Episode 2 of 4

Signing of the Treaty

Name: Signing of the Treaty
Start: 1858-04-19
End: 1858-04-19
Location: Washington, D.C.

When: 19 April 1858
Where: Washington, D.C.
Part of: United States signs treaty with the Yankton Sioux

The treaty was signed on April 19, 1858, in Washington, D.C., by Charles E. Mix and Yankton chiefs.

Charles E. Mix, representing the United States government, signed the treaty with various chiefs and delegates of the Yankton tribe. Strike-the-Ree, the elder Yankton Sioux chief, signed the treaty despite feeling that too many whites were settling in the area.

Sources

Yankton Treaty Wikipedia, revision of 2026-10-03
Yankton Sioux Tribe Wikipedia, revision of 2026-10-02

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.