Title: Seven Years%27 War.
Question: What area was preserved from Prussian invasion?

Title: Eton College.
Question: What purpose did Eton Dorney have to the London Olympic games?

Title: Paris.
Question: How many people visited the Louvre in 2013?

Title: Daylight saving time.
Question:
What country joined Canada, the UK, and Ireland in continuing to observe Daylight Saving Time after the war?