Original sentence: But tensions remained high on the frontier and became much greater after the 1809 Treaty of Fort Wayne in which Harrison purchased, by questionable means, more than 2,500,000 acres (10,000 km²) of land inhabited by Shawnee, Kickapoo, Wea, and Piankesahw from the Miami tribe who claimed ownership of the land
Edited sentence: But tensions remained high on the frontier and became much greater after the 1809 Treaty of Fort Wayne in which Harrison purchased, by questionable means, more than 2,500,000 acres (10,000 km²) of land inhabited by Shawnee, Kickapoo, Wea, and Piankeshaw from the Miami tribe who claimed ownership of the land