A little city, founded by robbers on the banks of the Tiber, rises gradually into importance, although the great cities of the East are scarcely conscious of its existence. Its early struggles simply arrest the attention, and excite the jealousy, of the neighboring nations. The citizens of this little state are warriors, and, either for defense or glory, they subdue one after another the cities of Latium and Etruria, then the whole of Italy, and finally the old monarchies and empires of the world. In two hundred and fifty years the citizens have become nobles, and a great aristocracy is founded, which lasts eight hundred years. Their aggressive policy and unbounded ambition involve the whole world in war, which does not cease until all the nations known to the Greeks acknowledge their sway. Everywhere Roman laws, language, and institutions spread. A vast empire arises, larger than the Assyrian and the Macedonian combined, — a universal empire, — a great wonder and mystery, having all the grandeur of a providential event. It becomes too great to be governed by an oligarchy of nobles. Civil wars create an imperator, who, uniting in himself all the great offices of state, and sustained by the conquering legions, rules from East to West and from North to South, with absolute and undivided sovereignty. The Caesars reach the summit of human greatness and power, and the city of Romulus becomes the haughty mistress of the world. The emperor is worshiped as a deity, and the proud metropolis calls herself eternal. An empire is established by force of arms and by a uniform policy, such as this world has not seen before or since.