Like scholars in other fields, historians have long occupied themselves in self-justification. In a society which calibrates all measures by a single standard, the proof of scientific worth became relevance, which in turn was interpreted as a search not for truth but for political correctness. In a blistering professional critique of this tendency in academic scholarship, perhaps the first of its kind, Oscar Handlin offers an analysis that, if anything, has grown more pertinent over the past decade. In seventeen chapters, written with the brilliant assurance of a master craftsman, Handlin...