The problem: Answer a question about this article:
Southampton became a spa town in 1740. It had also become a popular site for sea bathing by the 1760s, despite the lack of a good quality beach. Innovative buildings specifically for this purpose were built at West Quay, with baths that were filled and emptied by the flow of the tide.
What change in flow of the sea controlled the innovative baths at West Quay?
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The answer: the tide

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Fused quartz is a glass made from chemically-pure SiO2 (silica). It has excellent thermal shock characteristics, being able to survive immersion in water while red hot. However, its high melting-temperature (1723 C) and viscosity make it difficult to work with. Normally, other substances are added to simplify processing. One is sodium carbonate (Na2CO3, "soda"), which lowers the glass transition temperature. The soda makes the glass water-soluble, which is usually undesirable, so lime (calcium oxide [CaO], generally obtained from limestone), some magnesium oxide (MgO) and aluminium oxide (Al2O3) are added to provide for a better chemical durability. The resulting glass contains about 70 to 74% silica by weight and is called a soda-lime glass. Soda-lime glasses account for about 90% of manufactured glass.
What percentage of soda-lime glass is silica?
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The answer: 70 to 74

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Parallel to events in Germany, a movement began in Switzerland under the leadership of Huldrych Zwingli. Zwingli was a scholar and preacher, who in 1518 moved to Zurich. Although the two movements agreed on many issues of theology, some unresolved differences kept them separate. A long-standing resentment between the German states and the Swiss Confederation led to heated debate over how much Zwingli owed his ideas to Lutheranism. The German Prince Philip of Hesse saw potential in creating an alliance between Zwingli and Luther. A meeting was held in his castle in 1529, now known as the Colloquy of Marburg, which has become infamous for its failure. The two men could not come to any agreement due to their disputation over one key doctrine.
What was the name of the meeting to make an alliance between Zwingli and Luther?
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The answer: the Colloquy of Marburg

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After the Russian Revolution of 1917 guerrillas throughout Central Asia, known as basmachi, waged a war against Bolshevik armies in a futile attempt to maintain independence. The Bolsheviks prevailed after a four-year war, in which mosques and villages were burned down and the population heavily suppressed. Soviet authorities started a campaign of secularization, practicing Islam, Judaism, and Christianity was discouraged and repressed, and many mosques, churches, and synagogues were closed. As a consequence of the conflict and Soviet agriculture policies, Central Asia, Tajikistan included, suffered a famine that claimed many lives.
Who won the war?
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The answer:
The Bolsheviks