This is not the place for an extended history of the services which these walls, and the Empire of which they were the citadel, rendered as the shield of European civilisation. Enough to remember that the dread of them dissuaded Attila and his Huns from delivering an attack upon the city, although he approached as near to Constantinople as Athyras, now Buyuk Tchekmedjé, some twelve miles distant. Doubtless they often restrained the wrath also of other barbarous hordes. In vain did the Avars, in 627, beat against these walls between Top Kapou (Gate of S. Romanus) and the Gate of Adrianople (Charisius). In vain did the Arabs invest these bulwarks from the spring to the autumn of four successive years (673-677). As unsuccessful was the second siege of the city by the same foe for twelve months (717-718). These fortifications defied the Bulgarians both under Crum in 813 and under Symeon in 924. In 1203 they repelled the valour of the knights and barons engaged in the Fourth Crusade. They mocked the assaults of Sultan Murad, in 1422. And when they succumbed, at length, to the artillery of Sultan Mehemet in 1453, it was because their defenders were few and divided, and their assailants were armed with weapons before which ramparts of stone, alike in the West and in the East, crumbled to pieces, and old systems of society were swept away. The battles fought directly before the walls of New Rome do not, indeed, give us the complete story of her warfare “per benefitio de la Christiantade et per honor del mundo.” On eight occasions, at least, the armies of the East Roman Empire were drawn up on the plain outside the Golden Gate to celebrate victories won on distant battlefields, and to enter the triumphal Gate of the capital with prisoners, standards, and spoils captured on hostile territory. To the shouts “Glory to God, who has restored to us our sovereign crowned with victory! Glory to God who has magnified you Emperor of the Romans! Glory to Thee All-Holy Trinity, for we behold our Emperor victorious! Welcome Victor! most valiant sovereign!” the triumphal car of Heraclius drove into the city, after his splendid campaign of seven years against the Persians; the campaign which brought the long struggle between Europe and Persia since 492 B.C. to an end. The same shouts rent the air, when Constantine Copronymus returned from the defeat of the Bulgarians, and twice again, when Basil II., by two murderous wars with that people, earned the title, the Slayer of Bulgarians, Bulgaroktonos. Theophilus, on two occasions, and Basil I. passed through the Golden Gate as victors over the Saracens. And Zimisces received the same honour for beating back the Russians under Swiatoslaf. These were great days in the history of the city, nay, of mankind, for they stayed the waves of barbarism that threatened to overwhelm the civilised world. But after all, it is when the enemy stands arrayed before the very capital of the Empire, and delivers