It would be primarily "The Church and the Crusades" that <span>played a significant role in uniting the kings and people of Europe, since adhering to religious principles back then was the norm for most. </span>
Answer:
Explanation:
War destroys communities and families and often disrupts the development of the social and economic fabric of nations. The effects of war include long-term physical and psychological harm to children and adults, as well as a reduction in material and human capital.
I believe the answer is A. He developed the idea of the "invisible hand" of the free market, which continually keeps the economy on course. This can be found in his book "<span>The Wealth of Nations".
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