The Dakotas is a collective term used around the world that refers to the U. S. states of North Dakota and South Dakota together. The name "Dakota" comes from the Tipi Sapa, a Native American clan that is a branch of the Lakota. To the ethnologist and to the philologist the Dakotas and those speaking kindred languages are a very interesting people. There are four principal Dakota dialects, the Santee, Yankton, Assinniboin and Titon. The allied languages may be divided into three groups: I. a, Winnebago; b, Osage, Kaw, and 2 Quapaw; c, Iowa, Otoe and Missouri; d, Omaha and Ponka. II. Mandan. III. a, Minnetaree (Minitari) or Hidatsa; b, Absauraka, or Crow. Pawnee and Aricaree seem also to be somewhat related.