Problem: Party leaders of the United States House of Representatives:

Another scholar contends that the minority leader position emerged even before 1883. On the Democratic side, "there were serious caucus fights for the minority speakership nomination in 1871 and 1873," indicating that the "nomination carried with it some vestige of leadership." Further, when Republicans were in the minority, the party nominated for Speaker a series of prominent lawmakers, including ex-Speaker James Blaine of Maine in 1875, former Appropriations Chairman James A. Garfield of Ohio, in 1876, 1877, and 1879, and ex-Speaker Keifer in 1883. "It is hard to believe that House partisans would place a man in the speakership when in the majority, and nominate him for this office when in the minority, and not look to him for legislative guidance." This was not the case, according to some observers, with respect to ex-Speaker Keifer.

What were the Republicans fighting for in 1877 and 1879?
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A: unanswerable


Problem: Slavs:

Cossacks, although Slavic-speaking and Orthodox Christians, came from a mix of ethnic backgrounds, including Tatars and other Turks. Many early members of the Terek Cossacks were Ossetians.

What religious affiliation did the Cossacks have?
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A: Orthodox Christians


Problem: Age of Enlightenment:

The vast majority of the reading public could not afford to own a private library, and while most of the state-run "universal libraries" set up in the 17th and 18th centuries were open to the public, they were not the only sources of reading material. On one end of the spectrum was the Bibliothèque Bleue, a collection of cheaply produced books published in Troyes, France. Intended for a largely rural and semi-literate audience these books included almanacs, retellings of medieval romances and condensed versions of popular novels, among other things. While some historians have argued against the Enlightenment's penetration into the lower classes, the Bibliothèque Bleue represents at least a desire to participate in Enlightenment sociability. Moving up the classes, a variety of institutions offered readers access to material without needing to buy anything. Libraries that lent out their material for a small price started to appear, and occasionally bookstores would offer a small lending library to their patrons. Coffee houses commonly offered books, journals and sometimes even popular novels to their customers. The Tatler and The Spectator, two influential periodicals sold from 1709 to 1714, were closely associated with coffee house culture in London, being both read and produced in various establishments in the city. This is an example of the triple or even quadruple function of the coffee house: reading material was often obtained, read, discussed and even produced on the premises.

Which two influential periodicals  were closely associated with London coffee house culture and were sold from 1909 to 1714? 
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A: The Tatler and The Spectator


Problem: Glass:

Following the glass batch preparation and mixing, the raw materials are transported to the furnace. Soda-lime glass for mass production is melted in gas fired units. Smaller scale furnaces for specialty glasses include electric melters, pot furnaces, and day tanks. After melting, homogenization and refining (removal of bubbles), the glass is formed. Flat glass for windows and similar applications is formed by the float glass process, developed between 1953 and 1957 by Sir Alastair Pilkington and Kenneth Bickerstaff of the UK's Pilkington Brothers, who created a continuous ribbon of glass using a molten tin bath on which the molten glass flows unhindered under the influence of gravity. The top surface of the glass is subjected to nitrogen under pressure to obtain a polished finish. Container glass for common bottles and jars is formed by blowing and pressing methods. This glass is often slightly modified chemically (with more alumina and calcium oxide) for greater water resistance. Further glass forming techniques are summarized in the table Glass forming techniques.

What happens during refining?
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A:
removal of bubbles