Title: Orient et Occident
Subjects: History, Councils and synods, Ecumenical, Church polity, Church history, Church, History of doctrines, Ecumenical Councils and synods, Église, Gouvernement, Conciles et synodes œcuméniques, Œcuménisme, Kerk, Organisatiestructuur, Algemene concilies, Ekklesiologie, Kirche, Struktur, Konstantinopel / Konzil <869-870>, Konstantinopel / Konzil <680-681>, Konstantinopel / Konzil <553>, Konstantinopel / Konzil <381>, Ephesus / Konzil <431>, Chalkedon / Konzil <451>, Nizäa / Konzil <787>, Nizäa / Konzil <325>, Councils and synods
Time periods: Primitive and early church, ca. 30-600, Middle Ages, 600-1500