* Cultural exchange: The Crusades brought Europeans into contact with new cultures, religions, and technologies. This led to a period of cultural exchange that had a profound impact on European thought and society.
* Political and social changes: The Crusades led to the rise of new political and social institutions, such as the military orders and the universities. These institutions played an important role in the development of European society.
* Technological advancements: The Crusades led to the development of new technologies, such as the crossbow, the siege engine, and the windmill. These technologies had a profound impact on European warfare and society.
* Religious fervor: The Crusades led to a renewed sense of religious fervor in Europe. This led to the rise of new religious movements and the development of new forms of religious art and literature.