Treaty of June 19, 1858 – Mdwekakanton
On June 19, 1858, a treaty was established between the United States and the Mendawakanton and Wahpakoota bands of the Dakota Sioux, led by their chiefs in Washington, D.C. The agreement included provisions for land allotments, financial compensation for ceded territories, and the establishment of regulations governing the reservation. The treaty emphasized the preservation of peace, the management of the bands’ affairs by the U.S. government, and the importance of avoiding intemperance among the tribes. Provisions for military and agricultural improvements were also included.