events
Three Roman legates break relations between Western and Eastern Christian churches through the act of placing a papal bull of excommunication on the altar of Hagia Sophia during Saturday afternoon divine liturgy. Historians frequently describe the event as the formal start of the East–West Schism.
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Papal legate
Personal representative of the Pope
A papal legate or apostolic legate is a personal representative of the Pope to foreign nations, to some other part of the Catholic Church, or to representatives of a state or monarchy. A legate is empowered in matters of Catholic faith and for the settlement of ecclesiastical…Source: Wikipedia (CC BY-SA)
Western Christianity
Religious category of the Latin Church, Protestantism, and their derivatives
Western Christianity is one of two subdivisions of Christianity. Western Christianity is composed of the Latin Church and Western Protestantism, together with their offshoots such as the Old Catholic Church, Independent Catholicism and Restorationism.Source: Wikipedia (CC BY-SA)
Eastern Christianity
Christian traditions originating from Greek- and Syriac-speaking populations
Eastern Christianity comprises Christian traditions and church families that originally developed during classical and late antiquity in the Eastern Mediterranean region or locations further east, south or north. The term does not describe a single communion or religious…Source: Wikipedia (CC BY-SA)
Papal bull
Type of decree by the Catholic pope
A papal bull is a type of public decree, letters patent, or charter issued by the pope of the Catholic Church. It is named after the leaden seal (bulla) traditionally appended to authenticate it.Source: Wikipedia (CC BY-SA)
Excommunication
Censure used to deprive, suspend, or limit membership in a religious community
Excommunication is an institutional act of religious censure used to deprive, suspend, or limit membership in a religious community or to restrict certain rights within it, in particular those of being in communion with other members of the congregation, and of receiving the…Source: Wikipedia (CC BY-SA)
Hagia Sophia
Mosque and former church in Istanbul, Turkey
Hagia Sophia, officially the Hagia Sophia Grand Mosque, is a mosque and former museum and church serving as a major cultural and historical site in Istanbul, Turkey. The last of three church buildings to be successively erected on the site by the Eastern Roman Empire, it was…Source: Wikipedia (CC BY-SA)
East–West Schism
Break of communion between the Western and Eastern churches
The East–West Schism, also known as the Great Schism or the Schism of 1054, is the break of communion between the Catholic Church and the Eastern Orthodox Church. A series of ecclesiastical differences and theological disputes between the Greek East and Latin West preceded the…Source: Wikipedia (CC BY-SA)