Cassava, or manioc, another American food crop introduced to Africa in the 16th century as part of the Columbian Exchange, had impacts that in some cases reinforced those of corn and in other cases countered them
Territory in the New World
Germany was similar to Italy because revolutionaries in Germany and Italy called for unification
Probably the knight because these were anyone skilled in fighting, knighted by the lord of the area. However knights weren't just nobles.