First off, the war changed americans with the 13th Amendment and slavery was banned. This meant that white people could no longer buy and keep slaves and make them do work. Also slaves could then have a family and live an easier life and get a job. However, there was still discrimination against african americans and there was still segregation. They were free but not equal.
The civil war changed americans ideas about freedom because they used to think that slavery was ok but after the war, they began to