In 1054, the Eastern and Western branches of Christianity formally split, leading to the establishment of Catholicism in the West and Orthodoxy in the East.
This event is known as the Great Schism.
They formally split the Christian Church apart They created two completely separate churches.
The two Christian churches that developed after the split in 1054 are the Roman Catholic Church, based in Rome and headed by the Pope, and the Eastern Orthodox Church, which has its headquarters in Constantinople (modern-day Istanbul) and is led by various patriarchs.
The excommunications of 1054 led to the Great Schism between the Roman Catholic Church and the Eastern Orthodox Church. This division created a lasting rift between the two branches of Christianity that persists to this day.
The result of excommunications in 1054 was the Great Schism, when the Eastern Orthodox Church and the Roman Catholic Church split. This schism created a permanent division between the Eastern and Western branches of Christianity, leading to differences in doctrine, theology, and church structure that persist to this day.
The very early days of Christianity apparently saw considerable diversity within the Christian community, as evidenced by the comments of authors such as Paul and Matthew. It may be that the earliest Christian sect was called the Ebionites, however, the Ebionites soon faded from history. Most early Christian sects are generally known today as Catholic-Orthodox Christianity and Gnosticism. We can not really say whether Gnosticism preceded the Catholic-Orthodox Christian faith, or the other way around, although modern churches do insist that Gnosticism arose after Catholic-Orthodox Christianity. However, Gnosticism was never a centalised faith, and never had a strong hierarchy, so was at a disadvantage against the Catholic-Orthodox Christian faith. When Emperor Constantine gave state patronage to Catholic-Orthodox Christianity and authorised it to take over the assets of the Gnostic Churches, the Gnostic Churches were ultimately doomed. The Great Schism of 1054 CE saw Catholic-Orthodox Christianity finally split into the Roman Catholic and the Orthodox branches, which are equally old.
I assume you mean the official split into Eastern Orthodoxy and Roman Catholicism, which happened in 1054.
They were mostly Christian, and after 1054, split from the catholic, or universal church, and are usually referred to as "Greek Orthodox."
in the year 1054 AD
Roman Catholicism
The Orthodox Church split from the Catholic Church.
Battle of Mortemer happened in 1054.
Battle of Atapuerca happened in 1054.
The very early days of Christianity apparently saw considerable diversity within the Christian community, as evidenced by the comments of authors such as Paul and Matthew. Some of the very early Christian sects include Ebionites, Nazarenes, Nazoraeans, Cerinthians and Carpocratians, as well as what was later to become known as the proto-Catholic Orthodox Church. With the strong support of Emperor Constantine, the Catholic Orthodox Church became the dominant Christian Church and eventually the state religion of Rome. After the Great Schism of 1054, the then universal Catholic Orthodox Church split into the separate Roman Catholic and Orthodox branches of Christianity. So, although Catholicism has roots going back to the very beginning of Christianity, it really only separated from its sister Orthodox Churches in 1054 CE.
The Churches that came out of the Great Schism of 1054 both claimed to be the original Christian Church. One was the Roman Catholic Church and the other was the Orthodox Church, although this is a more general term for a group of Churches with more than one Patriarch.
The Roman Catholic Church and the Eastern Orthodox Church.
The Greek Orthodox Church is one of the oldest Christian traditions, tracing its roots back to the early Christian communities in Byzantium in the first century AD. It officially became separate from the Roman Catholic Church in 1054 with the Great Schism.
They formally split the Christian Church apart They created two completely separate churches.