Ever since Woodrow Wilson, in the course of his attempts to lay a new and secure basis for peace after the First World War, proclaimed the necessity for “open covenants of peace, openly arrived at,” the methods of diplomacy have been regarded as having had their part in bringing about the outbreak of the First World War, and the demand for a “new diplomacy” has been raised. Although this concept has come into frequent use only in our century, it was soon realized that its history could be raced back into the nineteenth century, but its exact provenance has never been fully established. This article will show that the term can be found even earlier than is generally assumed, namely as early as 1793. As in all such disputes about the origin of a term, it would be ridiculous to maintain that this was definitely the first time this concept made its appearance, but it seems justified to propose that the concept definitely belongs to the second part of the eighteenth century.