Peacemaking in the 19th century grew from the witness and activity of the traditional Christian peace churches to include new religious peace movements , as well as secular peace societies . Abolition, the Civil War, and the new U.S. role in international affairs had major impact on their development. Most marker descriptions are quoted from the Swarthmore College Peace Collection archive (See source references). See our Bibliography for more materials. Click “View Larger Map” below for more detail.