Which positive effect might the rules of chivalry have had on federal society

Thank you for posting your question here at . Positive effect might the rules of chivalry have had on federal Society is to encouraged the powerful to tie their interests to the fate of the downtrodden and impoverished feudal peasants; constant training and readiness for battle may have prevented some wars due to the threat of "mutual annihilation"

He issued the emancipation proclamation. it started changing slavery, and eventually lead to the freedom of slaves.