Sienna (from Italian: terra di Siena, meaning “sienna”) is an earth pigment that contains iron oxide and manganese oxide. In its natural state it is yellowish-brown in color and is called raw sienna. When heated, it turns reddish brown and is called burnt sienna. It takes its name from the city-state of Siena, where it was built during the Renaissance. Along with ocher and amber, it was one of the first pigments used by man and is found in many cave paintings. It has been one of the most used brown pigments by artists since the Renaissance. The first recorded use of Sienna as a color name in English was in 1760.