copenlu/tydiqa_copenlu huggingface dataset:
Gravel and Tar

Gravel and Tar is a one-day cycling race held annually in New Zealand since 2016. It is rated 1.2 and has been part of UCI Oceania Tour since 2018.[1]

Question: What's tar gravel?

President of Afghanistan

The President of the Islamic Republic of Afghanistan is the head of state and head of government of Afghanistan. The incumbent office holder is Ashraf Ghani. 

Question: Who is the president of Afghanistan?

Escapement

The lever escapement, invented by Thomas Mudge in 1750, has been used in the vast majority of watches since the 19th century.  Its advantages are (1) it is a "detached" escapement; unlike the cylinder or duplex escapements the balance wheel is only in contact with the lever during the short impulse period when it swings through its centre position and swings freely the rest of its cycle, increasing accuracy, and (2) it is a self-starting escapement, so if the watch is shaken so that the balance wheel stops, it will automatically start again.  The original form was the rack lever escapement, in which the lever and the balance wheel were always in contact via a gear rack on the lever. Later, it was realized that all the teeth from the gears could be removed except one, and this created the detached lever escapement.  British watchmakers used the English detached lever, in which the lever was at right angles to the balance wheel.  Later Swiss and American manufacturers used the inline lever, in which the lever is inline between the balance wheel and the escape wheel; this is the form used in modern watches.  In 1867 Georges Frederic Roskopf invented an inexpensive, less accurate form called the Roskopf or pin-pallet escapement, which was used in cheap "dollar watches" in the early 20th century and is still used in cheap alarm clocks and kitchen timers.

Question: Who developed the first escapement mechanism for watches and clocks?

Twenty-second Amendment to the United States Constitution

The Twenty-second Amendment (Amendment XXII) to the United States Constitution sets a limit on the number of times an individual is eligible for election to the office of President of the United States, and also sets additional eligibility conditions for presidents who succeed to the unexpired terms of their predecessors.[1]

Question: Which amendment controls presidency terms?

Chesapeake and Ohio Railway

The Chesapeake and Ohio Railway (reporting marks C&O, CO) was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P. Huntington, it reached from Virginia's capital city of Richmond to the Ohio River by 1873, where the railroad town (and later city) of Huntington, West Virginia was named for him.

Question: When was the Chesapeake and Ohio Railway formed?
American Sign Language

ASL emerged as a language in the American School for the Deaf (ASD), founded in 1817.[7]:7 This school brought together Old French Sign Language, various village sign languages, and home sign systems; ASL was created in this situation of language contact.[8]:11[nb 1] ASL was influenced by its forerunners but distinct from all of them.[7]:7

Question: When did American Sign Language develop?

Earth's circumference

Earth's circumference is the distance around the Earth, either around the equator (40,075.017km [24,901.461mi][1]) or around the poles (40,007.86km [24,859.73mi][2]).

Question: What is the circumference of the planet Earth?

Nintendo DS family

Throughout its lifetime, Sony's PlayStation Portable has been the main market competitor. There have been four different models of the Nintendo DS line on the market: the original Nintendo DS, the Nintendo DS Lite, as well as the Nintendo DSi and its XL variant. The Nintendo DS line has been highly successful, continuing the trend of its predecessor, the Game Boy line. With over 154 million units sold worldwide, the DS models are the best-selling handheld consoles, and second best-selling console overall behind the PlayStation 2. 

Question: How many iterations of the DS have been released?

Fontevraud-l'Abbaye

Population (1999): 1,189
Area: 1,482 ha
Average altitude: 80 m

Question: What is the population of Fontevraud-l'Abbaye?

Latin

Latin was originally spoken in the area around Rome, known as Latium.[4] Through the power of the Roman Republic, it became the dominant language, initially in Italy and subsequently throughout the western Roman Empire. Vulgar Latin developed into the Romance languages, such as Italian, Portuguese, Spanish, French, and Romanian. Latin, Greek, and French have contributed many words to the English language. In particular, Latin and Ancient Greek roots are used in English descriptions of theology, biology, science, medicine, and law.

Question: Where was Latin spoken?

Lake Country

Lake Country is a district municipality with a population of approximately 13,000 in the Okanagan Valley region of British Columbia, Canada. It is a part of the Central Okanagan Regional District, and of the Kelowna metropolitan area. The city of Kelowna lies to the south, while the city of Vernon lies to the north. As its name suggests, there are a number of lakes in the vicinity of Lake Country, and outside the municipal boundaries in the hills to the east. Okanagan Lake defines the western boundary of the municipality, while the entirety of Wood Lake and the southernmost portion of Kalamalka Lake are encompassed by it.

Question: Where is Lake Country?
Willie Soon

Willie Soon was born in Kangar, Malaysia, in 1966. He attended Khoon Aik Primary School in Kangar, Perlis, then Sekolah Menengah Syed Sirajudin Secondary School in Jejawi, Perlis, and Sekolah Menengah Dato Sheikh Ahmad Secondary School in Arau, Perlis.[1] To further his education he emigrated to the United States in 1980 and attended the University of Southern California, receiving a B.Sc. in 1985, followed by a M.Sc. in 1987 and then a Ph.D. in Aerospace Engineering [with distinction] in 1991.[10][11]  His doctoral thesis was titled Non-equilibrium kinetics in high-temperature gases.[12] He received the IEEE Nuclear and Plasma Sciences Society Graduate Scholastic Award in 1989 and the Rockwell Dennis Hunt Scholastic Award from the University of Southern California in 1991.[13]

Question: Where was Willie Soon born?

Battle of Gettysburg

The Battle of Gettysburg (locally /ˈɡɛtɪsbɜːrɡ/(listen))[11] was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point.[12][13] Union Maj. Gen. George Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North.

Question: What was the most important battle in the Civil War?

Sawfish

Sawfish are predators that feed on fish, crustaceans and molluscs.[2] Old stories of sawfish attacking large prey such as whales and dolphins by cutting out pieces of flesh are now considered to be myths and not factual.[1][59] Humans are also far too large to be considered potential prey.[71]

Question: What do sawfishes eat?

1790 United States Census

The United States Census of 1790 was the first census of the whole United States. It recorded the population of the United States as of Census Day, August 2, 1790, as mandated by Article I, Section 2 of the United States Constitution and applicable laws. In the first census, the population of the United States was enumerated to be 3,929,214.[1]

Question: When was the first census given in the US?

Demographics of Paris

The city of Paris (also called the Commune or Department of Paris) had a population of 2,241,346 people within its administrative city limits as of January 1, 2014.[1]  It is surrounded by the Paris unité urbaine, or urban area, the most populous urban area in the European Union.  In 2011 the unité urbaine had a population of 10,516,110.[2] The Paris Region, or Île-de-France covers 12,012 square kilometers (4,638 square miles), and has its own regional council and president. It has a population of 12,005,077 as of January 2014, or 18.2 percent of the population of France.[3]

Question: How many people live in Paris?
Interstate 97

Interstate 97 (I-97) is a part of the Interstate Highway System that runs entirely within Anne Arundel County, Maryland. The intrastate Interstate runs 17.62 miles (28.36km) from U.S. Route 50 (US50) and US 301 in Parole near Annapolis north to I-695 and I-895 in Brooklyn Park near Baltimore. The Interstate is the primary highway between Baltimore and Annapolis. I‑97 connects Annapolis with Baltimore–Washington International Airport and links the northern Anne Arundel County communities of Crownsville, Millersville, Severna Park, Glen Burnie, and Ferndale.  It is the shortest primary Interstate Highway.

Question: How big is Interstate 97?

Kubo and the Two Strings

The film screened at the Melbourne International Film Festival on August 13, 2016,[8] and was theatrically released in the United States on August 19, 2016.[9]

Question: What year did Kubo The Two Strings come out?

Sound recording and reproduction

The first practical sound recording and reproduction device was the mechanical phonograph cylinder, invented by Thomas Edison in 1877 and patented in 1878.[9][10] The invention soon spread across the globe and over the next two decades the commercial recording, distribution, and sale of sound recordings became a growing new international industry, with the most popular titles selling millions of units by the early 1900s. The development of mass-production techniques enabled cylinder recordings to become a major new consumer item in industrial countries and the cylinder was the main consumer format from the late 1880s until around 1910.

Question: What was the earliest audio recording device?

Beer style

Pale lagers are the most commonly consumed type of beer in the world. Lagers are of Central European origin, taking their name from the German lagern ("to store"), and normally use a bottom-fermenting yeast which begin fermenting at 7–12°C (45–54°F) (the "fermentation phase"), and then stored at 0–4°C (32–39°F) (the "lagering phase"). During the secondary stage, the lager clears and mellows. The cooler conditions also inhibit the natural production of esters and other byproducts, resulting in a "crisper" tasting beer.

Question: What is the most common type of beer?

World population

The Han Chinese are the world's largest single ethnic group, constituting over 19% of the global population in 2011.[80] The world's most-spoken first languages are Mandarin Chinese (spoken by 12.44% of the world's population), Spanish (4.85%), English (4.83%), Arabic (3.25%) and Hindustani (2.68%).[71] The world's largest religion is Christianity, whose adherents account for 31% of the global population; Islam is the second-largest religion, accounting for 24.1%, and Hinduism the third, accounting for 13.78%.[71] In 2005, around 16% of the global population were reported to be non-religious.[81]

Question: What percentage of the world is Chinese?
Smilodon

Smilodon is a genus of the extinct machairodont subfamily of the felids. It is one of the most famous prehistoric mammals, and the best known saber-toothed cat. Although commonly known as the saber-toothed tiger, it was not closely related to the tiger or other modern cats. Smilodon lived in the Americas during the Pleistocene epoch (2.5 mya–10,000 years ago). The genus was named in 1842, based on fossils from Brazil. Three species are recognized today: S.gracilis, S.fatalis, and S.populator. The two latter species were probably descended from S.gracilis, which itself probably evolved from Megantereon. The hundreds of individuals obtained from the La Brea Tar Pits in Los Angeles constitute the largest collection of Smilodon fossils.

Question: When did the Smilodon live?

Sábado Gigante

Sábado Gigante (English translation: "Giant Saturday" or "Gigantic Saturday"; known officially as Sábado Gigante Internacional outside Chile) was a Spanish-language television program broadcast by Spanish International Network in the United States. It was also Univision's longest-running program and the longest-running television variety series in history.[2] Sábado Gigante is an eclectic and frenetic mix of various contests, human-interest stories, and live entertainment. From its start in 1962, it was hosted by Chilean TV star Mario Kreutzberger under the stage name of Don Francisco. Rolando Barral began serving as a co-host in 1986; that role was taken over by Javier Romero in 1991.

Question: When did Sábado Gigante first air?

Nobel Memorial Prize in Economic Sciences

Laureates in the Memorial Prize in Economics are selected by the Royal Swedish Academy of Sciences.[12][13] It was first awarded in 1969 to the Dutch and Norwegian economists Jan Tinbergen and Ragnar Frisch, "for having developed and applied dynamic models for the analysis of economic processes".[9][14][15]

Question: Who won the first Nobel prize for economics?

Halley's Comet

Halley's Comet or Comet Halley, officially designated 1P/Halley,[1] is a short-period comet visible from Earth every 75–76 years.[1][10][11][12] Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime.[13] Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.[14]

Question: How often is Halley's Comet visible?
National symbols of Portugal

The Quercus suber, commonly called the cork oak, is a medium-sized, evergreen oak tree in the section Quercus sect. Cerris. Traditionally, it is the primary source of cork for wine bottle stoppers, as well as for other uses, such as cork flooring. Cork is now used in a number of untraditional applications like shoes, cloths, fashion accessories, construction, sports equipment and even in space ships components. The quercus suber holds great importance in the economy of Portugal, especially the southern regions, the country being the largest producer of cork. In December 2011, after a petition signed by thousands of persons, the Quercus suber was declared national tree by the Portuguese Parliament.[8]
The Galo de Barcelos (Rooster of Barcelos) is one of the most common emblems of Portugal. These pieces of craftsmanship, made in painted clay in the city of Barcelos celebrate an old legend that tells the story of a dead rooster's miraculous intervention in proving the innocence of a man who had been falsely accused and sentenced to death.[9]
The wyvern was used as the crest of the Royal Arms of Portugal since the 15th century. Later, two dragons were also used as supports of the Arms of Portugal. Until the 17th century, the dragon was represented in gold, but from then on it became usually represented in green, probably because green was the national color of the Kingdom during the early reigning of the House of Braganza. Presently, among the common Portuguese, the dragon is usually associated as the mascot of the FC Porto football club, due to the fact that the emblem of this club includes the old coat of arms of the city of Oporto, which had the Royal dragon as a crest, granted to it as an augmentation of honor in 1837.

Question: What is Portugal's National bird?

Opera house

The first public opera house was the Teatro San Cassiano in Venice, opened in 1637. Italy is a country where opera has been popular through the centuries among ordinary people as well as wealthy patrons and it continues to have a large number of working opera houses[1] such as Teatro Massimo in Palermo (the biggest in Italy), Teatro di San Carlo in Naples (the world's oldest working opera house) and Teatro La Scala in Milan. In contrast, there was no opera house in London when Henry Purcell was composing and the first opera house in Germany was built in Hamburg in 1678.

Question: What is the oldest surviving opera house?

Kübler-Ross model

The Kübler-Ross model is popularly known as the five stages of grief, though more accurately, the model postulates a progression of emotional states experienced by terminally ill patients after diagnosis. The five stages are chronologically: denial, anger, bargaining, depression and acceptance.

Question: Who came up with the five stages of grief?
Christina, Queen of Sweden

Christina (18 December 1626 – 19 April 1689), the only surviving legitimate child of King Gustav II Adolph and his wife Maria Eleonora of Brandenburg, reigned as Queen of Sweden [note 1] from 1632 until her abdication in 1654.[7] At the age of six,[8] Christina succeeded her father  upon his death at the Battle of Lützen, but began ruling the Swedish Empire when she reached the age of 18 in 1644.

Question: Who was the last Queen of Sweden?

King County, Washington

According to the U.S. Census Bureau, the county has a total area of 2,307 square miles (5,980km2), of which 2,116 square miles (5,480km2) is land and 191 square miles (490km2) (8.3%) is water.[16] King County has nearly twice the land area of the state of Rhode Island. The highest point in the county is Mount Daniel at 7,959 feet (2,426 meters) above sea level.

Question: How large is King County, Washington?

Sergeant Stubby

Sergeant Stubby (1916 – March 16, 1926) was a dog who is the official mascot of the 102nd Infantry Regiment (United States) and was assigned to the 26th (Yankee) Division in World War I. He served for 18 months and participated in seventeen battles on the Western Front. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and once caught a German soldier by the seat of his pants, holding him there until American soldiers found him. His actions were well-documented in contemporary American newspapers.[2][3][4]

Question: When did Sgt. Stumpy serve?

Chinese Australians

Chinese Australians (traditional Chinese:華裔澳洲人; simplified Chinese:华裔澳洲人; pinyin:Huáyì àozhōu rén; Cantonese Yale:wàyeuih oujāu yàn) are Australian citizens of Chinese ancestry. Chinese Australians are one of the largest groups of Overseas Chinese people, forming the largest Overseas Chinese community in Oceania. Per capita, Australia has more people of Chinese ancestry than any country outside Asia. Many Chinese Australians have immigrated from Mainland China, Hong Kong, Macau, Taiwan, and other countries such as Indonesia,  Malaysia,  Singapore and the  Philippines, while many are descendants of such immigrants. Chinese Australians are also a subgroup of Asian Australians and East Asian Australians and represent the single largest minority ethnicity in the country. As a whole, Australian residents identifying themselves as having Chinese ancestry made up 5.6% of those nominating their ancestry at the 2016 census[2] and numbered 1,213,903.[1]

Question: How big is the Chinese diaspora in Australia?
Sound film

The primary steps in the commercialization of sound cinema were taken in the mid- to late 1920s. At first, the sound films which included synchronized dialogue, known as "talking pictures", or "talkies", were exclusively shorts. The earliest feature-length movies with recorded sound included only music and effects. The first feature film originally presented as a talkie was The Jazz Singer, released in October 1927. A major hit, it was made with Vitaphone, which was at the time the leading brand of sound-on-disc technology. Sound-on-film, however, would soon become the standard for talking pictures.

Question: When was sound introduced to film?

Ferdinand II, Holy Roman Emperor

Ferdinand II (9 July 1578 – 15 February 1637), a member of the House of Habsburg, was Holy Roman Emperor (1619–1637), King of Bohemia (1617–1619, 1620–1637), and King of Hungary (1618–1637). He was the son of Archduke Charles II of Inner Austria, and Maria of Bavaria. In 1590, his parents, who were devout Catholics, sent him to study at the Jesuits' college in Ingolstadt, because they wanted to isolate him from the Lutheran nobles. In the same year, he inherited Inner Austria—Styria, Carinthia, Carniola and smaller provinces—from his father. Rudolph II, Holy Roman Emperor, who was the head of the Habsburg family, appointed regents to administer Inner Austria on behalf of the minor Ferdinand.

Question: When did Ferdinand II die?

Sistine Chapel ceiling

The Sistine Chapel ceiling, painted by Michelangelo between 1508 and 1512, is a cornerstone work of High Renaissance art.

Question: Who painted the Basilica?

Chewing gum

Chewing gum in many forms has existed since the Neolithic period. 6,000-year-old chewing gum made from birch bark tar, with tooth imprints, has been found in Kierikki in Finland. The tar from which the gums were made is believed to have antiseptic properties and other medicinal benefits.[4] It is chemically similar to petroleum tar and is in this way different from most other early gum.[5][6] The Mayans and Aztecs were the first to exploit the positive properties of gum,[7] they used chicle, a natural tree gum, as a base for making a gum-like substance[8] and to stick objects together in everyday use. Forms of chewing gums were also chewed in Ancient Greece. The Ancient Greeks chewed mastic gum, made from the resin of the mastic tree.[9] Mastic gum, like birch bark tar, has antiseptic properties and is believed to have been used to maintain oral health.[10] Both chicle and mastic are tree resins. Many other cultures have chewed gum-like substances made from plants, grasses, and resins.

Question: What did chewing gum used to be made out of?