But the tenure here described existed only among the comparatively rich and great. When the last feudal division had been accomplished, when the chief had made his last grant to his captains and the soil was divided among them, there still remained by far the larger part of the population which owed no feudal duty and held no feudal estate. The common soldiers of the invading army, the native people of the conquered country and their descendants, inextricably mixed together, remained upon the soil and cultivated it as free tenants, or as serfs. They paid for the use of the land on which they lived in money or in a share of the crops, or in services. They acknowledged the title of the feudal lords over them, and while struggling to make good bargains with their masters, they seldom set up a claim to equality, or to independence. The peasants came to think it the natural and divinely appointed order of things that they should obey and serve their lords, with a partial obedience and a limited service. To ask why they were content so to serve, would be to open one of the greatest problems of history. Whatever the reason, over a large part of the world, and through the greater part of historical time, men have consented to obey other men whom they have not selected, and have generally preferred the hereditary principle to any other in determining to whom they would look up as their rulers. So the French peasants and their lords went on for centuries, living side by side, rendering each other mutual services, sometimes quarreling and sometimes making bargains. The peasants were called on for military service, but they and their families took refuge in the lord's castle when the frequent wars swept over the land. The mill, whose rough machinery was still an improvement on the rude hand-mill, or on the yet more primitive mortar and pestle; the oven where the peasant could bake his bread without lighting a fire on his own hearth, after the toil of the long summer's day; the bull of famous breed in all the country-side, were the lord's, and all his tenants must use them and pay for them, at rates fixed by immemorial custom, or perhaps by some long forgotten bargain, made when these conveniences were first furnished to the dwellers in the land. The lord led his peasants to battle, he protected them from the inhabitants of the next valley, he decided their differences in his court, where the more considerable of his tenants sat beside him; he governed his people, well or ill, according to his character, but on the whole to their reasonable satisfaction. His government, such as it might be, was their only refuge from anarchy. The lord was governed, not very strictly, by a greater lord, who in his turn owed duty to a greater than he; until, after one or more steps, came the king, or overlord of the land.