According to the excerpt the league of nations was important for which reason

There are a lot of causes that tell that the union of the country was the failure, but there were some successes by this conference. First in this battle at Upper Silesia the industrialized region on the German-Polish border in 1921. Both Germany and Poland needed power and this population comprised of both nationalities. The League of Nations organized the Plebiscite so that the Silesians would take on their status. The business countries voted mostly for German state while the rural states voted to be Polish. The League of Nations separated the area along these lines, but it made at good guards to prevent future conflicts.

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time

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explanation: