- Break between Catholic Church and Eastern Orthodox Church
- Disputes: procession of the Holy Spirit, leavened or unleavened bread, iconoclasm, coronation of Charlemagne, papal supremacy, and See of Constantinople
- Patriarch Michael I Cerularius closed Latin churches in Constantinople
- Leo IX denied Cerularius the title 'ecumenical patriarch'
- Cerularius refused and was excommunicated by Leo IX
- Massacre of the Latins in 1182
- Sack of Thessalonica in 1185
- Siege of Constantinople and Fourth Crusade in 1204
- Schism continues to present day
Wednesday, March 18, 2026
Collection of facts about the East-West Schism
This post is a collection of facts about the East-West Schism (1054). There are 9 facts listed below. Source: Wikipedia