Answer: learning, trade, and the fine arts suffered.
Explanation:
The Middle ages of Europe saw the dominance of Christianity extended as the Papacy became very rich and very powerful. As such, the Popes and national Christian authorities could make demands of countries and claim divine punishment for those who disobeyed.
This led to the suppression of any thing that was deemed ungodly and so learning and fine arts suffered unless it was Christian related. Trade also suffered as vast areas of the continent went through war and incursions so travelling from place to place was unsafe.
