We can hardly know for certain how strongly a scholarly discipline like history is able to affect politics and society, popular views and morals. Whatever its impact, it's influence also varies from epoch to epoch. During a few decades of the nineteenth century, historians were overwhelmed by so many questions and by such high expectations that there existed a large public space for them that they merely had to occupy. At other times, they have had to conquer this space first if they wanted to gain continued attention.

To be sure, a differentiation has to be introduced: any society has particular interests, e.g., in parts of its more recent past or in events that society sees as having something like a “mythical quality” about then, events that represent a major divide, that are deeply imprinted on that society's memory, that have attained a special role through tradition. There is, of course, always a space commanding wider public attention for these aspects. However, they are no more than small specks on the large canvas of history.