slavery and serfdom has long been up for debate in terms of rights and protections.
Russian serfdom was a centuries old practice that extend all the way into the 20th century until it was eventually outlawed in the after math of the Bolshevik Revolution of 1917. Serfs, are people who are bound to the land they work, and thus “belong” to the masters of the land. Serfs, much like slaves, where generationally bound and since Russia had a medieval type of caste system, a serf could not be freed or buy their way out of their servitude because it was their caste in society that they belonged to. Russia was still a developing country by they time the empire era ended, so there was a heirarchial society in which it was very hard to move up in. The main difference between a serf and a slave is that 1. A serf cannot be given or but their freedom and 2. Serfs had rights and protection (though very little) under the law which were not extended to slaves in the US during the slavery era.