We have a lot to thank horses for in our everyday lives, from the Hollywood motion picture, to life-saving vaccines for diphtheria and tetanus, to a staple in our closets: pants. "Prior to riding horses, no one wore pants," says historian Timothy Winegard. He argues that horses are intertwined in our own history to the point that we overlook their importance. His research explains how they shaped societies, economies and cultures. Without us, horses would be nowhere, and vice versa. It was a partnership — our brains and their braun — that truly changed the world. *This episode originally aired on Sept. 10, 2024.