A nonprofit organization of dedicated Dakota community members, language learners and speakers. DIO was created out of a international need for Dakota language materials to be implemented for easily accessible language learning.
The SWO Dakota Language Institute.
Founded in 2002, the SWODLI has a main focus of creating language learning materials for our families, our schools and our community.
"Hau mitakuyepi, The following dictionary is very unique. The words within these pages have been collected from Dakotah language speakers from the Lake Traverse Reservation in northeastern South Dakota. The Sisseton-Wahpeton Oyate, the name for the tribal members of the Lake Traverse Reservation, speak a dialect of the Dakotah language that is unique to this specific group of the collective Oceti Sakowin, which is sometimes referred to as the 'Great Sioux Nation'. Although the Sisseton-Wahpeton Oyate have a distinct dialect, there are differences within the dialect; certain words may only be used in particular areas of the reservation..."-- Preface
The language of the Dakota people was first put into written form by missionaries who lived within and learned from the Dakota community in the Minnesota River valley. John P. Williamson (1835-1917), son of missionary Dr. Thomas S. Williamson, grew up speaking both English and Dakota, then spent most of his adult life as a missionary on the Santee Reservation in northeastern Nebraska. In 1902, he produced An English-Dakota Dictionary.