Context: The Bibliothèque nationale et universitaire (BNU) is, with its collection of more than 3,000,000 titles, the second largest library in France after the Bibliothèque 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."

Question: What is the second largest library in France? 
Answer: Bibliothèque nationale et universitaire

Question: How many titles does the library have?
Answer: 3,000,000

Question: Who founded the library?
Answer: German administration

Question: When was the previous library destroyed?
Answer: 1871

Question: What was the library marked as on the map?
Answer: City Hall

Question: How many books does the Bibliotheque nationale de France hold?
Answer: Unanswerable

Question: In what year was the previous municipal library completely destroyed?
Answer: Unanswerable

Question: In what year did a French map maker accidentally mark the library as "City Hall"?
Answer: Unanswerable

Question: In what year did the German artillery bomb the library?
Answer: Unanswerable

Question: Who founded the Bibliotheque nationale de France?
Answer: Unanswerable