Final answer:
By 1906, all Indigenous dancing, including the Potlatch ceremony significant to Pacific Northwest groups, was heavily regulated as part of civilization policies. Indigenous rights to practice their cultural ceremonies were not reinstated until the enactment of the Indian Religious Freedom Act in 1978.
Step-by-step explanation:
The banning of the Potlatch ceremony was a part of civilization policies aimed at assimilating Indigenous peoples into European-Canadian culture. By 1906, all Indigenous dancing was heavily regulated. The Potlatch, a significant cultural practice for Pacific Northwest groups, was a socio-political ceremony that signified wealth and rank through generosity. In the Pacific Northwest, wealth was determined by how much individuals shared and gave away. It was only in 1978 with the Indian Religious Freedom Act that tribal people were legally able to practice their religion again, and the Native American Graves Protection and Repatriation Act of 1990 further supported the rights of Indigenous peoples to reclaim ancestral human remains and sacred items.