copenlu/tydiqa_copenlu huggingface dataset:
Radar in World War II

Germany has a long heritage of using electromagnetic waves for detecting objects. In 1888, Heinrich Hertz, who first demonstrated the existence of these waves, also noted that they, like light, were reflected by metal surfaces. In 1904, Christian Hülsmeyer obtained German and foreign patents for an apparatus, the Telemobilskop, using a spark gap transmitter that could detect ships and prevent collisions; this is often cited as the first radar, but, without directly providing range, it does not qualify for this classification. With the advent of the radio tube and electronics, other detection-only systems were developed, but all used continuous waves and could not measure distance.

Question: Who developed the first VHF-band radar system?

Keith M. Davidson

For the next two years Davidson worked in government, with the state legislature and later at the Plymouth County district attorney's office. He began applying to law schools, and was accepted at Whittier Law School in Costa Mesa, California. After moving cross-country to study there, he graduated in 2000 and was admitted to the California bar at the end of the year.[6]

Question: When did Keith M. Davidson become a lawyer?

NFL regular season

The National Football League (NFL) regular season begins on the weekend following the first Monday of September (i.e, the weekend following the Labor Day holiday) and ends in December or early January. It consists of 256 games, where each team (32 total) plays 16 games during a 17-week period. Since 2012, the NFL schedule generally has games in one of five time slots during the week. The first game of the week is played on Thursday night, kicking off at 8:20 PM (ET). The majority of games are played on Sunday, most kicking off at 1:00 PM (ET), some late afternoon games starting at 4:05 or 4:25 PM (ET). Additionally, one Sunday night game is played every week at 8:20 PM (ET). One Monday night game then starts at 8:15 PM (ET) every week with the exception of the first week of the regular season, in which two Monday night games are played back-to-back (the second game always occurring on the West coast), as well as the last week of the season, in which no Monday night game is held. In addition to these regularly scheduled games, there are occasionally games at other times, such as a Saturday afternoon or evening, or the annual Thanksgiving Day games in which three games are played. During the final week of the regular season, all games are held on Sunday.

Question: How many games does an NFL team play in a season?

FM broadcasting

VHF Radio waves do not travel far beyond the visual horizon, so reception distances for FM stations are usually limited to 30–40miles (50–65km) They can also be blocked by hills or buildings.

Question: How far can a radio station broadcast?

Babylon

The remains of the city are in present-day Hillah, Babil Governorate, Iraq, about 85 kilometres (53mi) south of Baghdad, comprising a large tell of broken mud-brick buildings and debris.

Question: Where was Babylon located in the world?
Water Music

The Water Music is a collection of orchestral movements, often published as three suites, composed by George Frideric Handel. It premiered on 17 July 1717, in response to  King George I's request for a concert on the River Thames.

Question: When did Handel write his Water Music Suite?

Carburetor

The first carburetor was invented by Samuel Morey in 1826. The first person to patent a carburetor for use in a petroleum engine was Siegfried Marcus with his 6 July 1872 patent for a device which mixes fuel with air.

Question: When was the first carburetor invented?

Atlantic Ocean

The oldest known mentions of an "Atlantic" sea come from Stesichorus around mid-sixth century BC (Sch. A. R. 1. 211):[6] Atlantikoi pelágei (Greek: Ἀτλαντικῷ πελάγει; English: 'the Atlantic sea'; etym. 'Sea of Atlantis') and in The Histories of Herodotus around 450 BC (Hdt. 1.202.4): Atlantis thalassa (Greek: Ἀτλαντὶς θάλασσα; English: 'Sea of Atlantis' or 'the Atlantis sea'[7]) where the name refers to "the sea beyond the pillars of Heracles" which is said to be part of the sea that surrounds all land.[8]  Thus, on one hand, the name refers to Atlas, the Titan in Greek mythology, who supported the heavens and who later appeared as a frontispiece in Medieval maps and also lent his name to modern atlases.[9]  On the other hand, to early Greek sailors and in Ancient Greek mythological literature such as the Iliad and the Odyssey, this all-encompassing ocean was instead known as Oceanus, the gigantic river that encircled the world; in contrast to the enclosed seas well known to the Greeks: the Mediterranean and the Black Sea.[10]
In contrast, the term "Atlantic" originally referred specifically to the Atlas Mountains in Morocco and the sea off the Strait of Gibraltar and the North African coast.[9] The Greek word thalassa has been reused by scientists for the huge Panthalassa ocean that surrounded the supercontinent Pangaea hundreds of millions of years ago.

Question: Why is it called the Atlantic Ocean?
Raphael

According to Vasari, his father placed him in the workshop of the Umbrian master Pietro Perugino as an apprentice "despite the tears of his mother". The evidence of an apprenticeship comes only from Vasari and another source,[14] and has been disputed—eight was very early for an apprenticeship to begin. An alternative theory is that he received at least some training from Timoteo Viti, who acted as court painter in Urbino from 1495.[15] Most modern historians agree that Raphael at least worked as an assistant to Perugino from around 1500; the influence of Perugino on Raphael's early work is very clear: "probably no other pupil of genius has ever absorbed so much of his master's teaching as Raphael did", according to Wölfflin.[16] Vasari wrote that it was impossible to distinguish between their hands at this period, but many modern art historians claim to do better and detect his hand in specific areas of works by Perugino or his workshop. Apart from stylistic closeness, their techniques are very similar as well, for example having paint applied thickly, using an oil varnish medium, in shadows and darker garments, but very thinly on flesh areas. An excess of resin in the varnish often causes cracking of areas of paint in the works of both masters.[17] The Perugino workshop was active in both Perugia and Florence, perhaps maintaining two permanent branches.[18] Raphael is described as a "master", that is to say fully trained, in December 1500.[19]

Question: Who was Raphael's teacher?

Wilhelm Wundt

Wilhelm Maximilian Wundt (/vʊnt/; German:[vʊnt]; 16 August 1832 – 31 August 1920) was a German physician, physiologist, philosopher, and professor, known today as one of the founding figures of modern psychology. Wundt, who noted psychology as a science apart from philosophy and biology, was the first person ever to call himself a psychologist.[2] He is widely regarded as the "father of experimental psychology".[3][4] In 1879, Wundt founded the first formal laboratory for psychological research at the University of Leipzig. This marked psychology as an independent field of study.[5] By creating this laboratory he was able to establish psychology as a separate science from other disciplines. He also formed the first academic journal for psychological research, Philosophische Studien (from 1881 to 1902), set up to publish the Institute's research.[6]

Question: Who is considered the founder of modern psychology?

First Jewish–Roman War

The First Jewish–Roman War (66–73 CE), sometimes called the Great Revolt (Hebrew: המרד הגדול‎ ha-Mered Ha-Gadol), was the first of three major rebellions by the Jews against the Roman Empire, fought in the Eastern Mediterranean. The First Jewish–Roman War took place mainly in the province of Judea (Iudaea); the second was the Kitos War in 115–117, which took place mainly in the diaspora (in Cyprus, Egypt, Mesopotamia and only marginally in Judea), and the third was Bar Kokhba's revolt of 132–136 CE, concentrating in Judea province.

Question: How did the Great Revolt end?
Palatinate Forest

The Palatinate Forest (German: Pfälzerwald, German pronunciation), sometimes also called the Palatine Forest, is a low-mountain region in southwestern Germany, located in the Palatinate in the state of Rhineland-Palatinate. The forest is a designated nature park (German: Naturpark Pfälzerwald) covering 1,771km2 and its highest elevation is the Kalmit (673 m).

Question: Where is the Palatine Forest?

Mirepoix (cuisine)

Similar flavour bases include the Italian soffritto, the Spanish sofrito, refogado/sufrito (braised onions, garlic and tomato) from Portuguese-speaking nations, the German suppengrün (leeks, carrots and celeriac), the Polish włoszczyzna (leeks, carrots, celery root and parsley root), the US Cajun / Creole holy trinity (onions, celery and bell peppers), and possibly the French duxelles (mushrooms and often onion or shallot and herbs, reduced to a paste).

Question: What are the trinity in French cooking?

New Taiwan dollar

New Taiwan dollar (Chinese:新臺幣; pinyin:Xīntáibì; Pe̍h-ōe-jī:Sin-tâi-phiò;  code: TWD; symbol: NT$, also abbreviated as NT) is the official currency of the Republic of China (ROC) used in Taiwan Area. Formally, one dollar (圓) is divided into ten dimes (角), and to 100 cents (分), although cents are never used in practice. The New Taiwan dollars has been the currency of Taiwan since 1949, when it replaced the Old Taiwan dollar, at a rate of 40,000 old dollars per one new dollar.[1] There are a variety of alternative names to the units in Taiwan. The unit of dollar is usually written in simpler form as 元. Colloquially, the currency unit usually called 塊 (kuài, literally piece) in Mandarin, 箍 (kho͘, literally hoop) in Taiwanese Hokkien, and 銀 (ngiùn, literally silver) in Hakka.

Question: What currency is used in Taiwan?

Arlington National Cemetery

The national cemetery was established during the Civil War on the grounds of Arlington House, which had been the estate of Confederate general Robert E Lee's wife Mary Anna Custis Lee (a great-granddaughter of Martha Washington). The Cemetery, along with Arlington House, Memorial Drive, the Hemicycle, and the Arlington Memorial Bridge, form the Arlington National Cemetery Historic District, listed on the National Register of Historic Places in April 2014.[2][3]

Question: When was Arlington National Cemetery first created?
Rikers Island

Rikers Island (/ˈraɪkərz/) is New York City's main jail complex,[1] as well as the name of the 413.17-acre (167.204ha) island on which it sits, in the East River between Queens and the mainland Bronx, adjacent to the runways of LaGuardia Airport.[2] Supposedly named after Abraham Rycken[3][4] who bought the island in 1664,[5] the island is home to one of the world's largest correctional institutions and mental institutions[6] and has been described as New York's most famous jail.[7] The island was originally under 100 acres (40ha) in size, but has since grown over four times to more than 400 acres (160ha). Much of the first stages of expansion was accomplished by convict labor hauling in ashes for landfill. The island itself is politically part of the Bronx, though it is included as part of Queens Community Board 1 and has a Queens ZIP Code of 11370.[8]

Question: What is the worlds largest prison?

Conservation of energy

In 1850, William Rankine first used the phrase the law of the conservation of energy for the principle.[16]

Question: When was the law of conservation of energy introduced?

Utah State Capitol

The Utah State Capitol is the house of government for the U.S. state of Utah. The building houses the chambers and offices of the Utah State Legislature, the offices of the Governor, Lieutenant Governor, Attorney General, the State Auditor and their staffs. The capitol is the main building of the Utah State Capitol Complex, which is located on Capitol Hill, overlooking downtown Salt Lake City.

Question: What city is the capitol of Utah?

Reginald Fessenden

Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father.[1] During his life he received hundreds of patents in various fields, most notably ones related to radio and sonar.

Question: How long did Reginald Aubrey Fessenden live?

Galați

Galați (Romanian pronunciation:[ɡaˈlat͡sʲ](listen); also known by other alternative names) is the capital city of Galați County, in the historical region of Moldavia, eastern Romania. Galați is a port town on the Danube River.[4][5] In 2011, the Romanian census recorded 249,432 residents,[1] making it the 8th most populous city in Romania. Galați is an economic centre based around the port of Galați and the naval shipyard.

Question: What is Galați known for?

2000 Sugar Bowl

The 2000 Sugar Bowl was the designated Bowl Championship Series (BCS) National Championship Game for the 1999 NCAA Division I-A football season and was played on January 4, 2000, at the Louisiana Superdome in New Orleans. The Florida State Seminoles, representing the Atlantic Coast Conference, defeated the Virginia Tech Hokies, representing the Big East Conference, by a score of 46–29. With the win, Florida State clinched the 1999 BCS national championship, the team's second national championship in its history.

Question: Who won the 2000 Sugar Bowl?
Georgios Papadopoulos

Georgios Papadopoulos (/ˌpæpəˈdɒpəlɒs/; Greek: Γεώργιος Παπαδόπουλος [ʝeˈorʝios papaˈðopulos]; 5 May 1919 – 27 June 1999) was the head of the military coup d'état that took place in Greece on 21 April 1967, and leader of the junta that ruled the country from 1967 to 1974. He held his dictatorial power until 1973, when he was himself overthrown by his co-conspirator Dimitrios Ioannidis.

Question: How long did Georgios Papadopoulos lead Greece?

Counter-IED efforts

Counter-IED efforts are done primarily by military and law enforcement (led by intelligence efforts) with the assistance of the diplomatic and financial communities. It involves a comprehensive approach of countering the threat networks that employ improvised explosive devices (IEDs), defeating the devices themselves, and training others. Counter-IED, or C-IED, is usually part of a broader counter-terrorism, counter-insurgency, or law enforcement effort. Because IEDs are a subset of a number of forms of asymmetric warfare used by insurgents and terrorists, C-IED activities are principally against adversaries and not only against IEDs. C-IED treats the IED as a systemic problem and aims to defeat the IED System.

Question: How does Counter-IED work?

Transistor

The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. Julius Edgar Lilienfeld patented a field-effect transistor in 1926[1] but it was not possible to actually construct a working device at that time. The first practically implemented device was  a point-contact transistor invented in 1947 by American physicists John Bardeen, Walter Brattain, and William Shockley. The transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. The transistor is on the list of IEEE milestones in electronics,[2] and Bardeen, Brattain, and Shockley shared the 1956 Nobel Prize in Physics for their achievement.[3]

Question: Who developed the transistor?

Arabic numerals

The first mentions of the numerals in the West are found in the Codex Vigilanus of 976.[22]

Question: When was the Arabic numeral system introduced in Europe?

Anzac Avenue

Opened in 1925, Anzac Memorial Avenue (as it was originally named) is the longest World War I memorial avenue in Queensland and was the first bitumen motor road connecting Brisbane to the popular holiday resort of Redcliffe, and reflects the growth in car usage in the early 1920s. It was added to the Queensland Heritage Register on 5 February 2009.[1]

Question: When was Anzac Avenue first constructed?
Caraga

Caraga, officially known as the Caraga Administrative Region[1] or simply Caraga Region and designated as Region XIII, is an administrative region in the Philippines occupying the northeastern section of the island of Mindanao. The Caraga Region was created through Republic Act No. 7901 on February 23, 1995.[1] The region comprises five provinces: Agusan del Norte, Agusan del Sur, Surigao del Norte, Surigao del Sur and Dinagat Islands;[2] six cities: Bayugan, Bislig, Butuan, Cabadbaran, Surigao and Tandag; 67 municipalities and 1,311 barangays. Butuan is the regional administrative center.

Question: When was the Caraga Administrative Region established?

Fatty acid

In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, from 4 to 28.[1] Fatty acids are usually not found in organisms, but instead as three main classes of esters: triglycerides, phospholipids, and cholesterol esters. In any of these forms, fatty acids are both important dietary sources of fuel for animals and they are important structural components for cells.

Question: What is a fatty acid?

Bleach (manga)

Bleach was serialized in the Japanese manga magazine Weekly Shōnen Jump from August 2001 to August 2016, with its chapters collected into 74 tankōbon volumes. The series has spawned a media franchise that includes an anime television series that was produced by Studio Pierrot from 2004 to 2012, two original video animation episodes, four animated feature films, ten stage musicals, and numerous video games, as well as many types of Bleach-related merchandise. A live-action film adaptation was released in 2018. English-language releases of Bleach are coordinated by Viz Media, which has released several volumes of the manga each year since 2004, and published chapters of Bleach in its Shonen Jump magazine since November 2007. Viz Media secured foreign television and home video distribution rights to the Bleach anime in 2006. Cartoon Network's Adult Swim began airing dubbed episodes of Bleach in the United States that Fall, and Hulu later began to stream subtitled versions of the anime a week after each episode aired in Japan. Viz Media has also released each of the Bleach feature films in English.

Question: When was the first Bleach film released?

Bucharest

Bucharest (/ˈb(j)uːkərɛst/; Romanian: București [bukuˈreʃtʲ](listen)) is the capital and largest city of Romania, as well as its cultural, industrial, and financial centre. It is located in the southeast of the country, at Coordinates: , on the banks of the Dâmbovița River, less than 60km (37.3mi) north of the Danube River and the Bulgarian border.

Question: What is the capital of Romania?
Father's Day (United States)

Father's Day was founded in Spokane, Washington at the YMCA in 1910 by Sonora Smart Dodd, who was born in Arkansas.[4] Its first celebration was in the Spokane YMCA on June 19, 1910.[4][5] Her father, the Civil War veteran William Jackson Smart, was a single parent who raised his six children there.[4] After hearing a sermon about Jarvis' Mother's Day at Central Methodist Episcopal Church in 1909, she told her pastor that fathers should have a similar holiday honoring them.[4][6] Although she initially suggested June 5, her father's birthday, the pastors did not have enough time to prepare their sermons, and the celebration was deferred to the third Sunday of June.[7][8]

Question: When was Father's Day first celebrated in America?

Eternal sin

In Christian hamartiology, eternal sins, unforgivable sins, or unpardonable sins are sins which will not be forgiven by God. One eternal or unforgivable sin (blasphemy against the Holy Spirit) is specified in several passages of the Synoptic Gospels, including , , and .

Question: What is the biggest sin for a Christian?

Transistor radio

A transistor radio is a small portable radio receiver that uses transistor-based circuitry.  Following their development in 1954, made possible by the invention of the transistor in 1947, they became the most popular electronic communication device in history, with billions[1] manufactured during the 1960s and 1970s. Their pocket size sparked a change in popular music listening habits, allowing people to listen to music anywhere they went. Beginning in the 1980s, however, cheap AM transistor radios were superseded by devices with higher audio quality such as portable CD players, personal audio players, boomboxes, and (eventually) smartphones,[2] some of which contain radios themselves.[3]

Question: When was the transistor radio invented?

Dissection

Human dissections were carried out by the Greek physicians Herophilus of Chalcedon and Erasistratus of Chios in the early part of the third century BC.[7] During this period, the first exploration into full human anatomy was performed rather than a base knowledge gained from 'problem-solution' delving.[8] While there was a deep taboo in Greek culture concerning human dissection, there was at the time a strong push by the Ptolemaic government to build Alexandria into a hub of scientific study.[8] For a time, Roman law forbade dissection and autopsy of the human body,[9] so physicians had to use other cadavers. Galen, for example, dissected the Barbary macaque and other primates, assuming their anatomy was basically the same as that of humans.[10][11][12]

Question: Who first performed human dissection?