AtlasState · SD
South Dakota
Twin admission with North Dakota on November 2, 1889, from Dakota Territory.
Capital Pierre. November 2, 1889. Order 40.
Militia. Dakota Territorial Militia. Company A, 1st Dakota Cavalry, organized January 27, 1862, under Capt. Nelson Miner at Yankton — official South Dakota Guard birthday; shared heritage with North Dakota.