U.S. War Department, Map of the United States of America Showing Boundaries of the Union and Confederate Geographical Divisons and Departments, June 30, 1861 (1891)

After South Carolina seceded from the Union on December 20, 1860, several more states followed over the next six months: Mississippi (January 9, 1861), Florida (January 10, 1861), Alabama (January 11, 1861), Georgia (January 19, 1861), Louisiana (January 26, 1861), Texas (February 1, 1861), Virginia (April 17, 1861), Arkansas (May 6, 1861), North Carolina (May 20, 1861), and Tennessee (June 8, 1861). This map, part of the 1891 Atlas to Accompany the Offical Records of the Union and Confederate Armies, depicts the Confederate States of America as of June 30, 1861.