An emporium (plural: emporia) was one of the trading settlements that emerged in Northwestern Europe in the 6th to the 7th centuries and persisted into the 9th century. Also known in English as wics , they were characterised by their peripheral locations, usually on the shore at the edge of a kingdom, their lack of infrastructure (containing no churches) and their short-lived nature. By 1000, the emporia had been replaced by the revival of European towns. Examples include Dorestad, Quentovic, Gipeswic, Hamwic, and Lundenwic (for which see Anglo-Saxon London) at the North Sea, as well as Haithabu, Jumne and Truso on the Baltic Sea. Their role in the economic history of Western Europe remains debated[ how? ]. Their most famous exponent has been the British archaeologist Richard Hodges.