http://www.fr-d-serfes.org/orthodox/inceptionoforthodoxchurch.htm
Excerpted:
Can you tell me when and was the Orthodox Church founded?
The Orthodox Church was founded on the Day of Holy Pentecost in Jerusalem in 33 AD, fifty days after the Holy Resurrection of Jesus Christ our true God. It has preserved the original teachings of Jesus Christ and His Apostles form that time until the present. The first major Bishops of the Church (known as Patriarchs) have remained Orthodox up to the present. They are the Patriarchs of Jerusalem, Antioch, Alexandria, and Constantinople. Later onwards other Patriarchs also began to develop within the Orthodox Church: Russia, Romania, Serbia, Bulgaria, and Albanian.
Was the Roman Catholic Church a part of the Orthodox Church?
Yes, the Roman Catholic Church was a part of the Orthodox Church, believing and teaching the same doctrines and Sacred Tradition, until 1054. It was the Roman Catholic Church that broke away from the Orthodox Church. In that year the Patriarch of Rome, or the bishop of Rome, also known as the Pope of Rome broke away from the original Church by making unacceptable claims of authority over the entire Christian Church. Since then, the Roman Catholic Church has added new teachings, which the ancient Christian Church above rejects. One of these is the Doctrine of the Infallibility of the Pope. Not only this doctrine but also other matters of the faith have developed within the Roman Catholic Church which has since has separated both these Churches.
Can you tell me what other matters separate the Roman Catholic Church and the Eastern Orthodox Church besides the issue of the Primacy of the Pope?
What separates the Roman Catholic Church and the Eastern Orthodox Church is not only the Primacy of the Pope also known as the Infallibility, but also the following innovations of the Roman Catholic Church: The Procession of the Holy Spirit. Purgatory and indulgences. The Immaculate Conception of the Virgin Mary. Assumption of the Virgin Mary. Invocation of the epiclesis. Unleavened Bread. Holy Communion. Divorce. Clergy's Martal Status.
[..]
All of the above Churches contain an element of the truth preserved by the "One Holy, Catholic, and Apostolic Church," but only the Orthodox Church has preserved and perpetuated the entire Christian Faith of the Ancient Church, based on the Sacred Scriptures and Sacred Tradition and the First Seven Ecumenical Councils.
Excerpted:
Can you tell me when and was the Orthodox Church founded?
The Orthodox Church was founded on the Day of Holy Pentecost in Jerusalem in 33 AD, fifty days after the Holy Resurrection of Jesus Christ our true God. It has preserved the original teachings of Jesus Christ and His Apostles form that time until the present. The first major Bishops of the Church (known as Patriarchs) have remained Orthodox up to the present. They are the Patriarchs of Jerusalem, Antioch, Alexandria, and Constantinople. Later onwards other Patriarchs also began to develop within the Orthodox Church: Russia, Romania, Serbia, Bulgaria, and Albanian.
Was the Roman Catholic Church a part of the Orthodox Church?
Yes, the Roman Catholic Church was a part of the Orthodox Church, believing and teaching the same doctrines and Sacred Tradition, until 1054. It was the Roman Catholic Church that broke away from the Orthodox Church. In that year the Patriarch of Rome, or the bishop of Rome, also known as the Pope of Rome broke away from the original Church by making unacceptable claims of authority over the entire Christian Church. Since then, the Roman Catholic Church has added new teachings, which the ancient Christian Church above rejects. One of these is the Doctrine of the Infallibility of the Pope. Not only this doctrine but also other matters of the faith have developed within the Roman Catholic Church which has since has separated both these Churches.
Can you tell me what other matters separate the Roman Catholic Church and the Eastern Orthodox Church besides the issue of the Primacy of the Pope?
What separates the Roman Catholic Church and the Eastern Orthodox Church is not only the Primacy of the Pope also known as the Infallibility, but also the following innovations of the Roman Catholic Church: The Procession of the Holy Spirit. Purgatory and indulgences. The Immaculate Conception of the Virgin Mary. Assumption of the Virgin Mary. Invocation of the epiclesis. Unleavened Bread. Holy Communion. Divorce. Clergy's Martal Status.
[..]
All of the above Churches contain an element of the truth preserved by the "One Holy, Catholic, and Apostolic Church," but only the Orthodox Church has preserved and perpetuated the entire Christian Faith of the Ancient Church, based on the Sacred Scriptures and Sacred Tradition and the First Seven Ecumenical Councils.