In that famous council of Salisbury of 1086, which was summoned immediately after the making of the _Domesday_ survey, we learn from the _Chronicle_ that there came to the King "all his witan, and all the landholders of substance in England whose vassals soever they were, and they all submitted to him, and became his men and swore oaths of allegiance that they would be faithful to him against all others." In this act have been seen the formal acceptance and date of the introduction of feudalism, but it has a very different meaning. The oath described is the oath of allegiance, combined with the act of homage, and obtained from all land-owners, whoever their feudal lord might be. It is a measure of precaution taken against the disintegrating power of feudalism, providing a direct tie between the sovereign and all freeholders which no inferior relation existing between them and the mesne lords would justify them in breaking. The real importance of the passage as bearing on the date of the introduction of feudal tenure is merely that it shows the system to have already become consolidated; all the land-owners of the kingdom had already become, somehow or other, vassals, either of the king or of some tenant under him. The lesson may be learned from the fact of the _Domesday_ survey. The introduction of such a system would necessarily have effects far wider than the mere modification of the law of tenure; it might be regarded as a means of consolidating and concentrating the whole machinery of government; legislation, taxation, judicature, and military defence were all capable of being organized on the feudal principle, and might have been so had the moral and political results been in harmony with the legal. But its tendency when applied to governmental machinery is disruptive. The great feature of the Conqueror's policy is his defeat of that tendency. Guarding against it he obtained recognition as the King of the nation and, so far as he could understand them and the attitude of the nation allowed, he maintained the usages of the nation. He kept up the popular institutions of the hundred court and the shire court. He confirmed the laws which had been in use in King Edward's days, with the additions which he himself made for the benefit, as he especially tells us, of the English.