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851–892]
ENGLISH HISTORY
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the other realms. The defence was often, if not always, successful; and once at least (at Aclea in 851) Æthelwulf exterminated a whole Danish army with “the greatest slaughter among the heathen host that had been heard of down to that day,” as the Anglo-Saxon chronicler is careful to record. But though he might ward off blows from his own realm, he was helpless to aid Mercia or East Anglia, and still more the distant Northumbria.

It was not, however, till after Æthelwulf’s death that the attack of the vikings developed its full strength. The fifteen years (856–871) that were covered by the reigns of his three short-lived sons, Æthelbald, Æthelbert and Æthelred, were the most miserable that England was to see. Assembling in greater and ever greater confederacies, the Danes fell upon the northern kingdoms, no longer merely to harry but to conquer and occupy them. A league of many sea-kings which called itself the “great army” slew the last two sovereigns of Northumbria and stormed York in 867. Some of the victors settled down there to lord it over the half-exterminated English population. The rest continued their advance southward. East Anglia was conquered in 870; its last king, Edmund, having been defeated and taken prisoner, the vikings shot him to death with arrows because he would not worship their gods. His realm was annexed and partly settled by the conquerors. The fate of Mercia was hardly better: its king, Burgred, by constant payment of tribute, bought off the invaders for a space, but the eastern half of his realm was reduced to a wilderness.

Practically masters of all that lay north of Thames, the “great army” next moved against Wessex, the only quarter where a vigorous resistance was still maintained against them, though its capital, Winchester, had been sacked in 864. Under two kings named Halfdan and Bacsceg, and six earls, they seized Reading and began to harry Berkshire, Surrey and Hampshire. King Æthelred, the third son of Æthelwulf, came out against them, with his young brother Alfred and all the levies of Wessex. In the year 871 these two gallant kinsmen fought no less than six pitched battles against the invaders. Some were victories—notably the fight of Ashdown, where Alfred first won his name as a soldier—but the English failed to capture the fortified camps of the vikings at Reading, and were finally beaten at Marten (“Maeretun”) near Bedwyn, where Æthelred was mortally wounded.

He left young sons, but the men of Wessex crowned Alfred king, because they needed a grown man to lead them in their desperate campaigning. Yet his reign opened inauspiciously: defeated near Wilton, he offered in despair to pay the vikings to depart. He must have Alfred the Great. known, from the experience of Mercian, Northumbrian and Frankish kings, that such blackmail only bought a short respite, but the condition of his realm was such that even a moderate time for reorganization might prove valuable. The enemy had suffered so much in the “year of the six battles” that they held off for some space from Wessex, seeking easier prey on the continent and in northern England. In 874 they harried Mercia so cruelly that King Burgred fled in despair to Rome; the victors divided up his realm, taking the eastern half for themselves, and establishing in it a confederacy, whose jarls occupied the “five boroughs” of Stamford, Lincoln, Derby, Nottingham and Leicester. But the western half they handed over to “an unwise thegn named Ceolwulf,” who bought for a short space the precarious title of king by paying great tribute.

Alfred employed the four years of peace, which he had bought in 871, in the endeavour to strengthen his realm against the inevitable return of the raiders. His wisdom was shown by the fact that he concentrated his attention on the one device which must evidently prove effective for defence, if only he were given time to perfect it—the building of a national navy. He began to lay down galleys and “long ships,” and hired “pirates”—renegade vikings no doubt—to train crews for him and to teach his men seamanship. The scheme, however, was only partly completed when in 876 three Danish kings entered Wessex and resumed the war. But Alfred blockaded them first in Wareham and then in Exeter. The fleet which was coming to carry them off, or to bring them reinforcements, fought an indecisive engagement with the English ships, and was wrecked immediately after on the cliffs of the Isle of Purbeck, where more than 100 galleys and all their crews perished. On hearing of this disaster the vikings in Exeter surrendered the place on being granted a free departure.

Yet within a few months of this successful campaign Alfred was attacked at midwinter by the main Danish army under King Guthrum. He was apparently taken by surprise by an assault at such an unusual time of the year, and was forced to escape with his military household to the isle of Athelney among the marshes of the Parrett. The invaders harried Wiltshire and Hampshire at their leisure, and vainly thought that Wessex was at last subdued. But with the spring the English rallied: a Danish force was cut to pieces before Easter by the men of Devonshire. A few weeks later Alfred had issued from Athelney, had collected a large army in Selwood, and went out to meet the enemy in the open field. He beat them at Edington in Wiltshire, blockaded them in their great camp at Chippenham, and in fourteen days starved them into surrender. The terms were that they should give hostages, that they should depart for ever from Wessex, and that their king Guthrum should do homage to Alfred as overlord, and submit to be baptized, with thirty of his chiefs. Not only were all these conditions punctually fulfilled, but (what is more astonishing) the Danes had been so thoroughly cured of any desire to try their luck against the great king that they left him practically unmolested for fourteen years (878–892). King Guthrum settled down as a Christian sovereign in East Anglia, with the bulk of the host that had capitulated at Chippenham. Of the rest of the invaders one section established a petty kingdom in Yorkshire, but those in the Midlands were subject to no common sovereign but lived in a loose confederacy under the jarls of the “Five Boroughs” already named above. The boundary between English and Danes established by the peace of 878 is not perfectly ascertainable, but a document of