Problem: Mandolin:

Prior to the Golden Age of Mandolins, France had a history with the mandolin, with mandolinists playing in Paris until the Napoleonic Wars. The players, teachers and composers included Giovanni Fouchetti, Eduardo Mezzacapo, Gabriele Leon, and Gervasio. During the Golden age itself (1880s-1920s), the mandolin had a strong presence in France. Prominent mandolin players or composers included Jules Cottin and his sister Madeleine Cottin, Jean Pietrapertosa, and Edgar Bara. Paris had dozens of "estudiantina" mandolin orchestras in the early 1900s. Mandolin magazines included L'Estudiantina, Le Plectre, Ecole de la mandolie.

When did the mandolinists stop playing in Paris?
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A: Napoleonic Wars.

Problem: Freemasonry:

The ritual form on which the Grand Orient of France was based was abolished in England in the events leading to the formation of the United Grand Lodge of England in 1813. However the two jurisdictions continued in amity (mutual recognition) until events of the 1860s and 1870s drove a seemingly permanent wedge between them. In 1868 the Supreme Council of the Ancient and Accepted Scottish Rite of the State of Louisiana appeared in the jurisdiction of the Grand Lodge of Louisiana, recognised by the Grand Orient de France, but regarded by the older body as an invasion of their jurisdiction. The new Scottish rite body admitted blacks, and the resolution of the Grand Orient the following year that neither colour, race, nor religion could disqualify a man from Masonry prompted the Grand Lodge to withdraw recognition, and it persuaded other American Grand Lodges to do the same.

Who did the new Scottish rite body refuse to admit?
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A: unanswerable

Problem: Miami:

Miami's road system is based along the numerical "Miami Grid" where Flagler Street forms the east-west baseline and Miami Avenue forms the north-south meridian. The corner of Flagler Street and Miami Avenue is in the middle of Downtown in front of the Downtown Macy's (formerly the Burdine's headquarters). The Miami grid is primarily numerical so that, for example, all street addresses north of Flagler Street and west of Miami Avenue have "NW" in their address. Because its point of origin is in Downtown, which is close to the coast, therefore, the "NW" and "SW" quadrants are much larger than the "SE" and "NE" quadrants. Many roads, especially major ones, are also named (e.g., Tamiami Trail/SW 8th St), although, with exceptions, the number is in more common usage among locals.

What is Miami's street plan not called?
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A: unanswerable

Problem: Ann Arbor, Michigan:

A person from Ann Arbor is called an "Ann Arborite", and many long-time residents call themselves "townies". The city itself is often called "A" ("A-squared") or "A2" ("A two") or "AA", "The Deuce" (mainly by Chicagoans), and "Tree Town". With tongue-in-cheek reference to the city's liberal political leanings, some occasionally refer to Ann Arbor as "The People's Republic of Ann Arbor" or "25 square miles surrounded by reality", the latter phrase being adapted from Wisconsin Governor Lee Dreyfus's description of Madison, Wisconsin. In A Prairie Home Companion broadcast from Ann Arbor, Garrison Keillor described Ann Arbor as "a city where people discuss socialism, but only in the fanciest restaurants." Ann Arbor sometimes appears on citation indexes as an author, instead of a location, often with the academic degree MI, a misunderstanding of the abbreviation for Michigan. Ann Arbor has become increasingly gentrified in recent years.

What city is known as 52 square miles surrounded by reality?
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A:
unanswerable