Timeline of United States inventions (1890–1945) of these fibers for textile applications is more recent. The first commercial production of fiberglass was in 1936. In 1938, fiberglass was invented by Russell Games Slayter of Owens-Corning. 1938 Xerography Xerography, which means "dry writing" in Greek, is a process of making copies. Xerography makes copies without using ink. In this process, static electricity charges a lighted plate; a plastic powder is applied to the areas of the page to remain white. The photocopier was invented in 1938 by Chester Floyd Carlson who marketed his revolutionary device to about 20 companies before he could interest any. The Haloid Company,
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