temple communities to his own followers, thus overriding the age-old local basis of land rights. No conqueror could rely on the loyalty of the defeated cities, and it seems as if Sargon built up a personal following, perhaps exploiting kinship ties in the wide sense of tribal loyalty. Under his grandson Naramsin, governors of cities styled themselves “slave of the king.” Sargon also seems to have made a bid for the loyalty of the common people. This appears from a change in the formula for oaths.[126] The name of the king could now be invoked alongside the gods. This had a definite practical significance: if an agreement thus sworn to was broken, or if perjury was committed, the king was involved and would make it his business to uphold the right of the injured party. This was of the utmost importance, for the judge had originally been merely an arbitrator, whose main task was the reconciliation or satisfying of both parties. He had had no power to enforce his decisions; and if a man without personal prestige did not have a powerful patron to “overshadow him,”[127] there was little chance of his finding satisfaction in court. The new oath formula put the king in the position of the patron of all who swore by his name; in practice he constituted a court of appeal for the whole land, independent of the cities—a step of the greatest importance in the development of Mesopotamian law and society. Another step towards unification of the country was the introduction of a uniform calendar. Hitherto each city had had its own, with its own month names and festivals. Finally, the existence of a single monarch, who styled himself “King of the Four Quarters of the World,” served as a perpetual remainder of the unity of the state.[128]