What’s the difference between a cologne, and eau de cologne?Translated, Eau de Cologne means "water of Cologne", a town in Germany (Koln). Exact dates vary a bit, but in general, Cologne as we know it, was patented in 1818 by Jean Marie Farina. It was an alcohol-water base scented with neroli, bergamot, rosemary and lemon. It evaporated quickly, leaving behind a simple clean citrus scent. Roget et Gallet took over the Farina perfume house and still produces the original Eau de Cologne today.