Charles Stent Charles Stent Charles Stent (1807–1885) was a 19th-century English dentist notable for his advances in the field of denture making. In 1847, Edwin Truman introduced gutta-percha as a material for making dental impressions; however, this was unsatisfactory for several reasons, including its tendency to distort upon removal from the patient's mouth, and to shrink upon cooling. In 1856, Stent added several other materials to the gutta-percha, notably stearine, which markedly improved the plasticity of the material as well as its stability. He also added talc as an inert filler to give more body to the material, and red colouring. The
Invented tradition Invented tradition The invention of tradition is a concept made prominent in the eponymous 1983 book edited by British Marxist intellectual E. J. Hobsbawm and T. O. Ranger. In their Introduction the editors argue that many "traditions" which "appear or claim to be old are often quite recent in origin and sometimes invented." They distinguish the "invention" of traditions in this sense from "starting" or "initiating" a tradition which does not then claim to be old. The phenomenon is particularly clear in the modern development of the nation and of nationalism, creating a national identity promoting national unity, and legitimising