Starting from the recent return in sociology of law to considering the "community" to be the expression and the vehicle of individual and collective "identity", this article identifies a gradual transition from the focus on the traditional Western communitas to the rise of new models of community. More generally, it questions what the substantial nucleus of the traditional conception of community actually was and what ist current destiny is. From the Greek polis to the dawn of modernity, the Western notion of community has at least two essential features. On the one hand, it rests primarily on the category of "rooting" and, as such, can be defined as a "rooted community" (or a material one). On the other hand, it contains a structural diale...