The Nike Swoosh was designed in 1971 and cost Phil Knight, the founder of Nike, just US$35.

The Nike website tells how Knight was '... staring down a deadline. Shoe boxes in Mexico were waiting to be printed. He needed a logo. He needed a decision.'

He had numerous designs in front of him, all by Carolyn Davidson, a young designer. Apparently he grabbed the Swoosh, telling Davidson: "I don't love it, but it will grow on me."

I think we can be certain that the Swoosh, now one of the most recognized symbols in the world, grew on Phil.