Legality of Cannabis by U.S. Jurisdiction Idaho portalUnited States portalHistory portal This category is for topics specifically related to the year 1911 in the U.S. state of Idaho. 19061907190819091910191119121913191419151916 1860s1870s1880s1890s1900s1910s1920s1930s1940s1950s1960s Subcategories This category has the following 2 subcategories, out of 2 total. / 1911 establishments in Idaho (12 P)S 1911 in sports in Idaho (1 P)