In primitive or archaic society as households grow unwieldy there is a partition which involves partition of property as well as of the household. Indeed in Hindu law partition is thought of as partition of the household primarily and as partition of property only incidentally. Also in Roman law the old action for partition is called the action for partitioning the household. Thus, at first, partition is a splitting up of an overgrown household into smaller households. Presently, however, it tends to become a division of a household among individuals. Thus in Roman law on the death of the head of a household each of his sons in his power at his death became a _pater familias_ and could bring a proceeding to partition the inheritance although he might be the sole member of the household of which he was the head. In this way individual ownership became the normal condition instead of household ownership. In Hindu law household ownership is still regarded as the normal condition. But with changes in society and the rise of commercial and industrial activity, a change has been taking place rapidly which is making individual ownership the normal type in fact, if not in legal theory. Self-acquired property, the second disintegrating agency, may be seen in Hindu law and also in Roman law. In Hindu law all property is normally and _prima facie_ household property. The burden is upon anyone who claims to be the individual owner of anything. But an exceptional class of property is recognized which is called self-acquired property. Such property might be acquired by "valor," that is, by leaving the household and going into military service and thus earning or acquiring by way of booty, or by "learning," that is, by withdrawing from the household and devoting oneself to study and thus acquiring through the gifts of the pious or the exercise of knowledge. A third form was recognized later, namely, property acquired through the use of self-acquired property. In the same way in Roman law the son in the household, even if of full age, normally had no property. Legally all property acquired by any member of the household was the property of the head of the household as the legal symbol and representative thereof. Later the head of the household ceases to be thought of as symbolizing the household and the property was regarded legally as his individual property. But Roman law recognized certain kinds of property which sons in the household might hold as their own. The first of these was property earned or acquired by the son in military service. Later property earned in the service of the state was added. Finally it came to be law that property acquired otherwise than through use of the patrimony of the household might be held by the son individually though he remained legally under the power of the head.