Aristocrats. Artisan is a trade and anthropologist is someone who studies human societies/cultures.
Germany invaded Poland, bringing Great Britain, France, and the United States into the war.
Serfs were mostly peasant farmers who provided labor in their masters land. Peasants would pay the lord by working for them in exchange to use their lords land to generate their own food. Serfs did not have money. they were basically slaves. They would work at least three times a week. The serf was bound to work in a single manor. The status of serf was passed down to their children.
What / or who are they: Delaware, Pennsylvania, New York, New Jersey
Why middle: These were the 4 of the 13 original colonies that were between the northern and southern colonies.
Religion: this is the sentence you really like to write. There were all sorts of religions present, but not one of them could dominate. These 4 colonies had Lutherans, Mennonites, Calvinists (mostly Dutch), and Presbyterians.
Commerce: mostly agriculture at the time, but not restricted to 1 crop as the south was. Had good ports and growing cities (New York, Philadelphia). I like to include the well respected intellectual hotbed of people there like Ben Franklin.