Additionally, the new style was an outgrowth of two nineteenth-century English developments for which design reform (a reaction to prevailing art education, industrialized mass production, and the debasement of historic styles) was a leitmotif—the Arts and Crafts movement and the Aesthetic movement. The former emphasized a return to handcraftsmanship and traditional techniques. The latter promoted a similar credo of "art for art's sake" that provided the foundation for non-narrative paintings, for instance, Whistler's Nocturnes. It further drew upon elements of Japanese art ("japonisme"), which flooded Western markets, mainly in the form of prints, after trading rights were established with Japan in the 1860s. Indeed, the gamut of late nineteenth-century artistic trends prior to World War I, including those in painting and the early designs of the Wiener Werkstätte, may be defined loosely under the rubric of Art Nouveau.