Arnold Palmer's iconic umbrella logo, recognized globally, was created by accident after a chance encounter in the rain.

What are you wearing? If it’s golf apparel, there’s a decent chance it has a logo on it. A course crest on the chest. A name stitched on the sleeve. A quiet signal to anyone who knows how to read it.

This article is part of "The Business of Sports," a series on the teams, leagues, and brands turning competition into big business. We're in the midst of a golf renaissance in the United States.