Legality of Cannabis by U.S. Jurisdiction United States portal This category is for Washington, D.C. in the year 1868 18631864186518661867186818691870187118721873 1810s1820s1830s1840s1850s1860s1870s1880s1890s1900s1910s See also: Timeline of Washington, D.C. Subcategories This category has only the following subcategory. / 1868 establishments in Washington, D.C. (5 P)