Croatian art of the 20th century, that is visual arts within the boundaries of today's Croatia, can be divided into modern art up to the Second World War, and contemporary art afterwards. Modern art in Croatia began with the Secession ideas spreading from Vienna and Munich, and post-Impressionism from Paris. Young artists would study the latest trends and integrate them into their own work. Many strove to bring a native cultural identity into their art, for example themes of national history and legends, and some of the artwork following the First World War contained a strong political message against the ruling Austro-Hungarian state. A change was noticeable in 1919 with a move to flatter forms, and signs of cubism and expressionism were evident. In the 1920s, the Earth Group sought to reflect reality and social issues in their art, a movement that also saw the development of naive art. By the 1930s there was a return to more simple, classical styles. Following the Second World War, artists everywhere were searching for meaning and identity, leading to abstract expressionism in the U.S. and art informel in Europe. In the new Yugoslavia, the socialist realism style never took hold, but bauhaus ideas led to geometric abstraction in paintings and simplified spaces in architecture. In the 1960s, non-conventional forms of visual expression took hold along with a more analytical approach to art, and a move towards new media, such as photography, video, computer art, performance art and installations, focusing more on the artists' process. Art of the 1970s was more conceptual, figurative and expressionist. However, the 1980s brought a return to more traditional painting and images. Modern Art The term Modern Art in Europe covers roughly the period from the 1860s to the Second World War, and denotes a move away from academic art with its classical mythology themes and stylised landscapes. In Croatia, the change was marked by the Croatia salon (Hrvatski salon) exhibit of 1898 in the new Art Pavilion in Zagreb. One of the prime movers of that exhibition, and in the construction of the Art Pavilion itself was the artist Vlaho Bukovac. Together with Bela Čikoš Sesija, Oton Iveković, Ivan Tišov, Robert Frangeš-Mihanović, Rudolf Valdec and Robert Auer he established a breakaway Croatian Society of Artists, who were to become known as the Zagreb Colourful School (Zagrebačka šarena škola). This set the scene in the beginning years of the