How Nike has defined what's 'cool' for 40 years

It's an indisputable fact that no brand has driven sneaker culture like Nike. 

It has connected running, hip hop, and streetwear, made athletes into legends, and helped change American attitudes on exercise. 

Here's just a few of the ways Nike has defined "cool" in American culture since its founding more than 50 years ago.

Drake Baer contributed reporting to an earlier version of this article.