The enormous scope of the subject makes the task of the Introduction difficult, and this difficulty is compounded by the reluctance of the Popes to specify exactly what they are talking about among the fashions of their own times. The earlier part of the period covered by these docuмents saw the development of recreational bathing, female sports and engagement in the work-place (particularly during the world wars), as well as many style trends. There are some references to the changing role of women and new realities such as dressing for the beach, but none at all to things like the length of skirts, sleeves, swimwear, or women wearing trousers, although Cardinal Siri does attend to this last issue.