Following the war, some of these military airfields added civil facilities for handling passenger traffic. One of the earliest such fields was Paris – Le Bourget Airport at Le Bourget, near Paris. The first airport to operate scheduled international commercial services was Hounslow Heath Aerodrome in August 1919, but it was closed and supplanted by Croydon Airport in March 1920. In 1922, the first permanent airport and commercial terminal solely for commercial aviation was opened at Flughafen Devau near what was then Königsberg, East Prussia. The airports of this era used a paved "apron", which permitted night flying as well as landing heavier aircraft.
What was the first airport to operate scheduled international commercial services?
Hounslow Heath Aerodrome


Input: Anti-aircraft warfare
Rheinmetall in Germany developed an automatic 20 mm in the 1920s and Oerlikon in Switzerland had acquired the patent to an automatic 20 mm gun designed in Germany during World War I. Germany introduced the rapid-fire 2 cm FlaK 30 and later in the decade it was redesigned by Mauser-Werke and became the 2 cm FlaK 38. Nevertheless, while 20 mm was better than a machine gun and mounted on a very small trailer made it easy to move, its effectiveness was limited. Germany therefore added a 3.7 cm. The first, the 3.7 cm FlaK 18 developed by Rheinmetall in the early 1930s, was basically an enlarged 2 cm FlaK 30. It was introduced in 1935 and production stopped the following year. A redesigned gun 3.7 cm FlaK 36 entered service in 1938, it too had a two-wheel carriage. However, by the mid-1930s the Luftwaffe realised that there was still a coverage gap between 3.7 cm and 8.8 cm guns. They started development of a 5 cm gun on a four-wheel carriage.

In the 1920s, which company developed the automatic 20 mm?
Output: Rheinmetall


Input: Article: The dock connector also allowed the iPod to connect to accessories, which often supplement the iPod's music, video, and photo playback. Apple sells a few accessories, such as the now-discontinued iPod Hi-Fi, but most are manufactured by third parties such as Belkin and Griffin. Some peripherals use their own interface, while others use the iPod's own screen. Because the dock connector is a proprietary interface, the implementation of the interface requires paying royalties to Apple.

Now answer this question: What is the condition for third parties using the dock connector?

Output: paying royalties


Article: Sport plays an important role in Estonian culture. After declaring independence from Russia in 1918, Estonia first competed as a nation at the 1920 Summer Olympics, although the National Olympic Committee was established in 1923. Estonian athletes took part of the Olympic Games until the country was annexed by the Soviet Union in 1940. The 1980 Summer Olympics Sailing regatta was held in the capital city Tallinn. After regaining independence in 1991, Estonia has participated in all Olympics. Estonia has won most of its medals in athletics, weightlifting, wrestling and cross-country skiing. Estonia has had very good success at the Olympic games given the country's small population. Estonia's best results were being ranked 13th in the medal table at the 1936 Summer Olympics, and 12th at the 2006 Winter Olympics.

Question: What city hosted the 1980 Summer Olympics Sailing regatta?
Ans: Tallinn


Here is a question about this article: The graphic novel—book-length comics—began to gain attention after Will Eisner popularized the term with his book A Contract with God (1978). The term became widely known with the public after the commercial success of Maus, Watchmen, and The Dark Knight Returns in the mid-1980s. In the 21st century graphic novels became established in mainstream bookstores and libraries and webcomics became common.
What is the answer to this question: What decade did the term "graphic novel" become well known by the public?
****
So... 1980s


Article: Nicholas Lezard described post-punk as "a fusion of art and music". The era saw the robust appropriation of ideas from literature, art, cinema, philosophy, politics and critical theory into musical and pop cultural contexts. Artists sought to refuse the common distinction between high and low culture and returned to the art school tradition found in the work of artists such as Captain Beefheart and David Bowie. Among major influences on a variety of post-punk artists were writers such as William S. Burroughs and J.G. Ballard, avant-garde political scenes such as Situationism and Dada, and intellectual movements such as postmodernism. Many artists viewed their work in explicitly political terms. Additionally, in some locations, the creation of post-punk music was closely linked to the development of efficacious subcultures, which played important roles in the production of art, multimedia performances, fanzines and independent labels related to the music. Many post-punk artists maintained an anti-corporatist approach to recording and instead seized on alternate means of producing and releasing music. Journalists also became an important element of the culture, and popular music magazines and critics became immersed in the movement.

Question: Where did post-punk ram its appropriation of ideas into?
Ans:
musical and pop cultural contexts