Wittgenstein had little to say directly on philosophy of history. But some pertinent remarks in _On Certainty_ have received little attention, apart from in Elizabeth Anscombe's short article on Hume and Julius Caesar. That article acknowledges its debt to _On Certainty,_ which responses to Anscombe have failed to recognise. Wittgenstein focuses in _On Certainty_ on apparently empirical propositions that seem to be certainties, but in fact form a rule-like framework for judging. I have called these _Moorean propositions_, and the present (...) article develops the suggestion that history as a discipline rests on them. The result is a qualification of empiricism in philosophy of history. (shrink)