The Danes were a brave and unscrupulous race, inhabiting not only Denmark, but also Norway. Bound by a limited territory, in a climate where population rapidly increases, it is not to be wondered at that Denmark and Norway were overstocked with inhabitants, and, consequently, forced to send away large colonies. Their natural inclination to a sea life made these exiles readily abandon their country; and the great booty the first adventurers gained tempted the richest and most powerful of their countrymen to urge their fortune in the same manner; to which end they entered into associations, and fitted out large fleets to seek and ravage foreign countries. These associations were much of the same nature with those formed in later times by the corsairs of Barbary; and they became so entirely devoted to this mode of life, that very considerable fleets were put to sea. They had the authority and example of their highest leaders, who occasionally commanded them in person, for what they did. These leaders were known by the name of Sea-kings. Their fleets made much devastation in several parts of Europe, particularly France, England, and the Low Countries. In France they were called Normans--that is, men of the north; but in England they were generally styled Danes. There is no doubt that the Swedes very often joined with the Danes in their piratical expeditions; and it appears that the Frieslanders also were concerned with them in ravaging the coasts of France and England. Egbert died in 839, after having reigned thirty-seven years, during the last ten as sole monarch of England. He was succeeded by his son Ethelwulf, in whose reign the ravages of the Danes became yet more frequent. In a great battle fought at Charmouth the English were once more defeated by their fierce enemy, who retired to their own country again with the spoils they had collected, without attempting any settlement. The Danes now seldom failed to visit England yearly for the sake of plunder. In 845, the Aldermen Enulph and Osric, aided by Bishop Alstan, obtained a considerable victory over them. In 851, the barbarians landed again on the coast of Wessex, where they plundered the country, but were met by Ethelwulf's general, the Alderman Ceorl, who defeated them at Wembury with great slaughter. Shortly afterwards, Athelstan, the King of Kent, encountered them upon their own element, and succeeded in capturing nine of their ships. Next year the Danes sailed up the Thames with 300 vessels, and pillaged London, after which they marched into Mercia, and would have overrun all England if the preparations of Ethelwulf had not deterred them. They re-passed the Thames, and were defeated at Okely, in Surrey. The year 855 is an important one, for the Danes then wintered in England for the first time, selecting the Isle of Sheppey for their camp.