<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>
It would be "executive privilege" that describes a President's need to keep information private, since this can allow the President to keep information from both Congress and the public.
It would be "rope" that led to the closing of the open range, as farmers started to close off their land to other people and cattle. Barbed wire was not generally used.