Meissen porcelain further precaution, very few workers knew the special secret ("arcanum") of how to make porcelain, and then perhaps only part of the process. Thus, for a few years, Meissen retained its monopoly on the production of hard-paste porcelain in Europe. By 1717, however, a competing production was set up at Vienna, as Samuel Stöltzel sold the secret recipe, which involved the use of kaolin, also known as china clay. By 1760 about thirty porcelain manufacturers were operating in Europe, most of them, however, producing frit based soft-paste porcelain. In order to identify the original Meissen products, Meissen developed markings that
Travail, famille, patrie Travail, famille, patrie Travail, famille, patrie (; "") was the tripartite motto of the French State (usually known as Vichy France) during World War II. It replaced the republican motto, "Liberté, égalité, fraternité" of the Third French Republic. The Law of 10 July 1940 gave Marshal Pétain full powers to draw up a constitution before being submitted to the Nation and guaranteeing "the rights of Work, of the Family and of the Homeland ("la Patrie")". That constitution was never promulgated. In the "Revue des deux Mondes" ("Two Worlds Magazine") of 15 September 1940, Marshal Pétain wrote this repudiation of the