how did the catholic church lead to change in the middle ages
The beginning of the Middle Ages is often marked by the fall of the Roman Empire. During the Middle Ages, the Catholic Church gained a great deal of power.
The Catholic Church set both secular and religious laws during the Middle Ages. That is, the Pope set out the rules for people to follow. Monarchs were very closely tied with leaders in the Catholic Church.
The Catholic Church also led the Crusades to the Holy Land. The Crusades were in response to the Seljuk Turks taking over Jerusalem. The Crusades strengthened the role of the Catholic Church during the Middle Ages.