Crusades
Event
Military expeditions called for by Pope Urban II to reclaim the Holy Land, offering remission of sins to participants.
Mentioned in 2 videos
Videos Mentioning Crusades

Civilization #41: Dante's Quiet Revolution
Predictive History
A period when Europeans encountered the Muslim world, leading to the absorption of Islamic Golden Age culture and politics.

Secret History #24: Empire of Church
Predictive History
Military expeditions called for by Pope Urban II to reclaim the Holy Land, offering remission of sins to participants.