Answer:
Giving the Union control of the Mississippi River
Explanation:
The Union wanted control of the Mississippi to cut off trade and transport for the South. The river being taken also made things harder for the Confederates (because it cut their side in half, so the Union had the upper hand).
It was Alexander I.
He was a Russian Tsar, he fought Napleon, I believe.
A peasant is considered to be a farmer and would give free service to the lord and his land. This is in exchange for their rent on the land owned by the lord and for the food provided by the crops grown in the lord's land. They would work for three times in a week or longer, if it is harvest time. A peasant was not permitted to change their abode or move to another place. They needed to become a freeman first. In order to become a freeman, he needed to pay his debt to the lord or buy a piece of his land. The status of being a peasant or serf will be passed onto the descendants.