Sullivan's ornament is unmistakably original, but it is not without precedents in the contemporary tradition of the English Arts and Crafts movement. "The numerous parallels between Sullivan's ornament and the architectural decoration of Furness make it clear that Sullivan's ornament came directly from Furness and, through him, from earlier ornament by English architects." The context of his ornament is important as it was seen as a salient amenity for the attraction of tenants to his buildings. For all the "good taste" his ornament might project to the tenant of the 19th century, it situated his design within an anti-classicist categorization out of "good taste" in the 20th century. This change was precipitated by the World's Columbian Exposition where Sullivan was the only American to win a European design medal and the only American to offer non-classically inspired design.