On This Day: 23 December 1972 Earthquake destroys central Managua, ---------- ?

Questions

What famous classical composer continued to compose great music after becoming deaf?

What famous mountain is often photographed by film of the same name?

What famous priest ministered to the molokai lepers from 1873 until his death?

What fantasia suite features autumn fairies and frost fairies?

What fast-food chain was named for brothers Forrest and LeRoy Raffel in 1964?