Legality of Cannabis by U.S. Jurisdiction Idaho portalUnited States portalHistory portal This category is for topics specifically related to the year 1919 in the U.S. state of Idaho. 19141915191619171918191919201921192219231924 1860s1870s1880s1890s1900s1910s1920s1930s1940s1950s1960s Subcategories This category has the following 3 subcategories, out of 3 total. / 1919 disestablishments in Idaho (1 P) 1919 establishments in Idaho (13 P)S 1919 in sports in Idaho (3 P)