Crusaders were so successful man!!
Arabs reached what is now Paris and took Sicily.
While the Turks reached Vienna and stayed in Europe until the 1900s.
If it wasnt for the Industrial Revolution which in fact had nothing to do with Christianity or the Crusades the Turks would have most likely stayed in the Balkans.
Crusader fanboys tell me how successful the crusades are because they beaten back the Muslims. While in reality they lost in thr Middle East also sacked Constantinople in 1204.
Crusaders were not just unleashed on Muslims but also other Christians, Jews, Heretic and Pagans like the Prussians, Lithuanians and the Latvians. Lithuania was one of the last European countries to embrace Roman Catholicism.