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The Eastern Orthodox Church did not exist before 1054. In that year, most of the Eastern Rites in the Church split. The half that stayed with the Catholic Church are called Uniate Rites, the half that made their own Church are referred to as Orthodox.
from A Catholic Dictionary, edited by Donald Attwater, Second edition, revised 1957
The Schism of the East the estrangement and severance from the Holy See of what is now called the Orthodox Eastern Church was a gradual process extending over centuries. After a number of minor schisms the first serious, though short, break was that of Photius; from then on tension between East and West increased, and the schism of Cerularius occurred in 1054. From then on the breach gradually widened and has been definitive since 1472. There was a formal union from the 2nd Council of Lyons in 1274 until 1282, and a more promising one after the Council of Florence from 1439 to 1472. After the capture of Constantinople it was in the Turkish interest to reopen and widen the breach with the powerful Roman church; the patriarchates of Alexandria, Antioch, and Jerusalem were dragged into this policy, Russia and the Slav churches stood out the longest of any: none of these churches, except Constantiople itself in 1472, formally and definitely broke away from the unity of the Church. But in the course of centuries the schism has set and crystallized into a definite separation from the Holy See of many million people with a true priesthood and valid sacraments. The origins, causes and development of the schism are matters of much complication, still not fully unraveled.
It's just Catholic, not Roman Catholic. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is never used by the official Catholic Church.
To answer your question, it didn't, the Orthodox left the Catholic Church in 1054, nothing changed in 1504.
It did not change, as there was no Eastern Orthodox Church before 1054, that is the year that the Schism of the East became formalized and the Eastern Orthodox Church came into existence.
The Patriarch of Caonstantinople and representatives of the Pope excommunicated each other, officially starting the Great Schism.
schism.....
The East–West Schism, commonly referred to as the Great Schism of 1054, is the break of communion between what are now the Eastern Orthodox and Catholic Churches, which began in the 11th century and continues.
The split between the Eastern Orthodox and the western Catholic Churches was caused by a number of different factors. Namely, neither side could decide on the Pope's role in the church, or the scope of his authority.
Your question is too general. There are many things that were not a cause of tension between these belief systems. The colour of my dog for instance
The Great Schism was between the Roman Catholic Church and the Eastern Orthodox Church (or Catholicism and Eastern Orthodox).
To differentiate between Eastern Orthodox, Oriental Orthodox, Assyrian Church of the East one would use Roman Catholic.
Both began as forms of European Christianity. -Apex- :)
The Roman Catholic Church is normally known for using fresco's and Statues in their churches. Whereas The Eastern Orthodox Church uses mosaics and icons, with a small percentage of the time they will also use fresco's .
Christianity was split between the roman catholic church and the eastern orthodox church
Short answer: it was one of the causes of the split between the western and eastern Christian churches. The result of the split (schism) is the Catholic church (western) and Orthodox church (eastern).
Roman Catholics believe in Papal Primacy, Papal Infallibility, the Immaculate Conception, and Purgatory while Eastern Orthodox people do not. Roman Catholics believe that the Holy Spirit proceeds from the Father and the Son, while Eastern Orthodox people believe that the Holy Spirit only proceeds from the Father.
There are several theological and political factors, but primarily the authority of the Pope