Mining was important in Thuringia since the later Middle Ages, especially within the mining towns of the Thuringian Forest such as Schmalkalden, Suhl and Ilmenau. Following the industrial revolution, the old iron, copper and silver mines declined because the competition from imported metal was too strong. On the other hand, the late 19th century brought new types of mines to Thuringia: the lignite surface mining around Meuselwitz near Altenburg in the east of the Land started in the 1870s, and two potash mining districts were established around 1900. These are the Südharzrevier in the north of the state, between Bischofferode in the west and Roßleben in the east with Sondershausen at its centre, and the Werrarevier on the Hessian border around Vacha and Bad Salzungen in the west. Together, they accounted for a significant part of the world's potash production in the mid-20th century. After the reunification, the Südharzrevier was abandoned, whereas K+S took over the mines in the Werrarevier. Between 1950 and 1990, uranium mining was also important to cover the Soviet Union's need for this metal. The centre was Ronneburg near Gera in eastern Thuringia and the operating company Wismut was under direct Soviet control.
Why did the iron, copper and silver mines fail?
because the competition from imported metal was too strong


Input: Religion in ancient Rome
Roman camps followed a standard pattern for defense and religious ritual; in effect they were Rome in miniature. The commander's headquarters stood at the centre; he took the auspices on a dais in front. A small building behind housed the legionary standards, the divine images used in religious rites and in the Imperial era, the image of the ruling emperor. In one camp, this shrine is even called Capitolium. The most important camp-offering appears to have been the suovetaurilia performed before a major, set battle. A ram, a boar and a bull were ritually garlanded, led around the outer perimeter of the camp (a lustratio exercitus) and in through a gate, then sacrificed: Trajan's column shows three such events from his Dacian wars. The perimeter procession and sacrifice suggest the entire camp as a divine templum; all within are purified and protected.

How were Roman camps laid out?
Output: standard pattern


Input: Article: The popularity of superhero comic books declined following World War II, while comic book sales continued to increase as other genres proliferated, such as romance, westerns, crime, horror, and humour. Following a sales peak in the early 1950s, the content of comic books (particularly crime and horror) was subjected to scrutiny from parent groups and government agencies, which culminated in Senate hearings that led to the establishment of the Comics Code Authority self-censoring body. The Code has been blamed for stunting the growth of American comics and maintaining its low status in American society for much of the remainder of the century. Superheroes re-established themselves as the most prominent comic book genre by the early 1960s. Underground comix challenged the Code and readers with adult, countercultural content in the late 1960s and early 1970s. The underground gave birth to the alternative comics movement in the 1980s and its mature, often experimental content in non-superhero genres.

Now answer this question: When did super heroes become popular again in comic books?

Output: 1960s


Article: During the Pacific War Funafuti was used as a base to prepare for the subsequent seaborn attacks on the Gilbert Islands (Kiribati) that were occupied by Japanese forces. The United States Marine Corps landed on Funafuti on 2 October 1942 and on Nanumea and Nukufetau in August 1943. The Japanese had already occupied Tarawa and other islands in what is now Kiribati, but were delayed by the losses at the Battle of the Coral Sea. The islanders assisted the American forces to build airfields on Funafuti, Nanumea and Nukufetau and to unload supplies from ships. On Funafuti the islanders shifted to the smaller islets so as to allow the American forces to build the airfield and to build naval bases and port facilities on Fongafale. A Naval Construction Battalion (Seabees) built a sea plane ramp on the lagoon side of Fongafale islet for seaplane operations by both short and long range seaplanes and a compacted coral runway was also constructed on Fongafale, with runways also constructed to create Nanumea Airfield and Nukufetau Airfield. USN Patrol Torpedo Boats (PTs) were based at Funafuti from 2 November 1942 to 11 May 1944.

Question: What action delayed the Japanese occupation of the Gilbert Islands?
Ans: Battle of the Coral Sea


Here is a question about this article: The first PCBs used through-hole technology, mounting electronic components by leads inserted through holes on one side of the board and soldered onto copper traces on the other side. Boards may be single-sided, with an unplated component side, or more compact double-sided boards, with components soldered on both sides. Horizontal installation of through-hole parts with two axial leads (such as resistors, capacitors, and diodes) is done by bending the leads 90 degrees in the same direction, inserting the part in the board (often bending leads located on the back of the board in opposite directions to improve the part's mechanical strength), soldering the leads, and trimming off the ends. Leads may be soldered either manually or by a wave soldering machine.
What is the answer to this question: If a lead wasn't soldered manually, what device was used?
****
So... wave soldering machine


Article: Finalist Phillip Phillips suffered from kidney pain and was taken to the hospital before the Top 13 results show, and later received medical procedure to alleviate a blockage caused by kidney stones. He was reported to have eight surgeries during his Idol run, and had considered quitting the show due to the pain. He underwent surgery to remove the stones and reconstruct his kidney soon after the season had finished.

Question: Why was Phillip Phillips hospitalized during his time on American Idol?
Ans:
kidney stones