John Philip Sousa didn’t invent the sousaphone, he commissioned its invention by Philadelphia instrument maker J.W. Pepper circa 1895. Sousa wanted something easier to hold and play than the tuba. He also wanted the new instrument’s sound to be projected straight ahead from the musician. Compare online pictures of tubas and sousaphones to see the differences.

In a 1963 TV interview with talk-show host Jack Paar, Cassius Clay (not yet calling himself Muhammad Ali) revealed why he decided to become a boxer. What was the reason?

A) To emulate Joe Louis

B) To beat up the boy who stole his bicycle

C) To defend himself against bullies

D) To impress his girlfriend

Monday’s answer: The word “alligator” is derived from the Spanish “el lagarto,” which means “the lizard.”