undertook this expedition, he was advanced in age and very infirm. He suffered much from the gout, so that he was unable to travel by any ordinary conveyance, and was borne, accordingly, almost all the way upon a litter. He crossed the Channel with his army, and, leaving one of his sons in command in the south part of the island, he advanced with the other, at the head of an enormous force, determined to push boldly forward into the heart of Scotland, and to bring the war with the Picts and Scots to an effectual end.
He met, however, with very partial success. His soldiers became entangled in bogs and morasses; [page 28] they fell into ambuscades; they suffered every degree of privation and hardship for want of water and of food, and were continually entrapped by their enemies in situations where they had to fight in small numbers and at a great disadvantage. Then, too, the aged and feeble general was kept in a continual fever of anxiety and trouble by Bassianus, the son whom he had brought with him to the north. The dissoluteness and violence of his character were not changed by the change of scene. He formed plots and conspiracies against his father's authority; he raised mutinies in the army; he headed riots; and he was finally detected in a plan for actually assassinating his father. Severus, when he discovered this last enormity of wickedness, sent for his son to come to his imperial tent. He laid a naked sword before him, and then, after bitterly reproaching him with his undutiful and ungrateful conduct, he said, "If you wish to kill me, do it now. Here I stand, old, infirm, and helpless. You are young and strong, and can do it easily. I am ready. Strike the blow."
Of course Bassianus shrunk from his father's reproaches, and went away without committing the crime to which he was thus reproachfully [page 29] invited; but his character remained unchanged; and this constant trouble, added to all the other difficulties which Severus encountered, prevented his accomplishing his object of thoroughly conquering his northern foes. He made a sort of peace with them, and retiring south to the line of fortified posts which had been previously established, he determined to make it a fixed and certain boundary by building upon it a permanent wall. He put the whole force of his army upon the work, and in one or two years, as is said, he completed the structure. It is known in history as the Wall of Severus; and so solid, substantial, and permanent was the work, that the traces of it have not entirely disappeared to the present day.
The wall extended across the island, from the mouth of the Tyne, on the German Ocean, to the Solway Frith—nearly seventy miles. It was twelve feet high, and eight feet wide. It was faced with substantial masonry on both sides, the intermediate space being likewise filled in with stone. When it crossed bays or morasses, piles were driven to serve as a foundation. Of course, such a wall as this, by itself, would be no defense. It was to be garrisoned by soldiers, being intended, in fact, only as a [page 30] means to enable a smaller number of troops than would otherwise be necessary to guard the line. For these soldiers there were built great fortresses at intervals along the wall, wherever a situation was found favorable for such structures. These were called stations. The stations were occupied by garrisons of troops, and small towns of artificers and laborers soon sprung up around them. Between the stations, at smaller intervals, were other smaller fortresses called castles, intended as places of defense, and rallying points in case of an attack, but not for garrisons of any considerable number of men. Then, between the castles, at smaller intervals still, were turrets, used as watch-towers and posts for sentinels. Thus the whole line of the wall was every where defended by armed men. The whole number thus employed in the defense of this extraordinary rampart was said to be ten thousand. There was a broad, deep, and continuous ditch on the northern side of the wall, to make the impediment still greater for the enemy, and a spacious and well-constructed military road on the southern side, on which troops, stores, wagons, and baggage of every kind could be readily transported along the line, from one end to the other.
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The wall was a good defense as long as Roman soldiers remained to guard it. But in process of time—about two centuries after Severus's day—the Roman empire itself began to decline, even in the very seat and center of its power; and then, to preserve their own capital from destruction, the government were obliged to call their distant armies home. The wall was left to the Britons; but they could not defend it. The Picts and Scots, finding out the change, renewed their assaults. They battered down the castles; they made breaches here and there in the wall; they built vessels, and, passing round by sea across the mouth of the Solway Frith and of the River Tyne, they renewed their old incursions for plunder and destruction. The Britons, in extreme distress, sent again and again to recall the Romans to their aid, and they did, in fact, receive from them some occasional and temporary succor. At length, however, all hope of help from this quarter failed, and the Britons, finding their condition desperate, were compelled to resort to a desperate remedy, the nature of which will be explained in the next chapter.
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Chapter II.
The Anglo-Saxons.
Any one who will look around upon the families of his acquaintance will observe that family characteristics and resemblances prevail not only in respect to stature, form, expression of countenance, and other outward and bodily tokens, but also in regard to the constitutional temperaments and capacities of the soul. Sometimes we find a group in which high intellectual powers and great energy of action prevail for many successive generations, and in all the branches into which the original stock divides; in other cases, the hereditary tendency is to gentleness and harmlessness of character, with a full development of all the feelings and sensibilities of the soul. Others, again, exhibit congenital tendencies to great physical strength and hardihood, and to powers of muscular exertion and endurance. These differences, notwithstanding all the exceptions and irregularities connected with them, are obviously, where they exist, deeply seated and [page 35] permanent. They depend very slightly upon any mere external causes. They have, on the contrary, their foundation in some hidden principles connected with the origin of life, and with the mode of its transmission from parent to offspring, which the researches of philosophers have never yet been able to explore.
These same constitutional and congenital peculiarities which we see developing themselves all around us in families, mark, on a greater scale, the characteristics of the different nations of the earth, and in a degree much higher still, the several great and distinct races into which the whole human family seems to be divided. Physiologists consider that there are five of these great races, whose characteristics, mental as well as bodily, are distinctly, strongly, and permanently marked. These characteristics descend by hereditary succession from father to son, and though education and outward influences may modify them, they can not essentially change them. Compare, for example, the Indian and the African races, each of which has occupied for a thousand years a continent of its own, where they have been exposed to the same variety of climates, and as far as possible to the same general outward influences. How [page 36] entirely diverse from each other they are, not only in form, color, and other physical marks, but in all the tendencies and characteristics of the soul! One can no more be changed into the other, than a wolf, by being tamed and domesticated, can be made a dog, or a dog, by being driven into the forests, be transformed into a tiger. The difference is still greater between either of these races and the Caucasian race. This race might probably be called the European race, were it not that some Asiatic and some African nations have sprung from it, as the Persians, the Phœnicians, the Egyptians, the Carthaginians, and, in modern times, the Turks. All the nations of this race, whether European or African, have been distinguished by the same physical marks in the conformation of the head and the color of the skin, and still more by those traits of character—the intellect, the energy, the spirit of determination and pride—which, far from owing their existence to outward circumstances, have always, in all