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the christians tried to take back the hold land but instead it became the most embarrassing move made by the roman catholic church. in other words,the crusades were a complete failure
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If you are talking about them trying to expand in to present-day Canada, then it brought renewed conflict with Britain (war of 1812)
if it is towards the west, i guess it hampered technological development, because most people were moving west through the trails, instead of staying to help build up the economy
hope this helps
D. Use money for paper trade.
The answer is D I believe <span />