In September 1809 William Henry Harrison, then governor of the Indiana Territory, invited the Potawatomi, Lenape, Eel River people, and the Miami to a meeting in Fort Wayne, Indiana. In the negotiations, Harrison promised large subsidies and payments to the tribes if they would cede the lands he was asking for. After two weeks of negotiating, the Potawatomi leaders convinced the Miami to accept the treaty as reciprocity, because the Potawatomi had earlier accepted treaties less advantageous to them at the request of the Miami. Finally the tribes signed the Treaty of Fort Wayne on September 30, 1809, thereby selling the United States over 3,000,000 acres (approximately 12,000 km2), chiefly along the Wabash River north of Vincennes, Indiana.