The Treaty with the Pawnee, 1857, is now on display at the Smithsonian’s National Museum of the American Indian as part of its “Nation to Nation” exhibition. Installed in partnership with the National Archives, the treaty is one of more than 370 ratified agreements between the U.S. and Native nations. The unveiling included Pawnee Nation leaders and museum director Cynthia Chavez Lamar. Treaties are rotated due to preservation needs.