The Treaty of Fort Wayne, 1809
A depiction of William Henry Harrison and the Shawnee Chief Tecumseh arguing in Vincennes Indiana over the Treaty of Fort Wayne. This meeting happened in 1810, barely a year after the treaty was signed and would lead to the Battle of Tippecanoe the next year in 1811. Source: Courtesy of Wikimedia commons Creator: Krevin1776
The Treaty of Fort Wayne, also known as the Twelve Mile Line Treaty or the Ten o’clock Line Treaty, was signed in 1809. It was an agreement between primarily the Delaware nation along with the Miami and Potawatomie nations and the U.S. government. Represented by Indiana Territorial Governor William Henry Harrison, the goal for the treaty was to leverage those nations who were refusing to sell land around the Wabash River. After some initial resistance from the Miami, the treaty was signed on September 29, 1809. Over 3,000,000 acres of land, mostly along the Wabash River and north of the territorial capital of Vincennes were sold to the US government. Another section extended further west extending the Treaty of Greenville line, connecting it south towards the Treaty of Grouseland line. In exchange the signing Native nations were given differing amounts of annuity payments. The Delaware and Miami nations received yearly $500 payments (about $13,000 in 2025).
The Treaty of Fort Wayne would quickly become a flashpoint that led directly to the Battle of Tippecanoe in 1812. The Shawnee nation lived on some of the lands sold in the Treaty of Fort Wayne. No Shawnee representative was present at negotiations. This was a common practice used by U.S. negotiators. They would use the agreements of the other nations who lived on the land as justification to remove those who didn’t agree to sell. In this instance it led to open conflict and fighting, as influential Shawnee leader Tecumseh argued this sale was illegitimate. The other nations had no rights to sell the land. Tecumseh would create a Native village, nicknamed “Prophetstown”, and invite many nearby nations to come and settle there to bring Native peoples together to resist U.S. expansion. U.S. forces would march on the village in 1812. After a short battle they burned it to the ground and scattered the inhabitants.
This treaty also serves as an example of how military force was used as an implied threat to Native nations to convince them to sell land. The treaty was negotiated at Fort Wayne, a military fort that would have housed soldiers and been an extension of military strength in the region. It would have been a very clear implied threat to those Native leaders who were negotiating the treaty not to resist U.S. demands by showcasing the strength of the military that would be sent against them if they tried to resist.
Images
A depiction of William Henry Harrison and the Shawnee Chief Tecumseh arguing in Vincennes Indiana over the Treaty of Fort Wayne. This meeting happened in 1810, barely a year after the treaty was signed and would lead to the Battle of Tippecanoe the next year in 1811. Source: Courtesy of Wikimedia commons Creator: Krevin1776
A painting of the Shawnee Chief Tecumseh, painted based on a 1868 engraving by Benson Lossing. He was the chief opponent to U.S. expansion at the time of the treaty. The Treaty of Fort Wayne became a major point of anger for Tecumseh due to its cessions of Native lands without consent of all parties. Source: Courtesy of Wikimedia commons Creator: Aavindraa
Shown here is the full text of the Treaty of Fort Wayne. This image comes from a 2017 exhibit at the Smithsonian museum titled "Nation to Nation" and shows the treaty in relation to Tecumseh's efforts to slow U.S. western expansion. Source: Courtesy of The Smithsonian
Illustrated here is a color coded map of Indiana showing the names of treaties, the associated dates, as well as the lands those treaties were related to. Look in the center right and left parts of the map for the Treaty of Fort Wayne lands. Source:
Courtesy of Wikimedia Commons