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.
Cairo hope that this. Helped you :))
The progressives tried to help children by limitng maximum hours of labor and in establishing a minimum age for children to be allowed to work.
There were also mandatory laws in different states for children to attend school.
The Progressives believe that government should take an active participation to solve the problems in a society like poverty, education, woman and children rights, job opportunities and best conditions for living.
Because that's where the colonizers came from and they didn't have much when they got here.