*1073-1085 Hildebrand becomes Pope [[Gregory VII of Rome|Gregory VII]] and institutes [[Gregorian Reforms]], the largest increase of papal power in history, including the claim to be able to depose secular rulers.
*1075 Pope Gregory VII issues ''Dictatus papae'', an extreme statement of papal power.
*1080 (ca. 1078) -80 Council of Burgos reorganizes national Church of Spain as Roman Archbishopric, replaces use of Mozarabic rite with Roman. Sentences Bishops who refuse to recognize decrees to imprisonment.
*1095-1272 [[Crusades]] promise salvation to warriors from the West.
*1180 Last formal reception of Latins to communion at an Orthodox altar, in Antioch.