"Elton may well be right to stress the pragmatic element in the notion of explanation, an element perhaps best captured by saying that good explanations are those which succeed in removing puzzles about the occurrence of facts or events. But it hardly follows that good historical explanations will consist of anything that practising historians may care to offer us in the way of attempting to resolve such puzzles. Historical explanations cannot be immune from assessment as explanations, and the question of what properly counts as an explanation is inescapably a philosophical one. The question cannot be what historians say; the question must be whether what they say makes any sense."