serfdom in Poland
... that at its extreme, serfdom in Poland required a peasant to work eight days a week for his feudal lord?
... that at its extreme, <b id="mwCnA"><a href="./Serfdom_in_Poland" id="mwCnE" rel="mw:WikiLink" title="Serfdom in Poland">serfdom in Poland</a></b> required a peasant to work <i id="mwCnI">eight</i> days a week for his feudal lord?