“THE GREATEST DUTY of America today is to build up our educational system.” That sentiment probably seems anodyne, like something you might have heard on the campaign trail in the recently concluded midterms. A century ago, it represented the top priority of the Ku Klux Klan.
“Throughout the boom years of the early 1920s,” the historian Adam Laats notes in a 2012 article, “every local Klan group made education reform a leading
