The Lakota people, or the people of Standing Rock, are one of the first original Native American tribes who inhabited the North Americas.
Often referred to as the Great Sioux Nation, during their migration to new hunting grounds, the Lakota people became divided into three distinct groups based on their way of life, language and geography; Dakota (Santee, Eastern Dakota), Lakota (Teton, Western Dakota) and Nakota (Yankton, Central Dakota). The meaning of “Dakota” and “Lakota” is “friends” or “allies”.
Ancient Lakota history is depicted in the pictorial calendars famously known as “Winter Counts”, seen on buffalo hides. It is said that around 1730 horses were introduced to the Lakotas by the Cheyenne people, and they called the horses “dogs of power, wonder or mystery”. After this, the Lakotas became fierce buffalo hunters riding on horseback.
At present, the Lakota people inhabit five major reservations in the western Dakota region.
(https://www.lakotamall.com/history-and-ancestry/)