This form of public discourse goes back to Ancient Roman murals and now signs, streets and tags proclaiming the BLM movement have spread across the world.
Here's one local example out of many . . .
KANSAS CITY, Kan. - Local artist put the finishing touches on a mural at 18th and Quindaro Blvd. It's part of the Black Lives Matter movement. They hope this piece of artwork stops people in their tracks to start a conversation. Lucky Easterwood spray painted a powerful message of hope.