Answer:
Crusades were taking place, other important changes were occurring in medieval society. Between 1000 and 1300, agriculture, trade, and finance made significant advances. Towns and cities grew. This was in part due to the growing population and to territorial expansion of western Europe.
Can we get some explanation?
These words suggest that something is not perfect. It's to make something dim or less noticible. This is of course using my own words. The dictionary might say something else about these words.
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