QUESTION: Generate a question with a factual answer?

ANS: What years did no important political changes happen during?

QUESTION: Generate a question with a factual answer?

ANS: Which crime costs over one trillion U.S. dollars every year, world-wide?

QUESTION: Generate a question with a factual answer?

ANS: In what century did "style" as an artistic concept arise?

QUESTION: Generate a question with a factual answer?

ANS:
When did royal weddings begin at the church?