Sitting Bull knew who the enemy were – of what tribe.'...They were soon to find out."(Utley 1992: 122–24) Sitting Bull's refusal to adopt any dependence on the US government meant that at times he and his small band of warriors lived isolated on the Plains. When Native Americans were threatened by the United States, numerous members from various Sioux bands and other tribes, such as the North Cheyenne, came to Sitting Bull's camp. His reputation for "strong medicine" developed as he continued to evade the European Americans. After the January 1st ultimatum of 1876, when the US Army began to track down
Sitting Bull the world. Two weeks later, after waiting in vain for other members of his tribe to follow him from Canada, the Army transferred Sitting Bull and his band to Fort Yates, the military post located adjacent to the Standing Rock Agency. This reservation straddles the present-day boundary between North and South Dakota. Sitting Bull and his band of 186 people were kept separate from the other Hunkpapa gathered at the agency. Army officials were concerned that he would stir up trouble among the recently surrendered northern bands. On August 26, 1881, he was visited by census taker William T. Selwyn,