Greenland was colonised from Iceland, and by the end of the same century christianity was introduced into Iceland, but made at first little difference in the arrangements of society. In the thirteenth century, disputes over the power and jurisdiction of the clergy led, with other matters, to civil war, ending in submission to Norway, and the breaking down of all the native great houses. Although life under the commonwealth had been rough and irregular, it had been free and varied, breeding heroes and men of mark; but the “law and order” now brought in left all on a dead level of peasant proprietorship, without room for hope or opening for ambition. An alien governor ruled the island, which was divided under him into local counties, administered by sheriffs appointed by the king of Norway. The Al-thing was replaced by a royal court, the local work of the local things was taken by a subordinate of the sheriff, and things, quarter-courts, trial by jury, and all the rest, were swept away to make room for these “improvements,” which have lasted with few changes into this century. In 1380 the island passed under the rule of Denmark, and so continues. During the fifteenth century the English trade was the only link between Iceland and the outer world; the Danish government weakened that link as much as it could, and sought to shut in and monopolise everything Icelandic; under the deadening effect of such rule it is no marvel that everything found a lower level, and many things went out of existence for lack of use. In the sixteenth century there is little to record but the Reformation,