before, in the process of retrospection, we get back to a civilization which (in Europe at least) we ordinarily regard as Ancient. Again, in History, we distinguish commonly two provinces within the undoubted area of 'the Ancient, the Prehistoric and the Historic, the first comprising all the time to which human memory, as communicated by surviving literature, ran not, or, at least, not consciously, consistently and credibly. At the same time it is not implied that we can have no knowledge at all of the Prehistoric province. It may even be better known to us than parts of the Historic, through sure deduction from archæological evidence. But what we learn from archæological records is annalistic not historic, since such records have not passed through the transforming crucible of a human intelligence which reasons on events as effects of causes. The boundary between Prehistoric and Historic, however, depends too much on the subjectivity of individual historians and is too apt to vary with the progress of research to be a fixed moment. Nor can it be the same for all civilizations. As regards Egypt, for example, we have a body of literary tradition which can reasonably be called
