Impressionism is a 19th-century art movement that originated with a group of Paris-based artists, whose independent exhibitions brought them to prominence during the 1870s and 1880s. The development of Impressionism in the visual arts was soon followed by analogous styles in other media, most notably those of music and literature, but also in photography and film. Impressionism was implemented as an aesthetical concept in film art, and has been most strongly associated with French Film of the 1920’s. Directors such as Germaine Dulac, Louis Delluc, Jean Epstein, Abel Gance, Marcel L’Herbier and Dimitri Kirsanoff referred their works to Impressionist paintings and the music of the 19th century. The definition was established by film historians such as Henri Langlois and Georges Sadoul.