Art Nouveau is an international philosophy and style of art, architecture and applied art—especially the decorative arts—that were most popular during 1890–1910. The name \"Art Nouveau\" is French for \"new art\". It is known also as Modernisme in Catalonia (Spain), with its most notable contributions by the architect Antoni GaudÃ. A reaction to academic art of the 19th century, it was inspired by natural forms and structures, not only in flowers and plants but also in curved lines. Architects tried to harmonize with the natural environment. The style was influenced strongly by Czech artist Alphonse Mucha, when Mucha produced a lithographed poster, which appeared on 1 January 1895 in the streets of Paris as an advertisement for the play Gismonda by Victorien Sardou, featuring Sarah Bernhardt. It popularised the new artistic style and its creator to the citizens of Paris. Initially named Style Mucha, (Mucha Style), his style soon became known as Art Nouveau.