claim: Parkinson's disease causes bradykinesia.
evidence: Charles Edwin Dagenett -LRB- September 17 , 1873 - March 16 , 1941 -RRB- was the highest ranking American Indian in the Bureau of Indian Affairs for over 30 years , and from 1894 to 1927 served under six successive Commissioners of Indian Affairs .. Bureau of Indian Affairs. Bureau of Indian Affairs. Dagenett was a founder and leader of the Society of American Indians -LRB- 1911-1923 -RRB- , the first national American Indian rights organization run by and for American Indians .. Society of American Indians. Society of American Indians. The Society pioneered twentieth-century Pan-Indianism , the philosophy and movement promoting unity among American Indians regardless of tribal affiliation .. Pan-Indianism. Pan-Indianism. Dagenett is credited with creating the Office of Indian Employment at the Bureau of Indian Affairs and successfully employed thousands of American Indians in major labor-intensive projects and corporate industries .. Bureau of Indian Affairs. Bureau of Indian Affairs