Title: Southern Europe.
Question: Where do colder areas occur within southern Europe?

Title: Energy.
Question: Who was possibly the first to use the term "energy" instead of vis viva?

Title: Lighting.
Question: What kind of tube are the movie theaters lights enclosed in?

Title: Age of Enlightenment.
Question:
How many dictionaries and encyclopedias were published between 1760 and 1769?