State                      Secession Date
South Carolina          12-20-1860
Mississippi                 01-09-1861
Florida                       01-10-1861
Alabama                    01-11-1861
Louisiana                  01-19-1861
Georgia                     01-26-1861
Texas                        02-01-1861
Virginia                      04-17-1861
Arkansas                   05-06-1861
North Carolina           05-20-1861
Tennessee                06-08-1861
Missouri                    10-31-1861
Kentucky                  11-20-1861
State Secession by date
Resolution of Maryland