While few of us probably actually still live in the houses of our own ancestors, many of us certainly live in older properties with rich histories. If you’ve ever attempted a makeover of such a house, you might well have been surprised by the number of layers of wallpaper beneath the one with which you are familiar. Indeed, some renovators have reported more than ten different coverings that need to be peeled away, and in pubs and other public buildings, up to 30 layers have sometimes been espied!