<span> Although the skyrocketing urban populations strained public school systems, schools educated everyone from the children of urban professionals to the children of immigrant workers and the very poor. Some cities, including Boston, New York, Chicago, and San Francisco, even provided free secondary schools.</span>
Answer:
The Ming practiced isolationism to prevent foreign influences from undermining their values and society.
The demons of Nathan Algrens are caused by the terrible things he did during the American Indian Wars. He killed many natives because he believed it was part of his duty. He does not want to be ordered to kill innocent people but he accepts his Colonel's offer because of the money.
