"The Imperial Witenagemot was not a legislative assembly, in the strict sense of the term, for the whole Anglo-Saxon empire. Promulgating his edicts amidst his peers and prelates, the king uses the language of command; but the theoretical prerogative was modified by usage, and the practice of the constitution required that the law should be accepted by the legislatures (courts) of the several kingdoms. * * The 'Basileus' speaks in the tone of prerogative: Edgar does not merely recommend, he commands that the law shall be adopted by all the people, whether English, Danes, or Britons, in every part of his empire. Let this statute be observed, he continues, by Earl Oslac, and all the host who dwell under his government, and let it be transmitted by writ to the ealdormen of the other subordinate states. And yet, in defiance of this positive injunction, the laws of Edgar were not accepted in Mercia until the reign of Canute the Dane. It might be said that the course so adopted may have been an exception to the general rule; but in the scanty and imperfect annals of Anglo-Saxon legislation, we shall be able to find so many examples of similar proceedings, _that this mode of enactment must be considered as dictated by the constitution of the empire_. Edward was the supreme lord of the Northumbrians, but more than a century elapsed before they obeyed his decrees. The laws of the glorious Athelstane had no effect in Kent, (county,) the dependent appanage of his crown, until sanctioned by the _Witan_ of the _shire_ (county court). And the power of Canute himself, the 'King of all England,' does not seem to have compelled the Northumbrians to receive his code, until the reign of the Confessor, when such acceptance became a part of the compact upon the accession of a new earl.