- en.wikipedia.org Eastern Orthodox Church2.9 Russian Orthodox Church in the Russian Empire. 2.10 Eastern Orthodox churches under Communist rule. 2.11 Post-Communism to 21st century.
- christianity.com church/denominations/the-…Following the 1054 Great Schism, both the Western Church and Eastern Church continued to consider themselves uniquely orthodox and catholic.
- rbth.com lifestyle/331524-orthodox-christianity-…The Ecumenical Patriarch of the Church of Constantinople is considered “first among equals” in Orthodox Christianity.
- orthodoxchurchquotes.com types-of-orthodox-church/The Western Rite orthodox church is a branch of the Eastern Orthodox Church. Its rite is similar to that of the Celtic rite.
- http://orthodoxinfo.com general/orthodoxy.aspxToday Orthodox Church numbers approximately 300 million Christians who follow the faith and practices that were defined by the first seven ecumenical councils.
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- medium.com orthodoxy/orthodox-christianity-…Schisms and Councils Throughout history, the Orthodox Church faced several schisms, leading to the formation of various Orthodox jurisdictions.
- dw.com en/what-is-the-orthodox-church/a-45973747The Orthodox Catholic Church is commonly known as the Eastern Orthodox Church, partly to avoid confusion with the Roman Catholic Church.
- pravmir.com the-orthodox-church/Year Book And Church Directory Of The Russian Orthodox Greek Catholic Church Of America (Metropolia) , New York, N.Y., 1963, pp. 7-11.
- gotquestions.org Eastern-Orthodox-church.htmlThe head of each Orthodox church is called a “patriarch” or “metropolitan.” The patriarch of Constantinople (Istanbul, Turkey) is considered the ecumenical—or...