Russkaya Pravda
The term "serf", in the sense of an unfree peasant of tsarist Russia, is the usual English-language translation of () which meant an unfree person who, unlike a slave, historically could be sold only with the land to which he or she was "attached". Emperor Peter I ended slavery in Russia in 1723. Contemporary legal documents, such as "Russkaya Pravda" (12th century onwards), distinguished several degrees of feudal dependency of peasants.