An idea: perhaps the modern concept of the aesthetic predates and forms the precondition for the modern concept of culture. Let us assume that Lessing's Laocoon is a foundational text for modern aestheticism with its argument that each sense takes its own autonomous pleasure and finds its own capacity for cognition in different and heteronomous forms of art linked to the body through that sense (sculpture, painting, poetry, music). (Winkelmann is important here too no doubt especially his then famous description of the Apollo Belvedere, dripping with gayness). Then it is clear that Lessing's argument is analagous to the culturalist argument that each society has its own not wholly comensurable meaning system in and through which it expresses itself, that is, its own culture. The key text which joins these two modes of thought might be Herder's essay on Sculpture. (And behind Lessing's move ultimately lies Locke and the Molyneaux debate?)

Another idea: literature in 18thc Britain undergoes a transformation in its social functions. The most important moments or expressions of this transformation can be taken to be: Richardson's Pamela, Sterne's Tristam Shandy and Lyrical Ballads. What 'literature' means for a figure like John Nichols or to the Gentleman's Magazine comes to an end by about 1800: literature by then is predominantly 'interesting', increasingly fictional and involved in disseminating and taking advantage of the power of sympathetic imagination and a certain democratisation both of reception and topoi (Ranciere). It would be usual to connect this transformation to the increasing exposure of literature to the market over the period but that isn't the whole story. It is also a response to the legitimation crisis involved in the separation of church from state after 1688, a separation which involves some separation of the economy from society more generally (though this is really a post-1815 development). But at any rate the new literary function is based in the new formal social state relations of the post 1745 era. The real difficulty, though, is that the old literary formation also develops during the eighteenth-century: producing new kinds of literary knowedge and new literary forms, notably the Magazine itself. It might be possible to argue, I think, that the developed form of literary knowledge and the new post-sentimental literature join in poets like Keats and Browning.