Creamware cheap, good-quality, mass-produced creamware to Europe had a similar impact on Continental tin-glazed faience factories. By the 1780s Josiah Wedgwood was exporting as much as 80% of his output to Europe. Creamware is made from white clays from Dorset and Devonshire combined with an amount of calcined flint. This body is the same as that used for salt-glazed stoneware, but it is fired to a lower temperature (around 800 °C as opposed to 1,100 to 1,200 °C) and glazed with lead to form a cream-coloured earthenware. The white clays ensured a fine body and the addition of flint improved its
American art pottery Arthur Dovey, who worked at Niloak, is often credited with inventing this swirl, but it may have been invented earlier in a different pottery altogether. There is no question that Niloak popularized the style, however, and apart from a three-year hiatus in the late 1910s, Niloak was successful until the Great Depression put sales into a slump. It struggled on for some years and went out of business in 1947. The J. B. Owens Pottery Company was founded in Roseville, Ohio, in 1885 by J. B. Owens. After moving to Zanesville, it produced art pottery from 1896 to around 1910,