I literally don't have any exact answers, so dm me or smth if this is wrong with A B C D or smth, but here:
During reconstruction, former confederate generals were unsupportive and extremely racist. Northern troops had to be sent to the south to enforce new anti-racist laws and delay the forming of Black Codes and Jim Crow laws. But still, The Ku Klux Klan formed, and Black Codes and Jim Crow laws formed with it once northern troops were sent away.
Education and learning was largely preserved during the Middle Ages through the Church and through the progress made during the age of the Roman Empire. The language of academia, for both of these reasons, was in Latin.
People who went into academia, learning to read and write and study other subjects, usually did so in Latin. This is both because the Roman Catholic Church usually administrated this education, and also because much of the texts that were studied were in Latin due to there origin in the Roman Empire.
They are the Redeemers, white democrats whom critics called Bourbon Democrats in Southern United States during the Reconstruction Era after the Civil War. They were mainly led by the rich landowners and businessmen and they ruled Southern politics in most areas from the 1870's to 1910.