The history of childhood has been a topic of interest in social history since the highly influential book Centuries of Childhood, published by French historian Philippe Ariès in 1960. He argued that "childhood" is a concept created by modern society. Ariès studied paintings, gravestones, furniture, and school records and found that before the 17th-century, children were represented as mini-adults.
Other scholars have emphasized that medieval and early modern child rearing was not indifferent, negligent, and brutal. Stressing the context of pre-industrial poverty and high infant mortality (with a third or more of the babies dying), actual child-rearing practices represented appropriate behavior in the circumstances. He points to extensive parental care during sickness, and to grief at death, sacrifices by parents to maximize child welfare, and a wide cult of childhood in religious practice.
Historians had assumed that traditional families in the preindustrial era involved the extended family, with grandparent, parents, children and perhaps some other relatives all living together and ruled by an elderly patriarch. There were examples of this in the Balkans—and in aristocratic families. However, the typical pattern in Western Europe was the much simpler nuclear family of husband, wife and their children (and perhaps a servant, who might well be a relative). Children were often temporarily sent off as servants to relatives in need of help.
In medieval Europe there was a model of distinct stages of life, which demarcated when childhood began and ended. A new baby was a notable event. Nobles immediately started thinking of a marriage arrangement that would benefit the family. Birthdays were not major events as the children celebrated their saints' day after whom they were named. Church law and common law regarded children as equal to adults for some purposes and distinct for other purposes.
Education in the sense of training was the exclusive function of families for the vast majority of children until the 19th century. In the Middle Ages the major cathedrals operated education programs for small numbers of teenage boys designed to produce priests. Universities started to appear to train physicians, lawyers, and government officials, and (mostly) priests. The first universities appeared around 1100; - the University of Bologna in 1088, the University of Paris in 1150 and the Oxford in 1167. Students entered as young as 13 and stayed for 6 to 12 years.