It is not too much to say that over the last twenty years the history of working-class housing in the nineteenth century has been transformed. Many older historians, of course, took it for granted that the quality of houses built to meet the needs of the fast-growing urban population was uniformly bad, a testimony to the avarice of builders and landlords alike. Beliefs of this kind owed much to Engels, and to the Hammonds writing earlier this century about the life of the town labourter. One of the first suggestions that these views were really an over-simplified description of housing conditions came from Professor Ashworth in the 1950's, who pointed out that it was quite wrong to suppose that all nineteenth-century towns developed on the same lines, a kind of Coketown endlessly repeated. While not denying that there was a great deal of poor-quality building, more recently historians have made it clear that newer town housing of the late eighteenth and early nineteenth centuries was not necessarily worse than housing built earlier on, or worse than rural housing built at the same time; that new building varied in construction and amenities in the same town, and from town to town; that the skilled working classes were likely to live in better-quality housing than the unskilled; and that the segregation of working-class housing from middle-class housing, and of the better-off working classes from the labouring classes, again varied from town to town.