Since the late 18th century, Paris has been famous for its restaurants and haute cuisine, food meticulously prepared and artfully presented. A luxury restaurant, La Taverne Anglaise, opened in 1786 in the arcades of the Palais-Royal by Antoine Beauvilliers; it featured an elegant dining room, an extensive menu, linen tablecloths, a large wine list and well-trained waiters; it became a model for future Paris restaurants. The restaurant Le Grand Véfour in the Palais-Royal dates from the same period. The famous Paris restaurants of the 19th century, including the Café de Paris, the Rocher de Cancale, the Café Anglais, Maison Dorée and the Café Riche, were mostly located near the theatres on the Boulevard des Italiens; they were immortalised in the novels of Balzac and Émile Zola. Several of the best-known restaurants in Paris today appeared during the Belle Epoque, including Maxim's on Rue Royale, Ledoyen in the gardens of the Champs-Élysées, and the Tour d'Argent on the Quai de la Tournelle.
Try to answer this question if possible (otherwise reply "unanswerable"): In what century was Cafe Anglais, Cafe de Paris and Rocher de Cancale opened?
19th