Legality of Cannabis by U.S. Jurisdiction Colorado portalUnited States portalHistory portal This category is for topics specifically related to the year 1905 in the U.S. state of Colorado. 19001901190219031904190519061907190819091910 1850s1860s1870s1880s1890s1900s1910s1920s1930s1940s1950s Subcategories This category has the following 3 subcategories, out of 3 total. / 1905 disestablishments in Colorado (1 P) 1905 establishments in Colorado (12 P)S 1905 in sports in Colorado (4 P)