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 certain institutions or cultural practices. The concept and the term have been widely applied to cultural phenomena such as the Bible and Zionism, the martial arts of Japan, the "highland myth" in Scotland, and the traditions of major religions, to mention only a few. The concept was influential on the use of related concepts, such as Benedict Anderson's imagined communities and the pizza effect. One implication of the term is that the sharp distinction between "tradition" and "modernity" is often itself invented. The concept is "highly relevant to that comparatively recent historical innovation, the 'nation,' with its associated phenomena: nationalism,