Creamware of these potteries would have been producing creamware. Whilst Staffordshire had taken the lead, creamware came to be developed in a number of large potting centres where stoneware was already being produced, eventually replacing stoneware entirely. These included Derbyshire, Liverpool, Yorkshire (including the Leeds pottery) and Swansea. Attribution of pieces to particular factories has always been difficult because virtually no creamware was marked prior to Josiah Wedgwood's manufacture of it in Burslem. At the time manufacturers frequently supplied wares to one another to supplement stocks and ideas were often exchanged or copied. In addition, factories usually sent out their wares
Creamware his creamware to Queen Charlotte and Catherine the Great and used the trade name "Queen's ware". The Leeds Pottery (producing "Leedsware") was another very successful producer. Wedgwood and his English competitors sold creamware throughout Europe, sparking local industries, that largely replaced tin-glazed faience. and to the United States. One contemporary writer and friend of Wedgwood claimed it was ubiquitous. This led to local industries developing throughout Europe to meet demand. There was also a strong export market to the United States. The success of creamware had killed the demand for tin-glazed earthenware and pewter vessels alike and the spread of