Answer:In his historic thesis, 'The Significance of the Frontier in American History,' originally presented to a group of fellow historians in Chicago, he argued that as a result of the frontier, American character and society developed differently from European or other known cultures of the time.
Berries, I’m pretty sure berries are not one of the middle east’s major crops. Wheat and cotton definitely are, and so is citrus I believe, so I’d say berries is your best bet.
