Jane Elliott is an American diversity educator. As a schoolteacher, she became known for her "Blue eyes/Brown eyes" exercise, which she first conducted with her third-grade class on April 5, 1968, the day after the assassination of Martin Luther King Jr
What the infamous "blue eyes / brown eyes" exercise actually demonstrated is that when groups of people are treated differently by an authority figure, they will divide into antagonistic tribes.
This is now being played out on a national scale.