The effect of the "Great" or "Eastern" Schismon catholicism was a break in the communion between the Roman Catholic and Orthodox Churches in 1054.
In spite of the fact that a division between the Eastern and the Western regions of the Church had become increasingly visible for centuries, a formal split, well known as The Great Schism happened in 1054 resulting in fundamental effects on the Christian world, back then, and still today.
The first major issue was the clash between the notion of papacy, according to which, on the pne hand the Bishop of Rome claimed to be the vicar of Christ on earth and have power over all other bishops as a "Pope." And ont he other hand, the eastern concepts of the "pentarchy" in which each bishop is responsible for his own diocese but the five patriarchs, bishops of the major cities of Rome, Jerusalem, Antioch, Constantinople, and Rome, are "primus inter pares."
