Literature
During which time period did Bern, Switzerland make French language fashionable?
Switzerland
As the Confederation, from its foundation in 1291, was almost exclusively composed of German-speaking regions, the earliest forms of literature are in German. In the 18th century, French became the fashionable language in Bern and elsewhere, while the influence of the French-speaking allies and subject lands was more marked than before. Among the classics of Swiss German literature are Jeremias Gotthelf (1797–1854) and Gottfried Keller (1819–1890). The undisputed giants of 20th century Swiss literature are Max Frisch (1911–91) and Friedrich Dürrenmatt (1921–90), whose repertoire includes "Die Physiker" (The Physicists) and "Das Versprechen" (), released in 2001 as a Hollywood film. Prominent French-speaking writers were Jean-Jacques Rousseau (1712–1778) and Germaine de Staël (1766–1817). More recent authors include Charles Ferdinand Ramuz (1878–1947), whose novels describe the lives of peasants and mountain dwellers, set in a harsh environment and Blaise Cendrars (born Frédéric Sauser, 1887–1961). Also Italian and Romansh-speaking authors contributed but in more modest way given their small number. Probably the most famous Swiss literary creation, "Heidi", the story of an orphan girl who lives with her grandfather in the Alps, is one of the most popular children's books ever and has come to be a symbol of Switzerland. Her creator, Johanna Spyri (1827–1901), wrote a number of other books around similar themes.