How Superman Defeated the Ku Klux Klan

I just read about this in a book Freakonomics by Steven D. Levitt and Stephen J. Dubner.

I was amazed how well the Superman stories worked.

Freakonomics: https://en.wikipedia.org/wiki/Freakonomics

Episodes 985-1000 here: http://www.botar.us/superman.html

Someone else watches Drunk History I guess.