The nineteenth century, it is a commonplace to remark, witnessed a notable revival of nationalistic sentiment, the germs of which go back to the eighteenth, and the political consequences of which are in considerable part still outstanding. The emancipation of the Balkan States, the union of Italy, and the consolidation of Germany, were substantial, though incomplete, realizations of nationalism. The Germanization of Austria-Hungary, which had seemed inevitable, was brought to a halt by the national revival of Slav and Magyar. And today, not to mention the Irish situation, Eastern Europe is fairly alive with smaller nationalities seeking to gain or to maintain autonomous development. Nationalism, in spite of, or rather because of its being so largely a matter of sentiment, is the most active force in European politics. The dynastic system, certainly, is only a superficial relic of a past reality; loyalty to a dynasty, except as it is identified with nationalism, has lost its former significance. And on the other hand, a socialistic brotherhood which shall rise superior to the bounds of nationality is a dream of the future.