You are welcome. 
 Could you tell me about France? 
 I've never heard of the Black Death. What is that? 
 Half of the 17 million population of France died when France was struck by the Black death, which affected the rest of Europe. 
 Yes I would like to know about the history of France.
Half of the 17 million population of France died when France was struck by the Black death, which affected the rest of Europe.