What are the causes of the Crusades?

Religious reasons

Explanation:

Know that this is from my memory but I learned about these recently. The crusades were to promote christianity. they did some good things like open up trade routes and introduce countries to each other but they also pillaged and killed those who would not convert.

Hope this helps:)

Cause of the Crusades - 3000 Christian Pilgrims massacred in Jerusalem Religious Conviction The Instinct to Fight The Preaching of Peter the Hermit The Threat of the Turks The Council of Clermont led by Pope Urban II Cause of the Crusades Cause of the Crusades - 3000 Christian Pilgrims massacred in Jerusalem

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

europe would not recognize the confederacy as an independent nation.