Earlier quoted context omitted.
Serfdom was abolished in Russia in 1861.
Eh... _kind of_. It was abolished in such a way that in practice it kept more or less functioning for a very long time afterwards.
But serfdom is a lot more than that - it's literally treating people as slaves, selling them etc. That part was decisively abolished.
By 1917, when the Revolution happened, peasants' primary concern was access to and control of the land, not personal freedom.