years
1st- 1096-1099
2nd- 1145-49
3rd- 1189-1192
4th- 199-1204
Children’s- 1212
Reasons
1st- To take back control of Jerusalem, The Holy Land
2nd- In response to the of the County of Edessa in 1144 to the forces of Zengi. The county had been founded during the First Crusade and they worked to reclaim it
3rd-King Henry II of England and King Philip II of France (known as "Philip Augustus") ended their conflict with each other by leading a new crusade
4th- Was stated that the purpose was to recapture the city of Jerusalem from Muslim control.
Children’s- Establish a second Latin Kingdom in the Holy Land of Jerusalem
Key events
1st-
* Recruitment.
* Siege of Nicaea.
* Battle of Dorylaeum.
* Siege of Antioch.
* Continued march to Jerusalem.
* Siege of Jerusalem.
* Establishment of the Kingdom of Jerusalem.
* Battle of Ascalon.
* The crusader presence remained in the region in some form until the city of Acre fell in 1291,
*
2nd-
* . After crossing Byzantine territory into Anatolia, both armies were separately defeated by the Seljuk Turks-
* the Byzantine Emperor Manuel I Komnenos secretly hindered the crusaders' progress
* armies reached Jerusalem and participated in 1148 in an ill-advised attack on Damascus
* Decided Muslim victory
3rd-
* Taking the cross.
* Protecting the Jews.
* Diplomatic preparations.
* Mustering an army.
* Passage through the Balkans.
* Turkish territory.
* Passage.
* Siege of Acre.
* finalized the Treaty of Jaffa
* Failure to recapture Jerusalem
4th-
*
* Loss of Jerusalem to the truce of 1198.
* Constantinople.
* Attack on Zara.
* Decision to go to Constantinople.
* Siege of July 1203.
* Reign of Alexios IV.
* War against Alexios V.
* Sack of Constantinople.
* The Nicaean Empire eventually recovered Constantinople and restored the Byzantine Empire in 1261.
Children’s-
* Left France led by Stephen of Cloyes
* Visions
* Intention to peacefully convert Muslims
* Children march in Italy
* Children sold to slavery in Tunis
Results
1st- The crusader presence remained in the region in some form until the city of Acre fell in 1291,
2nd-Decided Muslim victory
3rd- Failure to recapture Jerusalem
4th-The Nicaean Empire eventually recovered Constantinople and restored the Byzantine Empire in 1261.
Children’s- They failed
I hope this helped, I tried my best!
Also, on that topic, Jesus WAS a historically real person which is awesome and He’s the ONLY way literally into a good afterlife or Heaven so I recommend starting a relationship with Him. Other than that have an awesome day :)