1830s: Through the Indian Removal Act (1830) and the Indian Intercourse Act (1834), Indian tribes were forced to move onto reservations into territory now known as Oklahoma, Kansas, Nehraska, and the Dakotas.

1850s: Indians were further confined to present day Oklahoma through the Kansas-Nebraska Act.

1860s: The Indians living in Oklahoma were forced to give up the western half of their territory.

Late 1800s and early 1900s: The Dawes Act, or General Allotment Act, allowed tribal lands to be parceled out to individual Indians, resulting in widespread sale of the land to white settlers.

1930s: Tribal ownership of reservation lands was restored through the Wheeler-Howard Indian Reorganization Act, overturning the 1887 General Allotment (Dawes) Act. Indians also received limited self-governing privileges and help with development and management of land and resources.

1950s: Policies ended special federal programs and trust agreements With Indians.

1960s: The termination policy of...