With all that in mind, serfdom was abolished in 1861 only (cf, underground rail opened in London in 1863)
Yes, and slavery in the USA was abolished in 1865, and not without the influence of the abolishment of serfdom in Russia.
By the way, although de facto serfdom in Britain became obsolete much earlier, du jure the feudal copyhold tenure system was abolished only in 1922.
On the other hand, serfdom never was total in Russia. By the year 1861 only about 30% of peasants were serfs. And there were regions where serfdom never existed, that is Russian North, Siberia, Cossacks' lands.