There are symbols all around us that we take for granted, like the lightning strike icon, which indicates that something is high voltage. Or a little campfire to indicate that something is flammable. Those icons are pretty obvious, but there are others that aren't so straightforward. Like, why do a triangle and a stick in a circle indicate "peace"? Where does the smiley face actually come from? Or the power symbol? We sent out the 99PI team to dig into the backstory behind some of those images you see every day.

Ubiquitous Icons: Peace, Power, and Happiness

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.