https://www.rt.com/usa/letters-between-liberators-lincoln-and-aleksandr-ii/
Lincoln was about to witness a civil war that would eventually shed the blood of hundreds of thousands of Americans. The war began over slavery, and an attempt by the Southern States to secede. Seas away, Tsar Aleksandr was on a mission of his own. In 1861, the Tsar proclaimed his manifesto liberating twenty million Russian slaves or serfs.