The classification of decorative styles has been historically associated with a set of aesthetic principles, which reflected the taste and the fashion of a time in a specific place. In most occasions they were established by influential families and rulers. During a ruler's term a style based on his architectural tastes and decoration was embodied in palaces, mansions or residences of the upper class, as well as in the furniture and fixtures that they ordered to produce for their use. The arrival of the industrial revolution and the creation of objects in series favored the frequent succession of decorative styles, by making available of all social classes furniture and belongings until then intended for a few. The concept of decorative style then becomes flexible and less obvious.