Problem: In which year did Charles, Duke of Orleans, send the first known Valentine's card?
Answer: 1415

Problem: In 1844, Samuel Morse used which four-word Biblical quote when he sent the world's first public telegraph message?
Answer: what hath god wrought

Problem: In which wars did the battles of Towton and Barnet take place?
Answer: wars of roses

Problem: Which surrealist artist, 1898-1967, featured bowler hats in many of his paintings?
Answer:
rene magritte