Serf's weren't freed and the modern life has nothing to compare with the middle ages.
The czar that freed the serfs in Russia is Alexander the II.
Alexander II
"Your life has changed."
As far as I know "white Russia" is a literal translation of "Belorussia" (Used to be a part of Russia, now a small independent state). In medieval Russian "white" meant "tax-liberated"... Maybe...
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