''Manypenny Agreement'' is a United States Congressional act passed on February 28, 1877, it officially removed ownership of the

Black Hills The Black Hills ( lkt, Ȟe Sápa; chy, Moʼȯhta-voʼhonáaeva; hid, awaxaawi shiibisha) is an isolated mountain range rising from the Great Plains of North America in western South Dakota and extending into Wyoming, United States. Black Elk P ...

from the Lakota Sioux and the United States took control of 900,000 acres of the Black Hills.

References

44th United States Congress Statutory law {{law-stub