The problem: Answer a question about this article:
In the latter half of the 19th century the locale of South Kensington was developed as "Albertopolis", a cultural and scientific quarter. Three major national museums are there: the Victoria and Albert Museum (for the applied arts), the Natural History Museum and the Science Museum. The National Portrait Gallery was founded in 1856 to house depictions of figures from British history; its holdings now comprise the world's most extensive collection of portraits. The national gallery of British art is at Tate Britain, originally established as an annexe of the National Gallery in 1897. The Tate Gallery, as it was formerly known, also became a major centre for modern art; in 2000 this collection moved to Tate Modern, a new gallery housed in the former Bankside Power Station.
What was the original purpose for the construction of the Tate Gallery?
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The answer: as an annexe of the National Gallery

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Noted 19th-century mosaics include those by Edward Burne-Jones at St Pauls within the Walls in Rome. Another modern mosaic of note is the world's largest mosaic installation located at the Cathedral Basilica of St. Louis, located in St. Louis, Missouri. A modern example of mosaic is the Museum of Natural History station of the New York City Subway (there are many such works of art scattered throughout the New York City subway system, though many IND stations are usually designed with bland mosaics.) Another example of mosaics in ordinary surroundings is the use of locally themed mosaics in some restrooms in the rest areas along some Texas interstate highways.
What along texas interstate Highways contains everyday examples of mosaics?
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The answer: the rest areas

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Boston's park system is well-reputed nationally. In its 2013 ParkScore ranking, The Trust for Public Land reported that Boston was tied with Sacramento and San Francisco for having the third-best park system among the 50 most populous US cities. ParkScore ranks city park systems by a formula that analyzes the city's median park size, park acres as percent of city area, the percent of residents within a half-mile of a park, spending of park services per resident, and the number of playgrounds per 10,000 residents.
Parkscore ranks the number of resident within what distance of the park?
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The answer: a half-mile

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As this process continued, the missile found itself being used for more and more of the roles formerly filled by guns. First to go were the large weapons, replaced by equally large missile systems of much higher performance. Smaller missiles soon followed, eventually becoming small enough to be mounted on armored cars and tank chassis. These started replacing, or at least supplanting, similar gun-based SPAAG systems in the 1960s, and by the 1990s had replaced almost all such systems in modern armies. Man-portable missiles, MANPADs as they are known today, were introduced in the 1960s and have supplanted or even replaced even the smallest guns in most advanced armies.
When were MANPADs introduced?
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The answer:
the 1960s