In Germany I first learned the true method, and at the same time, the most practicable ways and means of studying and teaching history. Amid a pleasant variety of academic courses by brilliant lecturers like Kuno Fischer, Zeller, Ernst Curtius, Grimm, Treitschke, Droysen, Du Bois Raymond, Lepsius, and others, I somehow felt a lack of educational unity and system. There was need of some backbone to unite the skeleton of human deeds and historic experiences. This I found at last in the teachings of my old master, Dr. J. C. Bluntschli, at Heidelberg. In his lecture courses on the State, on the Constitutional Law, on Politics and on the International Law of Modern Civilized States, I first began to realize that government and law are the real forces which bind society and the world together. I began to see that the true unity of the world's life is to be found in the succession of States, Empires, Federations, and in the International Relations, which are slowly leading to such great aggregations as the United States of America and the United States of Europe. In Germany I learned from a reading of Bluntschli's various writing, including many noble articles in his Staatsworterbuch, that there is such a thing as the World-State now in process of evolution. From the published records of the Institute of International Law, of which Dr. Bluntschli was the president, and from a study of the subjects of Arbitration and International Tribunals, I thought I could dimly discern the beginnings of that Parliament of Man, the Federation of the World, of which the Poet Tennyson sings in his Locksley Hall. When I came to Baltimore three ideas of study and teaching were uppermost in my mind: (1) the study of the origins of municipal life, in order to find out whether it was Roman or Germanic; (2) the study of the relations of Church and State, from their beginning down to the present, for I had learned to believe in Germany that the separation of civil from religious society is America's greatest contribution to the world's progress; (3) the continued study of art history for its own sake and as illustrating the history of civilization. Out of the first of these ideas, developed by a reading of the works of Sir Henry Maine, has grown my Historical Seminary and a long series of University Studies in Historical and Political Science (chiefly on Municipal, Economic and Institutional themes). Out of the second idea evolved successive courses of lectures on Church and State, or Religion and Government in the Ancient and Graeco-Roman World, together with my whole system of graduate instruction upon the Early History of Society, Greek and Roman Polities, Jewish and Church History, and certain modern States like Prussia and France. The third idea never had a good chance for development until recent years when I have fairly begun to realize my original conception of illustrating in concrete, artistic ways the progress of civilization.