§4. Antiquities and History.--It is just as impossible to draw the boundary line between the subjects of Antiquities and History. The older history, it is true, concerned itself little with the private life of the people, almost solely with the rise and fall of dynasties. It told us of kings and generals, of the wars they waged, the victories they won, and the conquests they made. Then, in course of time, institutions took the place of dynasties and parties the place of heroes, and history traced the growth of great political ideas: such masterpieces as Thirlwall's and Grote's histories of Greece are largely constitutional histories. But changes in international relations affect the private life of a people as surely, if not as speedily, as they affect the machinery of government. You can not bring into contact, friendly or unfriendly, two different civilizations without a change in the peoples concerned, without altering their occupations, their ways of living, their very ideas of life and its purposes. These changes react in turn upon the temper and character of a people, they affect its capacity for self-government and the government of others, and in the course of time they bring about the movements of which even the older history took notice. Hence our recent histories give more and more space to the life of the common people, to the very matters, that is, that were mentioned in the first paragraph as belonging to Private Antiquities. This may be seen in such titles as these: Green's "History of the English People," McMaster's "History of the People of the United States." §5. On the other hand it is equally true that a knowledge of political history is necessary for the study of Private Antiquities. We shall find the Romans giving up certain ways of living and habits of thinking that seemed to have become fixed and characteristic. These changes we could not explain at all, if political history did not inform us that just before they took place the Romans had come into contact with the widely different ideas and opposing civilizations of other nations. The most important event of this sort was the introduction of Greek culture after the Punic wars, and to this we shall have to refer again and again. It follows from all this that students who have had even the most elementary course in Roman history have already some knowledge of Private Antiquities, and that those who have not studied the history of Rome at all will find very helpful the reading of even the briefest of our school histories.