A light bulb at California’s Livermore-Pleasanton Fire Department has been flickering since 1901. The Centennial Light was manually made by Adolphe Chaillet, the founder of Shelby Electric Company in the 1890s. It has been noted by the Guinness Book of World Records, Ripley’s Believe It or Not!, and General Electric.Retired Deputy Fire Chief Tom Bramell says “We don’t even dust it off.”