Original sentence: Wilsonism after the end of WWI lead in some pert to the formation of the League of Nations, as well as territorial changes such as the formation of new nations like Poland, Czechoslovakia, Romania, and Yugoslavia
Edited sentence: Wilsonism after the end of WWI lead in some aert to the formation of the League of Nations, as well as territorial changes such as the formation of new nations like Poland, Czechoslovakia, Romania, and Yugoslavia