portrait of his dog Callum (pictured)?
- ... that after the crash of Paradise Airlines Flight 901A, the Federal Aviation Administration permanently grounded the airline's operations?
- ... that in 1953, Satyawati Suleiman became the first woman to receive a degree in archaeology from the University of Indonesia?
- ... that Armenian pianist Tigran Hamasyan believes that God intervened in the recording of his album Luys i Luso?
- ... that Abby Dunkin was one of three University of Texas at Arlington players selected as members of the All Star Five at the 2019 Women's U25 Wheelchair Basketball World Championship?
- ... that the 2003 edition of the 24 Hours of Le Mans featured the first renewable-fuelled sports prototype racing car to be entered in a Le Mans event?
- ... that English librarian Frank Cundall created the West India Reference Library in 1894, which later became the nucleus of the National Library of Jamaica?
- ... that some supporters of US president Franklin Roosevelt called for him to assume dictatorial powers in 1933?
13 July 2019
- 00:00, 13 July 2019 (UTC)
- ... that Elizabeth L. Gardner served as a WASP during World War II and was the subject of a well-known photo (pictured)?
- ... that the Arab Serai, a 16th-century roadside inn in Delhi, may have been built to shelter 300 Arab mullahs who accompanied the Mughal emperor's widow on her Hajj to Mecca?
- ... that Isao Kataoka is the only Japanese recipient of the Paul Loicq Award for contributions to international ice hockey?
- ... that de novo gene birth was once thought to be impossible but has now been observed in every species that has been systematically examined?
- ... that Maria Howard Weeden painted many portraits of African-American freedmen and freedwomen?
- ... that the Suvorov Monument, now on Suvorov Square, depicts its subject as the god Mars?
- ... that Bohumil Herlischka staged Schoenberg's Moses und Aron at the Hamburg State Opera, including a tour to Israel?
- ... that in two species of megabat, males have been observed to produce milk?
12 July 2019
- 00:00, 12 July 2019 (UTC)
- ... that Portland's MAX Blue Line (train pictured) was built as a result of freeway revolts in the 1970s?
- ... that Pema Dhondup studied filmmaking at the University of Southern California so he could use the medium to tell the story of his "lost generation" of Tibetan youth?
- ... that endometriosis, a condition in which tissue from the womb occurs in unusual locations, can cause bleeding into the chest during menstrual periods?
- ... that Liu Housheng co-founded the Plum Blossom Award, the highest award for Chinese opera?
- ... that a clay tablet at the National Museum of Iraq, dated to c. 1770 BCE, shows a calculation that uses the Pythagorean theorem—twelve centuries prior to the birth of Pythagoras?
- ... that Gustave A. Mueller of the Homeopathic Hospital of Pittsburgh was described in his 1912 obituary as a leading specialist in the treatment of the eye, ear, nose, and throat?
- ... that flyways used by migrating wetland birds have traditional staging points where they can rebuild their energy reserves?
- ... that French-born Joe Bertony, who twice escaped from Nazi concentration camps, played a key part in the construction of the Sydney Opera House?
11 July 2019
- 00:00, 11 July 2019 (UTC)
- ... that New Zealand-born singer Rosé (pictured) initially thought her father's suggestion that she audition to become a K-pop star was a joke, as the family lived in Australia?
- ... that the West Indian Incumbered Estates Acts were modelled on legislation introduced after the Irish Great Famine?
- ... that Tatsuo Nomura's "Pokémon Challenge" for Google Maps, created as an April Fools' Day prank for mobile phone users, led to the development of Pokémon Go?
- ... that although living on the same mountain, the Mount Oku rat is endangered by habitat destruction, while the Mittendorf's striped grass mouse is not?
- ... that the Kinetest, a women's ski trail at the Grovatesten ski field in Meråker, is named after the Norwegian cross-country skier Kine Beate Bjørnås?
- ... that the editing style of Every Frame a Painting was formulated to avoid copyright claims from YouTube's Content ID system?
- ... that researcher Leslie Leve has found that parents' depression is associated with an increased likelihood of behavioral problems in their children?
- ... that the Brahma Temple of Khajuraho is actually dedicated to Shiva?
10 July 2019
- 00:00, 10 July 2019 (UTC)
- ... that Hypericum olympicum (pictured), an Award of Garden Merit winner, is toxic to dogs, cats, and horses?
- ... that Isabelle Story, a member of Eleanor Roosevelt's press corps, published a weekly column called "Chatting With The First Lady"?
- ... that Newcastle Falcons were relegated to play in the 2019–20 RFU Championship after the RFU rejected a plan to expand Premiership Rugby?
- ... that Wang Xiji, chief designer of China's first space launch vehicle and recoverable satellites, advocated the construction of a solar power station 36,000 km (22,000 mi) above Earth?
- ... that abnormal structures inside white blood cells called critical green inclusions can indicate impending death?
- ... that after leaving Nauvoo, Illinois, John Lyman Smith traveled with the Mormon pioneers in 1847 to the Salt Lake Valley, where he became a Utah Territory politician?
- ... that the Occupation of Ma'an has been called "one of the most confused chapters" of Jordan's history?
- ... that pool player David Alcaide became the Spanish national eight-ball champion at age 14?
9 July 2019
- 00:00, 9 July 2019 (UTC)
- ... that Australian Army major Peter Badcoe (pictured) was posthumously awarded the Victoria Cross for displaying "conspicuous gallantry and leadership" on three occasions?
- ... that the earliest evidence of sheep herding has been found in northern Iraq, dated before 9000 BC?
- ... that Tang Dingyuan co-invented the "split-diamond bomb"?
- ... that Bolivia sued Chile in 2013 to regain land lost in 1884, claiming it had an Obligation to Negotiate Access to the Pacific Ocean?
- ... that Joanne Berger-Sweeney is the first African-American and first woman to serve as president of Trinity College, Connecticut?
- ... that the Benedictines of Murbach Abbey built the monumental Notre-Dame de Guebwiller in order to relocate from their remote valley?
- ... that operatic bass Kieth Engen, who got his first role, Bluebeard, at the Bavarian State Opera because he was tall, also had a pop career under a pseudonym?
- ... that The California Field Atlas by Obi Kaufmann is neither a field guide nor a conventional atlas?
8 July 2019
- 00:00, 8 July 2019 (UTC)
- ... that Germany defeated Sweden in the 2003 FIFA Women's World Cup Final (pictured) with a golden goal, the last time this method of deciding the final was approved?
- ... that Liu Xianjue spent three years researching the book The Architectural Heritage in Macau, which was submitted in the city's successful application for World Heritage status?
- ... that the Missa brevis for choir a cappella is one of about 300 choral compositions by Knut Nystedt?
- ... that Florrie Redford played football with other women during her lunch break at a World War I munitions factory prior to becoming a leading goal scorer for Dick, Kerr Ladies F.C.?
- ... that the WTC Cortlandt subway station in New York City, closed for 17 years after the September 11 attacks, cost $181 million to rebuild?
- ... that Im Eun-ju was the first South Korean woman to referee at the international level of association football?
- ... that among the wetland animals in Kainji National Park are two species of crocodile, four of turtle, the African manatee, the hippopotamus, and the clawless otter?
- ... that William Feiner became the president of Georgetown College in 1826 despite having never mastered English?
7 July 2019
- 00:00, 7 July 2019 (UTC)
- ... that James H. Stark, author of six guidebooks to the British West Indies and Bermuda (pictured), was described as a "modern Hakluyt"?
- ... that the dome of Santa Maria di Collemaggio collapsed in the 1461 L'Aquila earthquake?
- ... that Tsunekazu Ishihara was nicknamed "The King of Portable Toys" by coworkers during the development of Pokémon Red and Green?
- ... that the repeated question "Warum?" ('Why?') from the Book of Job structures the first of Two Motets, Op. 74, by Johannes Brahms?
- ... that wheelchair basketball player Teisha Shadwell raised money for a custom-built chair on GoFundMe?
- ... that HMS Imperieuse once sailed under an American flag?
- ... that Aziz Abu Sarah, a peace activist from East Jerusalem and promoter of Arab–Israeli peace projects, neither understood Hebrew nor knew any Israeli Jews until after leaving high school?
- ... that an artificial intelligence wrote a novel in the spirit of Jack Kerouac's On the Road?
6 July 2019
- 00:00, 6 July 2019 (UTC)
- ... that Ali Eisami (pictured), a Kanuri man, dictated his memoirs of his captivity to German missionary and linguist Sigismund Koelle, and helped him produce a Kanuri grammar?
- ... that the wildlife of Nigeria includes 940 species of bird and all eight known species of West African mangrove?
- ... that Stepan Pimenov's sculptures for the Admiralty building in St. Petersburg were removed and destroyed by order of Emperor Alexander II?
- ... that Werner Egk wrote the libretto for Irische Legende, his first opera after World War II, based on The Countess Cathleen by W. B. Yeats?
- ... that the designs on opon Ifá divination trays praise and acknowledge the work of the babalawo?
- ... that the Leagues Cup, an upcoming four-team soccer competition between MLS and Liga MX clubs, was panned by critics as soon as it was announced?
- ... that Maria Hueber founded the first school for girls in the Tyrol region?
- ... that a five-star Amazon review of Facebook Portal by a writer, who claimed not to be a "big" Facebook user before buying the device, was traced to a Facebook employee?
5 July 2019
- 00:00, 5 July 2019 (UTC)
- ... that Tito's Tacos of Culver City, California, has sold the same hard-shell tacos (pictured) filled with shredded beef, iceberg lettuce, and grated cheddar cheese for 60 years?
- ... that the Tarzan of Manisa planted thousands of trees on Mount Sipylus in Turkey?
- ... that the creation of the Swedish Levant Company in 1738 was controversial because of a disagreement between several Swedish merchants and the Hat Party?
- ... that Eddie Gallagher, a Navy SEAL who had been accused of murder, was transferred to "less restrictive confinement" by direct presidential intervention, the first such transfer since William Calley's in 1971?
- ... that the historic French trick-taking card game of la Bête has its origins in 16th-century Spanish Ombre, and was created by introducing the concept of bidding into Triomphe?
- ... that Maddie Shevlin dislocated her thumb on debut in her first season of Australian rules football and missed the next ten weeks?
- ... that the United States embassy in Nicosia, Cyprus, was bombed while Fraser Wilkins was serving as the first US ambassador to Cyprus?
- ... that this article is a load of old cobblers?
4 July 2019
- 00:00, 4 July 2019 (UTC)
- ... that the free-living, solitary coral Cycloseris distorta (pictured) can subdivide its stony skeleton and form two new individuals?
- ... that when Joseph Wood was appointed as head master of Harrow School, he was by far the oldest to be appointed since the retirement of Thomas Thackeray in 1760?
- ... that composers Alexander Borodin, Mikhail Glinka, Modest Mussorgsky, Nikolai Rimsky-Korsakov and Pyotr Ilyich Tchaikovsky are all buried in the Tikhvin Cemetery?
- ... that the Touristic Eastern Express makes two-hour-long stops between Ankara and Kars to allow passengers to visit historic and natural attractions?
- ... that the German soprano Melanie Diener began her stage career in Mozart roles in 1996, and appeared as Isolde with the Canadian Opera Company and the Opéra national du Rhin in 2013?
- ... that after discontinuing normal programming, KPPC radio signed on once a week for six months to fulfill a contract to broadcast church services?
- ... that Qian Ji helped design China's first satellite and was the lead designer for its first three-in-one satellite launch?
- ... that the Mueller probe was born in a crossfire hurricane?
3 July 2019
- 00:00, 3 July 2019 (UTC)
- ... that a new personification was developed for the Americas (example pictured) after their discovery by Europeans?
- ... that in 2018, Lorraine Janzen Kooistra was elected a fellow of the Royal Society of Canada for her work in 19th-century literature?
- ... that the weight of the volcanoes of Hawaii is causing Earth's crust to buckle, generating volcanoes under the sea?
- ... that Turkish women's footballer Aslı Canan Sabırlı was appointed technical director of her team while she was still a member of the squad?
- ... that the 1929 Hugh Ferriss book The Metropolis of Tomorrow featured "projected trends" including skyscraper churches and suspension bridges with apartments built into them?
- ... that Charles S. Bryan and Bill Stone worked out how to avoid toxic doses of penicillin in people with kidney failure?
- ... that the bodies of 499 gold miners bound for China were lost when the SS Ventnor sank in 1902?
- ... that Alexandra Phillips and Alexandra Phillips stood against each other for election in South East England, and both were elected?
2 July 2019
- 00:00, 2 July 2019 (UTC)
- ... that poutine (example pictured) and back bacon on a bun were served while the Beaver was awarded to Made in Canada at the inaugural Canadian Comedy Awards?
- ... that the FM Non-Duplication Rule adopted by the FCC 55 years ago today led to the creation of the album-oriented and classic rock radio formats?
- ... that 11th-century scholar Ahmad ibn Ibrahim al-Naysaburi, an authority on the early history of Isma'ilism, composed the first official genealogy of the Fatimid dynasty?
- ... that the WWE 24/7 Championship, a professional wrestling championship, can be defended anytime, anywhere, as long as a WWE referee is present?
- ... that Women and Politics in Canada by Janine Brodie was the first book to study Canadian women in political campaigns between 1945 and 1975?
- ... that John Casken's opera Golem won the 1991 Gramophone Classical Music Award for Best Contemporary Recording?
- ... that before his accession to the Scottish Parliament in 2016, Bill Bowman lived and worked for more than a decade in Bucharest?
- ... that the 1458 Loveday, which was intended to unite Henry VI's nobility, only resulted in uniting his enemies?
1 July 2019
- 00:00, 1 July 2019 (UTC)
- ... that after retirement from NASA, astronaut Frank Borman (pictured) became a special advisor to Eastern Air Lines, and helped rescue survivors of the Eastern Air Lines Flight 401 crash near Florida's Everglades?
- ... that for his opera Stephen Climax, composer Hans Zender wrote a libretto which juxtaposes the life of Simeon Stylites with scenes from Ulysses by James Joyce?
- ... that Dutch pool player Nick van den Berg has competed in the Mosconi Cup eight times and lost only once, in the 2003 event?
- ... that according to motivation crowding theory, adding incentives for some behavior can sometimes backfire and actually result in less of that behavior?
- ... that Wei Shoukun, the longest-lived academician of the Chinese Academy of Sciences, taught at 10 universities over his 80-year career?
- ... that the wildlife of Senegal includes a critically endangered subspecies of the giant eland and the common Senegal one-striped grass mouse?
- ... that despite being parodied on World Wrestling Federation TV as "Billionaire Ted", World Championship Wrestling owner Ted Turner reportedly found the sketches funny?
- ... that Edward McGeachy took a butler with him when he surveyed Fort Stewart Estate in colonial Jamaica?