How did the crusades have a positive effect on medieval Europe?

A. The turks were driven from the holy land permanently

B. Crusaders returned to Europe with new ideas

C. The crusades ended the great schism

D. Feudalism was stronger than ever

The answer is B) Crusaders returned to Europe with new ideas

Before the Crusades, European nations were medieval compared to Islamic countries which were some of the most sophisticated and advanced societies at the time.

Due to their interactions with the more advanced Arabs, Europeans got to know about soap, bathing, spices, sciences etc.

Eventually, this did result in the middle ages and the Renaissance movement.