After the War of 1812, Territorial Governor Lewis Cass sought to ease tensions between the United States and the Native Peoples who had allied with the British by requesting that President James Madison appoint commissioners to negotiate a peace treaty with eight tribes. Madison named General William Henry Harrison, General Duncan McArthur, and John Graham, who met Native American leaders at Spring Wells, a sandy hill with flowing springs near the Detroit River, near what became in 1843 the site of Fort Wayne. Leaders from the Odawa, Potawatomi, Seneca, Ojibwa, Wyandot, Delaware, Miami, and Shawnee tribes attended. The council fire was lit on August 31, 1815, and negotiations began. All parties agreed that prior treaties would be honored as written, and they added no new land grants or payments. On September 8, 1815, commissioners and tribal leaders signed the treaty after it was translated by interpreters. The completed parchment document was nearly six feet long. On December 26, 1815, the United States Congress ratified the treaty. Although later treaties involved Michigan tribes, the Treaty of Spring Wells was the last peace treaty signed in Michigan by the United States government.