Title: States of Germany.
Question: When did Pyrmont join Prussia?

Title: Freemasonry.
Question: Who did the Grand Masters call upon to explain that Freemasonry was not an unlawful society?

Title: Law of the United States.
Question: What does congress often grant to give rulemaking authority to federal agencies?

Title: New York City.
Question:
How many stations does the  New York City Subway system contain?