<span>Until it was abolished in 1861, serfs -as they were known- in Russia were ... and the year 1861, when under the rule of czar Alexander II serfdom was abolished. ... of serfdom, but on compiling information about the lives of peasant <span>serfs before.</span></span>
I believe the answer is Dred Scott
An emperor in October 21 1328-24 June 1398 he was hungwu emperor
The answer is The Revenue Act