Others have given you good explanations and I won't repeat them. Instead, let me suggest that you look at some of the writings on the name of the NAACP as it moved into the "current" era. See if that helps illuminate this for you.
Bonus question regarding your opening question: allowed by whom?
Bonus question regarding what you thought when you read it: aside from wondering about the usage, what did the title make you think or ask yourself?