Answer:
The re-establishment of friendly relations; conciliation, rapprochement is reconciliation.
It was "Booker T Washington" who started school in Alabama where black children could learn skills such as shoemaking and farming, since he believed this was a way in which this children could eventually advance in society.
This is a bit subjective, but it could be argued that social change had the biggest change in Southern life, since the abolition os slavery (which was inherently a social issue) led to the biggest changes.
In 1828, a teen aged Abraham Lincoln guided a flatboat down the Mississippi River to New Orleans. The adventure marked his first visit to a major city and exposed him to the nation's largest slave marketplace.