That would be the Treaty of Paris. It was an article of peace suggesting the end of the Revolutionary War with Great Britain. In September of 1783, the treaty was signed, making the end of the war official.
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Answer:
In Europe, the Crusades led to economic expansion; increased trade and use of money, which undermined serfdom and led to prosperity of northern Italian cities. They led to increased power of the monarchs, and, briefly, to increased power of the papacy.