Wedgwood led "an extensive and systematic programme of experiment", and in 1765 created a new variety of creamware, a fine glazed earthenware, which was the main body used for his tablewares thereafter. After he supplied her with a teaset for twelve the same year, Queen Charlotte gave official permission to call it "Queen's Ware" (from 1767). This new form, perfected as white pearlware (from 1780), sold extremely well across Europe, and to America. It had the additional advantage of being relatively light, saving on transport costs and import tariffs in foreign markets. It caused considerable disruption to the makers of European faience and delftware, then the main European tableware bodies; some went out of business and others adopted English-style bodies themselves. The Pont-aux-Choux factory near Paris was one of the first to do so; in France creamware was known as "faience fine", in Italy "terraglia".