"They grievously oppressed the poor people with building castles, and when they were built, filled them with wicked men, or rather devils, who seized both men and women who they imagined had any money, threw them into prison, and put them to more cruel tortures than the martyrs ever endured; they suffocated some in mud, and suspended others by the feet, or the head, or the thumbs, kindling fires below them. They squeezed the heads of some with knotted cords till they pierced their brains, while they threw others into dungeons swarming with serpents, snakes, and toads." The nation was mapped out, and the owners' names inscribed in the Doomsday Book. There were no unoccupied lands, and had the possessors been loyal and prudent, the sovereign would have had no lands, save his own private domains, to give away, nor would the industrious have been able to become tenants-in-fee. The alterations which have taken place in the possession of land since the composition of the Book of Doom, have been owing to the disloyalty or extravagance of the descendants of those then found in possession. Notwithstanding the vast loss of life in the contests following upon the invasion, the population of England increased from 2,150,000 in 1066, when William landed, to 3,350,000 in 1152, when the great-grandson of the Conqueror ascended the throne, and the first of the Plantagenets ruled in England. V. THE PLANTAGENETS. Whatever doubts may exist as to the influence of the Norman Conquest upon the mass of the people--the FREEMEN, the ceorls, and the serfs--there can be no doubt that its effect upon the higher classes was very great. It added to the existing FEUDALISM--the system of Baronage, with its concomitants of castellated residences filled with armed men. It led to frequent contests between neighboring lords, in which the liberty and rights of the FREEMEN were imperilled. It also eventuated in the formation of a distinct order-the peerage--and for a time the constitutional influence of the assembled people, the FOLC-GEMOT, was overborne.