Anglo-Saxon Institutions. 449-1066 27 more and more shires and hence could not attend well to shire business and the meetings of the shire court. In the late Anglo-Saxon period, they were becoming a great landed nobility, and in the eleventh century, now known as earls,* they practically destroyed the country's unity and prepared the way for the Norman Conquest. This change in the ealdorman undoubtedly accounts for the rapid development in the tenth century of a lower, single-shire official—the sheriff. We hear of divers kinds of reeves from early times, among them, king's reeves, who seem mainly to have had charge of the king's landed interests; but the use of shire-reeves, that is, sheriffs, by the king was not at all general until this time. The sheriff was appointed by the king, and had very limited grants of land. Although there appeared in the office of sheriff the same non-official tendencies that affected the ealdor- man, and though he strove to enter into the ealdorman's dignity and power, yet, during the Anglo-Saxon period, these tendencies did not have an opportunity to develop far, and the sheriff remained substantially a royal official.2 The maintenance of such officials was the first effective reaching out by the central government to touch and in- fluence the local government. It was a hint, in Anglo- Saxon times, of the long process that did much to shape the government after the Norman Conquest. Ordinarily there was one sheriff for each shire; he convened the shire court, accounted for the king's share of the fines in the shire and hundred courts, assembled the militia at the king's command, and had general oversight of royal property in his shire. He was a link between the centre and the localities. In estimating the extent to which the king was able to make himself felt locally in the later Anglo-Saxon period, mention must be made of the king's peace, one of the most important of Anglo-Saxon beginnings. Persons or things 1 Owing to Danish influence, the word earl (from the Danish jarl) was substituted for ealdorman. It should not be confused with the earlier Anglo-Saxon eorl, which was a general word for the man of noble birth. 3 In a few cases the office of sheriff later became hereditary.