Across Greenville Creek stood the north wall of the Fort at Greene Ville. From 1793 to 1797, the fort served as the headquarters of the US Army under General Anthony Wayne. The largest stockaded fort ever built in North America, it covered nearly 50 acres and served as the Pentagon of its day. In 1795, more than 3,000 Indians gathered there to witness the signing of the Treaty of Greene Ville by representatives of 13 tribes. The treaty reserved lands north of Greenville for Native tribes in exchange for opening the rest of Ohio to American settlement. A second Treaty of Greene Ville was signed in 1814 by Governor William Henry Harrision after he broke the first treaty at the Battle of Tippecanoe.