Economic development is so far simply the object of economic history, which in turn is merely a part of universal history, only separated from the rest for purposes of exposition. Because of this fundamental dependence of the economic aspect of things on everything else, it is not possible to explain economic change by previous economic conditions alone. Therefore, just as describing the effects of the Counter Reformation upon Italian and Spanish painting always remains history of art, so describing the economic process remains economic history even where the true causation is largely non-economic. Economic leadership in particular must hence be distinguished from "invention". The entrepreneurial kind of leadership, as distinguished from other kinds of economic leadership such as we should expect to find in a primitive tribe or a communist society, is of course colored by the conditions peculiar to it.