Treaty of Washington City
The Treaty of Washington City was a treaty signed on January 20, 1825 (proclaimed on February 19, 1825) between the Choctaw (an American Indian tribe) and the United States Government. == Overview == Apuckshunubbee, Pushmataha, and Mosholatubbee, the principal leaders of the Choctaws, went to Washington City (the 19th century name for Washington, D.C.) to discuss encroaching settlement and to seek the expulsion of settlers or financial compensation.
Source: Wikipedia — Treaty of Washington City (CC BY-SA 4.0)