General Knowledge Quiz for Saturday, 20 July 2013

A new general knowledge quiz is available every day. Try today's quiz or work through our archive of daily and themed quizzes.

Question 1: The Thirty Years War between Catholic and Protestant countries in the Holy Roman Empire, beginning in 1618, altered in 1635 to become a fight between the Hapsburgs and Spain on one side against which new combatant on the other?