Sonnentanz
The second way in which nineteenth century Crows may attempted to gain "Baaxpée" was through a Sun Dance (aškišširissu-a). Unlike the vision quest the Sun Dance is performed by individuals in a public ceremony for the benefit of the whole tribe, performed to ensure the Crow's links to God remain strong, therefore bringing prosperity and happiness. Leslie Spear believed that the Sun Dance ceremony most likely came from the Cheyenne, Blackfeet and Atsina tribes as these groups had the most complex Sun Dance ceremonies. The Sun Dance was banned on the Crow reservation in 1887 as part of the 'civilising' effort that the Indian Office embarked upon during this era. The practise was revived in 1941 when William Big Day, after having attended a Shoshone Sun Dance where he felt an intense connection, performed the first Crow Sun Dance in fifty-four years, believing that its resurrection would bring happiness to the tribe. The practice grew so that by the 1990s an average of five Sun Dances were conducted each summer. In the late 1980s a Teton-Sioux version of Sun Dance was introduced to the reservation, resulting in some dances displaying a hybrid of Shoshone and Teton characteristics.