fred zemlickSep 16, 20191 min readWho invented the wringing mop?Thomas W. Stewart, Inventor of the Wringing Mop
Has the word 'janitor' always meant someone who cleans?Appropriately, janitor derives from the Latin janus, meaning “arch” or “gate.” As an occupation, the word originating in the 1580's referred to one who keeps guard at an entry gate: "At the expiration