Clarence Saunders developed an American supermarket chain whose first outlet opened in what year?
Clarence Saunders (grocer): Clarence Saunders (August 9, 1881 – September 23, 1953) was an American grocer who first developed the modern retail sales model of self service. Piggly Wiggly: Piggly Wiggly is an American supermarket chain operating in the Southern and Midwestern regions of the United States, run by Piggly Wiggly, LLC, an affiliate of C&S Wholesale Grocers.
i don't know