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.

30 June 2004

• ...that the Communist League of America was formed after some members of the Communist Party USA were expelled for Trotskyism?
• ...that Polish Communists forbade the use of Wymysojer shortly after World War II, and now only about 100 native speakers remain?
• ...that a 1939 conflict between Soviet and Japanese troops in the village of Nomonhan is thought to have led to the attack on Pearl Harbor?
• ...that California's Owens River has been entirely diverted for irrigation and drinking water?

28 June 2004

• ...that the Vietnam Women's Memorial is a memorial dedicated to the women who served in the Vietnam War?
• ...that there are many uses for trigonometry?
• ...that Dudley Pope wrote many of his books aboard a 54-foot wooden yacht?
• ...that the tallest structure in California is a television antenna tower, while in Arizona it is a chimney?

25 June 2004

• ...that in his later years Dick Dastardly was often Yogi Bear's nemesis?
• ...that the Snellen chart is used to measure visual acuity?
• ...that a wrecking amendment is added to legislation in bad faith?

• ...that the Almanach de Gotha is a directory of European nobility first published in 1763?

24 June 2004

• ...that the Honolulu Police Department became a deputized military force during World War II?
• ...that a kammback is an aerodynamic drag-reducing car body style?
• ...that both Cliff and Nina and Greg and Jenny are considered supercouples?
• ...that while Tom Foley was the Speaker of the United States House of Representatives, he was not re-elected by his constituents?

23 June 2004

• ...that the California Gull is the state bird of Utah?
• ...that the flags of the Yugoslav Socialist Republics were the old flags of the constituent nations, with a red star added to represent communism?
• ...that the United States Mint produced a half dime coin from 1792 until 1873?
• ...that the edge of space is about 100 kilometers above mean sea level?

22 June 2004

• ...that the Pitstone Windmill in Buckinghamshire is believed to be the oldest windmill in the British Isles?

20 June 2004

• ...that American feminist magazine Ms. has not carried advertisements since 1989?
• ...that the Brown Dog affair, a Edwardian era vivisection controversy, led to massive riots?
• ...that the ideal cellular network has evenly distributed hexagonal cells?
• ...that the Third Taiwan Strait Crisis was sparked by a visit to Cornell by Lee Teng-hui?

19 June 2004

• ...that king Naresuan ruled Thailand at its greatest territorial extent?

18 June 2004

• ...that the Union Pacific Railroad still has offices in the historic Salt Lake City Union Pacific Depot?
• ...that the Iliad and the Odyssey were just two parts of the eight-part Trojan War cycle of epic poems?
• ...that automatic differentiation is a method for evaluating the derivative of a function at a given point?
• ...that in Canada there were once eight districts of the Northwest Territories?
• ...that Occidental Petroleum head Armand Hammer bought into Church and Dwight in order to hold a stake in their Arm and Hammer baking soda trademark, apparently finding humor in the coincidence of their names?

• ...that Hurricane Audrey, which killed 390 in Louisiana in 1957, was one of the first hurricanes observed by weather radar?
• ...that in linguistics, the La Spezia-Rimini Line separates eastern Romance languages from the western Romance languages using isoglosses?
• ...that the dog called the Miniature Fox Terrier (or Mini Foxie) originated in Australia?
• ...that the Great Basin tribes of North America originated the Ghost Dance movement?
• ...that manscaping is the practice of men shaving their body hair?

15 June 2004

• ...that Jacaranda grows almost everywhere in the world that does not have frost?
• ... that Manscaping is the practice of a man shaving his body hair?
• ...that since the introduction of antivenin in 1956, only one person has died from the bite of the Australian red-back spider, a cousin of the black widow?
• ...that the 1922 Red Ruhr Army workers' revolt was a response to the Kapp Putsch?
• ...that the longest-running show in Broadway theater history was Cats with 7,485 performances?

14 June 2004

• ...that 12 died in the 1959 Knox Mine Disaster when the Susquehanna River crashed into a Pennsylvania anthracite coal mine?

• ...that the Royal Poinciana has been called the most colourful tree in the world?
• ...that Stonehenge is surrounded by 56 pits known as Aubrey holes?
• ...that Chicago's Lincoln Park was originally a cemetery?
• ...that the ventral stream makes up one half of the visual cortex?
• ...that postoperative nausea and vomiting is an unpleasant complication affecting about two million people in the United Kingdom annually?
• ...that devout Catholics believe in the Perpetual Virginity of Mary?

13 June 2004

• ...that the Sitka is the largest species of spruce tree?

12 June 2004

• ...that Chicago's Lincoln Park was originally a cemetery?

11 June 2004

• ...that residents of the old soldiers' home known as Royal Hospital Chelsea are called Chelsea pensioners?
• ...that the Outlawries Bill has been read in the British House of Commons nearly every year since 1727?
• ...that the U.S. Navy experienced its largest peacetime loss of ships in the 1923 Honda Point Disaster?
• ...that Japanese Imari porcelain was made specifically for export to Europe?
• ...that in Upper and Lower Canada, the colonial government used concession roads to define lots which were to be developed?

10 June 2004

• ...that the collections of the Chicago Public Library began with the 8,000-volume "English Book Donation" which came in response to the Great Chicago Fire of 1871?
• ...that the Chislehurst Caves of Kent are actually mines that were first worked in 1250?

9 June 2004

• ...that short leading men often stand on apple boxes to make themselves look taller on film?
• ...that a member of the Gelechiidae family of moths is used to control spotted knapweed?
• ...that the London Charter of the International Military Tribunal established the legal basis for the Nuremberg trials?
• ...that the Sacramento River Delta is an inverted river delta and that it once had an extensive system of cable ferries?

• ...that the singer Scott Walker produced an album for British band Pulp?

6 June 2004

• ...that the radio industry can be divided into public service, commercial and community radio?

4 June 2004

• ...that Azerbaijanis live in Iran, Georgia, Turkey, Iraq and the United States, as well as Azerbaijan?
• ...that there are 14 gases which are lighter than air?
• ...that the Barnburners supported Martin Van Buren in the U.S. presidential election of 1848?
• ...that in physics, a Landau pole is the energy scale where a coupling constant of a quantum field theory becomes infinite?

3 June 2004

• ...that the nectar of Yellow Jessamine causes brood death when gathered by honeybees?
• ...that the Humboldt River in Nevada is the longest river in the Great Basin and furnished the route of the Central Pacific segment of the transcontinental railroad?
• ...that the Trumpeter Swan is the largest swan native to North American?
• ...that Scandanavia's High North Alliance works to protect the whaling interests of member countries?

2 June 2004

• ...that the Brazil nut effect, a law of physics, dictates that when a mixture of granular material is shaken the biggest particles end up on the top?
• ...that 1943 Triple Crown winner Count Fleet was both sire of and sired by Kentucky Derby winners?
• ...that the music genre known as bouncy techno originated in Scotland?

• ...that the original orange-red Fiestaware dinnerware contained a substantial quantity of uranium?
• ...that visually impaired musicians can begin learning Music Braille once they are competent in grade-two level literary Braille?
• ...that the 1539 Ordinance of Villers-Cotterêts, which mandated the use of French in official documents, contributed to the rise of French nationalism?
• ...that the indigenous peoples of Brazil domesticated cassava?

• ...that the Oxford University Museum was the site of a major debate in evolutionary biology?
• ... that a " rain of fish" (a tornado that travels over the ocean, sucks up fish and then drops them over villages) is a common theme appearing in Honduran art - part of the culture of Honduras?
• ...that Charley Fox, a Canadian flight lieutenant, was credited with injuring Erwin Rommel?
• ...that body surface area is an important measure used in medicine to calculate chemotherapy dosage?

1 June 2004

• ... that a " rain of fish" (a tornado that travels over the ocean, sucks up fish and then drops them over villages) is a common theme appearing in Honduran art - part of the Culture of Honduras?
• ...that Body surface area is an important measure used in medicine to calculate chemotherapy dosage?