Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Simeulue Regency
The people of Simeulue are similar to the people in the neighboring Nias Island, speaking 3 languages (Devayan, Sigulai and Lekon) which are distinctly different from the languages spoken in mainland Aceh. The majority of the people of Simeulue are Muslim.