Florida South Dakota portalUnited States portalHistory portal This category is for topics specifically related to the year 1918 in the U.S. state of South Dakota. 19131914191519161917191819191920192119221923 1860s1870s1880s1890s1900s1910s1920s1930s1940s1950s1960s Subcategories This category has the following 2 subcategories, out of 2 total. / 1918 establishments in South Dakota (5 P)E 1918 South Dakota elections (3 P)