QUESTION: Generate a question with a factual answer?

ANS: What war caused severe damage to Germany?

QUESTION: Generate a question with a factual answer?

ANS: What battle is considered the US's first significant fight in the Korean War?

QUESTION: Generate a question with a factual answer?

ANS: What time period was marked by the spreading of Islam?

QUESTION: Generate a question with a factual answer?

ANS:
What caused long lines in most major cities?