Answer:
The Reformation was a turning point in the way people thought. The movement exploded in Germany and spread throughout Europe. The idea of freedom from authority spread to the peasants who revolted against the nobility and royal oppressors.
I believe the answer you're looking for is the factory system.
One of the most important changes Charlemagne made was abandoning the gold standard and putting all of Europe on the same silver currency<span>. Trade became easier and the continent prospered, aided by laws that took some power away from the nobles and let the peasantry participate in commerce. </span>