The answer is Fort Laramie. The Fort Laramie treaty in the year 1851 was a treaty between the United States commissioners and the representatives of the Sioux, Cheyenne, Crow, Arapaho, Mandan, Assiniboine, Arikara, and Hidatsa Nations. It was set for the traditional claims of the tribes.
I believe it’s a but I’m not 100 percent sure
I do think it is Nelson Maldela I hope this helped. I'm not 100% sure but I recognize the name and remember reading about him.