The theory now generally accepted that the origin of trial by jury must be sought in procedure introduced by the Norman Dukes and not in any form of popular Anglo-Saxon institutions is ably maintained by Pollock and Maitland, I. 119, and by the late Professor J. B. Thayer, _Evidence_, p. 7. Undoubtedly their conclusions are in the main correct; but in their natural desire to remove misconceptions, they are possibly guilty of some slight exaggeration. Trial by jury may have had more than one root, and a full appreciation of the value of the Norman contribution need not lead to the total neglect of the Anglo-Saxon one. Accepted conclusions in this respect might profitably be supplemented by the opinions of Dr. Hannis Taylor, _English Constitution_, I. 308 and I. 323. ----- The old English institution of the frithborh—the practice of binding together little groups of neighbours for preservation of the peace—and the custom of sending representatives of the villages to the Hundred Courts, had alike accustomed the natives to corporate action and formed in some sort precedents for what their Norman masters compelled them to do, namely, to give their evidence on local matters jointly and on oath. Further, one form of the jury—the jury of accusation—is clearly foreshadowed (in spite of the complete breach of continuity in the intervening period) by the directions given to the twelve senior thegns of each Wapentake by a well-known law of Ethelred. Yet the credit of establishing the jury system as a fundamental institution in England is undoubtedly due to the Norman and Angevin kings, although they acted in their own interests and not in those of their oppressed subjects, and although they had no clear vision of the ultimate consequences of what they did. The uses to which the _Inquisitio_ was put by William and his sons in framing _Domesday Book_, collecting information about existing laws, and dispensing justice, have already been discussed.[233] ----- Footnote 233: See _supra_, pp. 105-6. ----- It was reserved for Henry II. to start the institution on a further career of development; he it was who thus laid the foundations of the modern jury system. Strangely enough, he did this not merely in one of its forms, but in all three of them.