convulsions and disorders of the Dark Ages, when at last daylight fell again on the British Island, she awoke to a world also profoundly changed, but devoid neither of form nor majesty. There was even a gentler breeze in the air. The fervour of the converted heathen brought in its train mischiefs which opened new calamities. The Church was bound by its spirit to inculcate mildness and mercy. It was led by zeal and by its interests to fortify in every way the structure of its own power. The humility and faith of the descendants of the invaders soon exposed them, in their human frailty, to an organised exploitation which during the sixth and seventh centuries led in many countries to an engrossment by the Church of treasure and lands out of all proportion to its capacity to control events. We see, then, Christendom pious but froward; spiritually united, but a prey to worldly feuds; in a state of grace, but by no means free from ambition. Upon this revived, convalescent, loosely-knit society there now fell two blasting external assaults. The first came from the East. In Arabia Mahomet unfurled the martial and sacred standards of Islam. His celebrated escape from Mecca to Medina, called the Hejira, or emigration, from which the Moslem era dates, took place in 622. During the decades that followed, Mahomet and his successors, the Caliphs, made themselves masters of all Arabia, Persia, much of the Byzantine Empire, and the whole North African shore. At the beginning of the next century, Islam crossed the Straits of Gibraltar and prevailed in Spain, whence it was not finally to be dislodged for nearly eight hundred years. At one moment France, too, seemed about to succumb, but the Arabs were beaten back by Charles Martel, grandfather of Charlemagne, in 732 at Poitiers. Thus, all the way from Mecca, the power of Islam came almost to within striking distance of these islands.
For Britain, however, was reserved the second invading wave. It came from the North. In Scandinavia the Vikings fitted out their long-boats for sea. This double assault by Arab infidels and Nordic pirates distracted the weakened life of Europe for ten generations. It was not until the eleventh century that the steel-clad feudalism of medieval Christendom, itself consisting largely of the converted descendants of the Vikings, assigned limits to the Arab conquests, and established at the side of the Christian Church ample and effective military power.  Measure for measure, what the Saxon pirates had given to the Britons was meted out to the English after the lapse of four hundred years. In the eighth century a vehement manifestation of conquering energy appeared in Scandinavia. Norway, Sweden, and Denmark threw up bands of formidable fighting men who, in addition to all their other martial qualities, were the hardy rovers of the sea. The causes which led to this racial ebullition were the spontaneous growth of their strength and population, the thirst for adventure, and the complications of dynastic quarrels. There was here no question of the Danes or Norsemen being driven westward by new pressures from the steppes of Asia. They moved of their own accord. Their prowess was amazing. One current of marauding vigour struck southwards from Sweden, and not only reached Constantinople, but left behind it potent germs which across the centuries influenced European Russia. Another contingent sailed in their long-boats from Norway to the Mediterranean, harried all the shores of the inland sea, and were with difficulty repulsed by the Arab kingdoms of Spain and the north coast of Africa. The third far-ranging impulse carried the Scandinavian buccaneers to the British Isles, to Normandy, to Iceland, and presently across the Atlantic Ocean to the American continent.
The relations between the Danes and the Norwegians were tangled and varying. Sometimes they raided in collusion; sometimes they fought each other in desperate battles; but to Saxon England they presented themselves in the common guise of a merciless scourge. They were incredibly cruel. Though not cannibals, they were accustomed to cook their feasts of victory in cauldrons placed upon, or on spits stuck in, the bodies of their vanquished enemies. When, after a battle in Ireland between Northmen and Danes, the local Irish inhabitants—themselves none too particular—expressed horror at this disgusting habit, and, being neutral, asked them why they did it, they received the answer, “Why not? They would do it to us if they won.” It was said of these Scandinavian hunters that they never wept for their sins, nor for the death of their friends. It is certain however that in many places where the raiding war-bands settled down they soon developed luxurious habits. They took baths. They wore silken robes. Their ships carried tents and beds for use on shore. Their war-chiefs in every land into which they penetrated practised polygamy, and in the East adopted quite readily the harem system. One conquering leader was credited with possessing no fewer than eight hundred concubines; but this was probably a Biblical illustration. When Limerick was captured from them in the year 936 the Irish were staggered by the beauty of the womenfolk already in the hands of the marauders, and by the mass of silks and embroideries with which they were decked. No doubt they recovered their poise before long.  The soul of the Vikings lay in the long-ship. They had evolved, and now, in the eighth and ninth centuries, carried to perfection, a vessel which by its shallow draught could sail far up rivers, or anchor in innumerable creeks and bays, and which by its beautiful lines and suppleness of construction could ride out the fiercest storms of the Atlantic Ocean.
We are singularly well informed about these ships. Half a dozen have been dug up almost intact. The most famous was unearthed at Gokstad, in Norway, in 1880, from a tumulus. It is almost complete, even to the cooking-pots and draught-boards of the sailors. It was remeasured with precision in 1944 in spite of other distractions. This ship was of the medium size, 76 feet 6 inches from stem to stern, 17 feet 6 inches beam, and drawing only 2 feet 9 inches amidships. She was clinker-built of sixteen strakes a side of solid oak planks, fastened with tree-nails and iron bolts, and caulked with cord of plaited animal-hair. Her planks fastened to the ribs with bast ties gave the framework great elasticity. She had a deck of loose unnailed boards, but no doubt her stores were contained in lockers which have perished. Her mast was stepped in a huge solid block, which, says Professor Collingwood (whose description I have revised to date), was so cunningly supported “that while the mast stands steady and firm there is no strain on the light elastic frame of the ship.” She had sixteen oars a side, varying in length between 17 and 19 feet; the longer oars were used at the prow and stern, where the gunwale was higher above the water-line; they were all beautifully shaped, and passed through circular rowlocks cut in the main strake, which were neatly fitted with shutters that closed when the oars were shipped. Her rudder, stepped to the starboard quarter, was a large, short oar of cricket-bat shape, fitted with a movable tiller, and fastened to the ship by an ingenious contrivance which gave the blade full play. The mast, 40 feet high, had a long, heavy yard with a square sail. She could carry a smaller boat or dinghy, three of which were discovered with her. The Gokstad ship would carry a crew of fifty, and if necessary another thirty warriors or captives, in all weathers, for a month.
Such was the vessel which, in many different sizes, bore the Vikings to the plunder of the civilised world—to the assault of Constantinople, to the siege of Paris, to the foundation of Dublin, and the discovery of America. Its picture rises before us vivid and bright: the finely carved, dragon-shaped prow;the high, curving stern; the long row of shields, black and yellow alternately, ranged along the sides; the gleam of steel; the scent of murder. The long-ships in which the great ocean voyages were made were of somewhat stouter build, with a higher free-board; but the Gokstad model was reproduced in 1892 and navigated by a Norwegian crew across the Atlantic in four weeks.
Yet this superb instrument of sea-power would have been useless without the men who handled it. All were volunteers. Parties were formed under leaders of marked ability. In the sagas we read of crews of “champions, or merry men”: a ship’s company picked no doubt from many applicants, “as good at the helm or oar as they were with the sword.” There were strict regulations, or early “Articles of War,” governing these crews once they had joined. Men were taken between the ages of sixteen and sixty, but none without a trial of his strength and activity. No feud or old quarrel must be taken up while afloat or on service. No woman was allowed on board. News was to be reported to the captain alone. All taken in war was to be brought to the pile or stake, and there sold and divided according to rule. This war booty was personal; that is to say, it was not part of the property which passed by Scandinavian law to a man’s kindred. He was entitled to have it buried with him.
“With anything like equal numbers,” says Oman, “the Vikings were always able to hold their own, but when the whole countryside had been raised, and the men of many shires came swarming up against the raiders, they had to beware lest they might be crushed by numbers.” It was only when a fleet of very exceptional strength