Art Nouveau (/ˌɑːrt nuːˈvoʊ, ˌɑːr/; French: [aʁ nuvo]) is an international style of art, architecture and applied art, especially the decorative arts, known in different languages by different names: Jugendstil in German, Stile Liberty in Italian, Modernisme in Catalan, etc. In English it is also known as the Modern Style. The style was most popular between 1890 and 1910. It was a reaction to the academic art, eclecticism and historicism of 19th century architecture and decoration and was inspired by natural forms and structures, particularly the curved lines of plants and flowers, and whiplash forms. Other defining characteristics of Art Nouveau were a sense of dynamism and movement, often given by asymmetry and by curving lines, and the use of modern materials, such as iron pillars and railings, sculpted and curved in naturalistic designs.