Trivia Time - 1

I have decided to post some trivia questions every week . No cheating or googling. Give your answers in the comment section.

1. What celestial objects were once referred to as "hairy stars"?
2. What century saw the invention of the shoelace?
3. What hereditary blood defect is known as "the royal disease"?
4. What song was the Navy band playing at Pearl Harbor when the Japanese attacked?
5. Which northwestern state in U.S borders only two other states?

Answers will be posted next week along with Trivia-2.