QUESTION: Generate a question with a factual answer?

ANS: When did the Hostellers of London become a guild?

QUESTION: Generate a question with a factual answer?

ANS: What year is considered the be the last of the Dark Ages?

QUESTION: Generate a question with a factual answer?

ANS: How much did rubella, measles, and mumps infections drop after vaccination?

QUESTION: Generate a question with a factual answer?

ANS:
In what year was Royal Prussia annexed?