Title: 51st state.
Question: In the aftermath of which war was the U.S. granted Puerto Rico?

Title: Neoclassical architecture.
Question: In what year did the St Paul's Pro-Cathedral get built?

Title: The Sun (United Kingdom).
Question: What did The Sun reporters make Contostavlos believe?

Title: Frederic Chopin.
Question:
What was the name of the teacher of Chopin's three year course that began in the fall of 1826?