What did the term "redemption" mean to white southerners in the 1870s?

The term redemption meant to the white southerners in the year 1870 is that the redemption is a way of having to bring or getting back a democratic party and having to give back the power of the rich whites that they yearn.

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion