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Tucson is commonly known as "The Old Pueblo". While the exact origin of this nickname is uncertain, it is commonly traced back to Mayor R. N. "Bob" Leatherwood. When rail service was established to the city on March 20, 1880, Leatherwood celebrated the fact by sending telegrams to various leaders, including the President of the United States and the Pope, announcing that the "ancient and honorable pueblo" of Tucson was now connected by rail to the outside world. The term became popular with newspaper writers who often abbreviated it as "A. and H. Pueblo". This in turn transformed into the current form of "The Old Pueblo".

Who is thought to have led to calling Tucson 'The Old Pueblo'?
Answer: Mayor R. N. "Bob" Leatherwood
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The first lighting used on an airport was during the latter part of the 1920s; in the 1930s approach lighting came into use. These indicated the proper direction and angle of descent. The colours and flash intervals of these lights became standardized under the International Civil Aviation Organization (ICAO). In the 1940s, the slope-line approach system was introduced. This consisted of two rows of lights that formed a funnel indicating an aircraft's position on the glideslope. Additional lights indicated incorrect altitude and direction.

When did approach lighting come into use?
Answer: 1930s
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The Bibliotheque nationale et universitaire (BNU) is, with its collection of more than 3,000,000 titles, the second largest library in France after the Bibliotheque nationale de France. It was founded by the German administration after the complete destruction of the previous municipal library in 1871 and holds the unique status of being simultaneously a students' and a national library. The Strasbourg municipal library had been marked erroneously as "City Hall" in a French commercial map, which had been captured and used by the German artillery to lay their guns. A librarian from Munich later pointed out "...that the destruction of the precious collection was not the fault of a German artillery officer, who used the French map, but of the slovenly and inaccurate scholarship of a Frenchman."

Who founded the library?
Answer:
German administration