Question: når ble de røykfylte fjellene en nasjonalpark
Answer: 1940-09-02; 02-09-1940; 1940 09 02; 09-02-1940; 02 September 1940; 09/02/1940; 09 02 1940; 02 09 1940; 02/09/1940; 1940 september, 02; 1940 September 02; 1940-09-02