North America was the closest comparison. The mongol empire covered 9.15 million square miles of land while North America covers 9.54 million square miles of land.
He miscalculated the size of the Earth by more than half.
In a feudal system, a vassal, akin to a serf in most contexts, in general worked land on a lord's fiefdom in exchange for some of the produce from the land and some military protection.
I think <span>It was won by Native Americans and poor farmers. ;)</span>
I think the answer would be A which would be that it required all citizens to support the slave system.
