Ave Roma Immortails, Volume 2 by F. Marion Crawford

We commonly speak of the nineteenth century as an age of superior civilization. The truth of the assertion depends on what civilization means, but there is no denying that more blood has been shed by civilized nations during the last one hundred and twenty years than in any equal period of the world's history. Anyone may realize the fact by simply recalling the great wars which have devastated the world since the American Revolution.

But the carnage was not uninterrupted. The record of death is divided in the midst by the thirty years of comparative peace which followed the battle of Waterloo and preceded the general revolution of 1848. Napoleon had harried the world, from Moscow to Cairo, from Vienna to Madrid, pouring blood upon blood, draining the world's veins dry, exhausting the destroying power of mankind in perpetual destruction. When he was gone, Europe was utterly worn out by his terrible energy, and collapsed suddenly in a state of universal nervous prostration. Then came the long peace, from 1815 to 1848.