Title: Switzerland.
Question: Which four main linguistic and cultural regions make up Switzerland?

Title: Bras%C3%ADlia.
Question: What mostly-unplanned cities are around Brasilia?

Title: Middle Ages.
Question: What Platonic idea lost influence as a result of the work of Ockham and Duns Scotus?

Title: IPod.
Question:
What other Apple product was unveiled on September 12, 2012?