How quickly prejudice took hold in one classroom

In 1968, teacher Jane Elliott told her class that blue-eyed kids were biologically superior to brown-eyed kids. Within hours, these adorable eight-year-olds turned into ruthless fascists, viciously bullying their former friends. The exercise proved that manufactured status hierarchies and prejudice aren't just learned behaviors—they are incredibly easy to install, like malware in a toddler's brain.