Serfdom in Russia was ended a year or two after slavery ended at the close of our own civil war.
And interestingly, in South America decades later. Lots of things people ignore about slavery. One I always like is that according to the Trans-Atlantic Slave Trade Database, about 10.7 Million were shipped over from Africa.
Of those, about 388,000 came to North America.
About 3.7%,,,
We also hear how the British fought the slave trade, and how the Royal Navy went after slavers. Sounds good, until you realize that the British were actually not wanting competition for their cotton colony in India. And the Raj was not technically slavery.... technically.
Actually serfdom was ended in Russia by Imperial Decree on the day before Abraham Lincoln was sworn in as president of the United States. And not a drop of blood was spilled.