The problem: Answer a question about this article:
The events of the Franco-Prussian War had great influence on military thinking over the next forty years. Lessons drawn from the war included the need for a general staff system, the scale and duration of future wars and the tactical use of artillery and cavalry. The bold use of artillery by the Prussians, to silence French guns at long range and then to directly support infantry attacks at close range, proved to be superior to the defensive doctrine employed by French gunners. The Prussian tactics were adopted by European armies by 1914, exemplified in the French 75, an artillery piece optimised to provide direct fire support to advancing infantry. Most European armies ignored the evidence of the Russo-Japanese War of 1904–05 which suggested that infantry armed with new smokeless-powder rifles could engage gun crews effectively. This forced gunners to fire at longer range using indirect fire, usually from a position of cover.
Lessons garnered from the war included recognizing the need for what kind of system?
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The answer: general staff system


The problem: Answer a question about this article:
Some fans enjoy a pastime of collecting tapes of wrestling shows from specific companies, of certain wrestlers, or of specific genres. The Internet has given fans exposure to worldwide variations of wrestling they would be unable to see otherwise. Since the 1990s, many companies have been founded which deal primarily in wrestling footage. When the WWF purchased both WCW and ECW in 2001, they also obtained the entire past video libraries of both productions and have released many past matches online and on home video.
What has the internet done for wrestling fans? 
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The answer: exposure to worldwide variations of wrestling


The problem: Answer a question about this article:
It was not until the end of the eighteenth century that migration as an explanation for the winter disappearance of birds from northern climes was accepted. Thomas Bewick's A History of British Birds (Volume 1, 1797) mentions a report from "a very intelligent master of a vessel" who, "between the islands of Minorca and Majorca, saw great numbers of Swallows flying northward", and states the situation in Britain as follows:
Which directions were the Swallows flying?
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The answer: northward


The problem: Answer a question about this article:
In military affairs, the use of infantry with specialised roles increased. Along with the still-dominant heavy cavalry, armies often included mounted and infantry crossbowmen, as well as sappers and engineers. Crossbows, which had been known in Late Antiquity, increased in use partly because of the increase in siege warfare in the 10th and 11th centuries.[AB] The increasing use of crossbows during the 12th and 13th centuries led to the use of closed-face helmets, heavy body armour, as well as horse armour. Gunpowder was known in Europe by the mid-13th century with a recorded use in European warfare by the English against the Scots in 1304, although it was merely used as an explosive and not as a weapon. Cannon were being used for sieges in the 1320s, and hand-held guns were in use by the 1360s.
In what century did Europeans become aware of gunpowder?
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The answer:
13th