A like wide diversity in fact may be covered in the statement that a civilization has "died out." The nationality and culture of the wonderful city-builders of the lower Mesopotamian Plain have completely disappeared, and, though doubtless certain influences dating therefrom are still at work, they are in such changed and hidden form as to be unrecognizable. But the disappearance of the Roman Empire was of no such character. There was complete change, far-reaching transformation, and at one period a violent dislocation; but it would not be correct to speak either of the blood or the culture of Old Rome as extinct. We are not yet in a position to dogmatize as to the permanence or evanescence of the various strains of blood that go to make up every civilized nationality; but it is reasonably certain that the blood of the old Roman still flows through the veins of the modern Italian; and though there has been much intermixture, from many different foreign sources--from foreign conquerors and from foreign slaves--yet it is probable that the Italian type of to-day finds its dominant ancestral type in the ancient Latin. As for the culture, the civilization of Rome, this is even more true. It has suffered a complete transformation, partly by natural growth, partly by absorption of totally alien elements, such as a Semitic religion, and certain Teutonic governmental and social customs; but the process was not one of extinction, but one of growth and transformation, both from within and by the accretion of outside elements. In France and Spain the inheritance of Latin blood is small; but the Roman culture which was forced on those countries has been tenaciously retained by them, throughout all their subsequent ethnical and political changes, as the basis on which their civilizations have been built. Moreover, the permanent spreading of Roman influence was not limited to Europe. It has extended to and over half of that New World which was not even dreamed of during the thousand years of brilliant life between the birth and the death of Pagan Rome. This New World was discovered by one Italian, and its mainland first reached and named by another; and in it, over a territory many times the size of Trajan's empire, the Spanish, French, and Portuguese adventurers founded, beside the St. Lawrence and the Amazon, along the flanks of the Andes and in the shadow of the snow-capped volcanoes of Mexico, from the Rio Grande to the Straits of Magellan, communities, now flourishing and growing apace, which in speech and culture, and even as regards one strain in their blood, are the lineal heirs of the ancient Latin civilization. When we speak of the disappearance, the passing away, of ancient Babylon or Nineveh, and of ancient Rome, we are using the same terms to describe totally different phenomena.