Eau de Cologne, or simply cologne, is a type of perfume that originated from Cologne, Germany. It was first mixed by Giovanni Maria Farina in 1709 and has since become a generic term for scented formulations in typical concentration of 2–5% and also more depending upon its type of essential oils or a blend of extracts, alcohol, and water. Eau de Cologne contains a mixture of citrus oils, including oils of lemon, orange, tangerine, clementine, bergamot, lime, grapefruit, blood orange, bitter orange, and neroli, in a base of dilute ethanol (70–90%). It is a lighter fragrance blend of 2% – 4% perfume oils in alcohol and water, and is cut with more alcohol, which makes it last only for a few hours. Eau de Cologne is not to be confused with the term "cologne" in North America, which is often used as an umbrella word for masculine scents.