La Belle Epoque

Art - Impressionism, Expressionism, Art Nouveau

Eduard Manet, Claude Monet, Pierre Auguste Renoir
Paul Gauguin, Edgar Degas
Berthe Morisot, Gustav Klimt
Alfons Maria Mucha, Henri de Toulouse Lautrec
James Tissot

Fashion

most of the pictures: costumes.org

Jewellery

René Lalique

Furniture

Victor Horta, Émile Gallé, Tiffany, Hector Guimard, Henry van de Velde