East–West Schism

division of Christianity into two large parts in 1054

7 dated entries naming East–West Schism, drawn from 6 separate years between 1000 CE and 2016 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

Also written as East-West Schism in the source articles; Wikipedia redirects those to the same subject, so their entries are on this page.

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10th century

1000The papacy during this time was in a period of decline, in retrospect known as the saeculum obscurum ("Dark Age") or "pornocracy" ("rule of harlots"), a state of affairs that would result in the Great Schism between Roman Catholicism and Eastern Orthodoxy later in the 11th century.source

11th century

1054July 16 – East-West Schism: Humbert of Silva Candida, representative of the newly deceased Leo IX, breaks the relations between Western and Eastern Churches, through the act of placing an invalidly-issued Papal Bull of excommunication during the celebration of the Divine Liturgy.source
1095March – Emperor Alexios I Komnenos send envoys to Pope Urban II at the Council of Piacenza and appeals to the Christian states of Western Europe for military aid against the Seljuk Turks. Urban responds favourably, hoping to heal the Great Schism of 40 years earlier, and to reunite the Catholic Church under papal primacy by helping the Eastern churches.source

13th century

1269Approximate date – Opizzo Fieschi, Latin patriarch of Antioch, is exiled, being displaced because of the East–West Schism of 1054.source

15th century

1439June 10 – Joseph II, the leader of the Eastern Orthodox Church as the 155th Ecumenical Patriarch of Constantinople, dies after a reign of 23 years, leaving a vacancy that is used by the Roman Catholic Pope Eugene IV to declare a unification of the two churches to end the East–West Schism of 1054.source
1439July 6 – Pope Eugene IV issues the Bull of Union with the Greeks (Laetentur Caeli), signed by the Byzantine Emperor John VIII Palaiologos, proclaiming the end of the East–West Schism between Roman Catholicism and Eastern Orthodoxy and the union of the two divisions of the Christian faith. The bull is repudiated by most Eastern bishops shortly thereafter.source

21st century

2016February 12 – Pope Francis and Patriarch Kirill sign an Ecumenical Declaration in the first such meeting between leaders of the Catholic and Russian Orthodox Churches since their schism in 1054.source