Sitting Bull named Wovoka, spread a religious movement from Nevada eastward to the Plains in 1889 that preached a resurrection of the Native. This was a time of severe conditions of harsh winters and long droughts impacting the Sioux Reservation. It was known as the "Ghost Dance Movement", because it called on the Indians to dance and chant for the rising up of deceased relatives and return of the buffalo. When the movement reached Standing Rock, Sitting Bull allowed the dancers to gather at his camp. Although he did not appear to participate in the dancing, he was viewed as a key
Sitting Bull Later historians and ethnologists have refuted this concept of authority, as the Lakota society was highly decentralized. Lakota bands and their elders made individual decisions, including whether to wage war. Sitting Bull's band of Hunkpapa continued to attack migrating parties and forts in the late 1860s. When in 1871 the Northern Pacific Railway conducted a survey for a route across the northern plains directly through Hunkpapa lands, it encountered stiff Lakota resistance. The same railway people returned the following year accompanied by federal troops. Sitting Bull and the Hunkpapa attacked the survey party, which was forced to turn back. In