According to its Google Ngram, the term 'post-traditional' arrives at the turn of the twentieth century, but only begins to be widely used after 1960, probably as a result of its appearance in a subtitle of a book by Robert Bellah, 1 after which its use has continued to increase geometrically, up to the present. There is a core problem with the term which is signalled by this citation pattern. It can be understood as a novel theoretical concept which applies to the last half of the twentieth century, telling us something about the meaning of our own time. The term, however, has a problematic relation to a much deeper, older and more pervasive set of distinctions, involving modernity and the larger trajectory of European society from the medieval period on, the Enlightenment, democratization, capitalism and industrialization, urbanism, and 'rationalization' and differentiation. It also followed, and resembled, a long-running discussion of the prospects for a new kind of society, based on a new or revised spiritual order or new values, that paralleled this discussion. Although there is a vague connection to the classical sociological literature, there is a sharp break between the 'posttraditional' literature and the 'spiritual order' and new values literature. The new literature neither engages nor cites it. Yet these literatures closely resemble one another, and share the same themes and much of the same anti-liberal, anti-individualist normative orientation.This poses a problem for writing an intellectual history. Why was there so little textual continuity or engagement with the earlier literature in the discussion of these topics? Did they identify something genuinely novel with the term, as they claimed? Or did they unwittingly reproduce the distinctions made in the past? These turn out to be less questions of intellectual history -though there is an important historical fact that bears on them -than questions about the concept itself. Does it capture something new? The question can't be answered without getting a clear understanding of the concept itself. In what follows, I will focus on explication, and