There is no great event in modern history, or perhaps it may be said more broadly, none in all history, from its earliest records, less generally known, or more striking to the imagination, than the flight eastwards of a principal Tartar nation across the boundless _steppes_ of Asia in the latter half of the last century. The _terminus a quo_ of this flight, and the _terminus ad quem_, are equally magnificent; the mightiest of Christian thrones being the one, the mightiest of Pagan the other. And the grandeur of these two terminal objects, is harmoniously supported by the romantic circumstances of the flight. In the abruptness of its commencement, and the fierce velocity of its execution, we read an expression of the wild barbaric character of the agents. In the unity of purpose connecting this myriad of wills, and in the blind but unerring aim at a mark so remote, there is something which recalls to the mind those Almighty instincts that propel the migrations of the swallow, or the life-withering marches of the locust. Then again, in the gloomy vengeance of Russia and her vast artillery, which hung upon the rear and the skirts of the fugitive vassals, we are reminded of Miltonic images--such, for instance, as that of the solitary hand pursuing through desert spaces and through ancient chaos a rebellious host, and overtaking with volleying thunders those who believed themselves already within the security of darkness and of distance. We shall have occasion farther on to compare this event with other great national catastrophes as to the magnitude of the suffering. But it may also challenge a comparison with similar events under another relation, viz., as to its dramatic capabilities. Few cases, perhaps, in romance or history, can sustain a close collation with this as to the complexity of its separate interests. The great outline of the enterprise, taken in connection with the operative motives, hidden or avowed, and the religious sanctions under which it was pursued, give to the case a triple character: 1st, That of a conspiracy, with as close a unity in the incidents, and as much of a personal interest in the moving characters, with fine dramatic contrasts, as belongs to Venice Preserved, or to the Fiesco of Schiller. 2dly, That of a great military expedition offering the same romantic features of vast distances to be traversed, vast reverses to be sustained, untried routes, enemies obscurely ascertained, and hardships too vaguely prefigured, which mark the Egyptian expedition of Cambyses--the anabasis of the younger Cyrus, and the subsequent retreat of the ten thousand to the Black Sea--the Parthian expeditions of the Romans, especially those of Crassus and Julian--or (as more disastrous than any of them, and in point of space as well as in amount of forces, more extensive,) the Russian anabasis and katabasis of Napoleon. 3dly, That of a religious Exodus, authorized by an oracle venerated throughout many nations of Asia, an Exodus,