The Treaty of Fort Harmar was an agreement between the United States government and numerous Native American tribes with claims to what post-AMerican revolutionary War territory northwest of the River Ohio, and that legally existed from July 13 1787 until March 1, 1803?
Northwest Territory The post-American Revolutionary War Territory Northwest of the River Ohio, more commonly known as the Northwest Territory encompassing most of the pre-war territory of the Ohio Country, parts of Illinois Country, and parts of old French Canada below the Great Lakes was an organized incorporated territory of the United States spanning most or large parts of six eventual U.S. States. It existed legally from July 13, 1787, until March 1, 1803, when the southeastern portion of the territory was admitted to the Union as the state of Ohio, and the remainder was reorganized by additional legislative actions.
Treaty with the Kalapuya, etc. The Treaty with the Kalapuya, etc., also known as the Kalapuya Treaty or the Treaty of Dayton, was an 1855 treaty between the United States and the bands of the Kalapuya tribe, the Molala tribe, the Clackamas, and several others in the Oregon Territory. In it the tribes agreed to cede land in exchange for money. The treaty effectively gave over the entirety of the Willamette Valley to the United States and removed Native Americans in the area. The treaty was signed on January 22, 1855, in Dayton, Oregon, ratified on March 3, 1855, and proclaimed on April 10, 1855.