what were the three main reason why the roman catholic church and the eastern orthodo

what is The Great Schism?

http://orthodoxwiki.org/Great_Schism

You can blame the centuries long argument over the idea of the Trinity for that one. It was the basis for their separation.

The Orthodox and Catholic Churches were one and the same until they separated from one another in 1054 mainly over the role of the Pope.

There are very few theological differences. The main difference is that the Orthodox Churches (http://www.newadvent.org/cathen/11329a.htm) use the Byzantine Rite (http://www.newadvent.org/cathen/04312d.htm) and the Catholic Church use the Roman or Latin Rite.

Another difference is the Filioque clause in the Nicene Creed, the original which the Orthodox follow is
"And in the Holy Spirit, the Lord, and giver of life, who proceeds from the Father."
And the Catholic revision is:
And in the Holy Spirit, the Lord, and giver of life, who proceeds from the Father and the Son."
http://en.wikipedia.org/wiki/Filioque

Pope John Paul II said of the Orthodox Churches in Orientale Lumen, "A particularly close link already binds us. We have almost everything in common."

For the entire document, see: http://www.vatican.va/holy_father/john_paul_ii/apost_letters/documents/hf_jp-ii_apl_02051995_orientale-lumen_en.html

With love in Christ.

The chief differences which caused the split between Orthodox Christianity and Roman Catholicism:

Orthodoxy believes
* the Holy Spirit proceeds from the Father (Nicene Creed and John 15:26)
* the regional churches are united by meetings of their chief bishops, with no ruling bishop over all.

Roman Catholicism believes
* the Holy Spirit proceeds from the Father and the Son (an addition to the Creed)
* the Pope of Rome should be the presiding bishop over all Christianity

Later dogmas that are required for Roman Catholics to believe, but are not Orthodox dogmas:
* purgatory
* infallibility of the Pope
* the immaculate conception of Mary

Power struggle- creeds, money, who's in charge
Idiological beliefs- who has the right knowledge
stupidity- Jesus said they will know us by our love NOT our disagreements

1. We Orthodox are the right faith

2. The Catholics are the wrong faith

3. We were the cent re of civilization for 600 years. The Catholic nations were cellar-dwelling barbarians.