Demographic and agricultural growth
It has been estimated that between 1000 and 1340 the population of Europe increased from about 38.5 million people to about 73.5 million, with the greatest proportional increase occurring in northern Europe, which trebled its population. The rate of growth was not so rapid as to create a crisis of overpopulation; it was linked to increased agricultural production, which yielded a sufficient amount of food per capita, permitted the expansion of cultivated land, and enabled some of the population to become nonagricultural workers, thereby creating a new division of labour and greater economic and cultural diversity.
The late Roman countryside and its patterns of life—a social pattern of landlords, free peasants, half-free workers, and slaves and an economic pattern of cultivated fields and orchards and the use of thick forests and their products—survived well into the Carolingian period. In the late 9th century, however, political circumstances led landholders to intensify the cultivation of their lands. They did this by reducing the status of formerly free peasants to dependent servitude and by slowly elevating the status of slaves to the same dependency, creating a rural society of serfs. The old Latin word for slave, servus, now came to designate a category of rural workers who were not chattel property but who were firmly bound to their lord’s land. The new word for slave, sclavus, was derived from the source of many slaves, the Slavic lands of the east.
During the 11th and 12th centuries the chief social distinction in western European society was that between the free and the unfree. For two centuries the status of serfdom was imposed on people whose ancestors had been free and who themselves would become free only when the rise of a money economy in the late 12th century made free, rent-paying peasants more economically attractive to lords than bound serfs. The aristocracy was able to accomplish this because of weakening royal power and generosity and because of its assumption of the bannum (“ban”), the old public and largely royal power to command and punish (now called “banal jurisdiction”). It announced its new claims by calling them “customs” and adjudicated them in local courts.
The aristocracy supervised the clearing of forest for the expansion of cereal cultivation but restricted the remaining forest to itself for hunting. It also forced its dependents to use its mills and local markets, to provide various labour services, and to settle more densely in the villages, which were slowly coordinated with an expanded system of parishes (local churches with lay patrons, to which peasants had to pay the tithe, or one-tenth of their produce). Serfdom was gradually eliminated in western Europe during the 13th and 14th centuries as a result of economic changes that made agricultural labour less financially advantageous to lords. During the same period, however, serfdom increased in eastern Europe, where it lasted until the 19th century.
The new stratification of society into the categories of free and unfree was accompanied by the transformation of the late Carolingian aristocratic family from a widespread association of both paternal and maternal relatives to a narrower lineage, in which paternal ancestry and paternal control of the disposition of inheritance dominated. Family memory restricted itself to a founding paternal ancestor, ignoring the line of maternal ancestors, and the new lineages identified themselves with a principal piece of property, from which they often took a family name. They also patronized religious establishments, which memorialized the families in prayers, enhanced their local prestige, and often provided them burial in their precincts.
The new lords of the land identified themselves primarily as warriors. Because new technologies of warfare, including heavy cavalry, were expensive, fighting men required substantial material resources as well as considerable leisure to train. The economic and political transformation of the countryside filled these two needs. The old armies of free men of different levels of wealth were replaced by new armies of specialist knights. The term knight (Latin miles) came into more frequent use to designate anyone who could satisfy the new military requirements, which included the wealthiest and most powerful lords as well as fighting men from far lower levels of society. The new order gradually developed its own ethos, reflected in the ideal of chivalry, the knight’s code of conduct. The distinction between free and unfree was reinforced by the distinction between those who fought, even at the lowest level, and those who could not. Those who functioned at the lowest level of military service worked hard to distinguish themselves from those who laboured in the fields.