What negative effect did the Crusades have on Europe?

The crusades of the 11th to 15th century CE have become one of the defining events of the Middle Ages in both Europe and the Middle East. The entire structure of European society changed during the 12th and 13th centuries. The Crusades were a series of religious wars between Christians and Muslims.

Explanation:

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.