There are several 'orthodox' churches. Each may have a different yiew
There is an Orthodox Church and a Catholic Church. There is no Catholic Orthodox Church.
Eastern Orthodox Church (or the Christian Orthodox Church).
No, the Greek Orthodox church is a part of the Eastern Orthodox Churches.
Anglican Orthodox Church was created in 2001.
The Orthodox Church of Greece (Eastern Orthodox Church).
Its a faith (church). Bulgarians follow Orthodox church
The Coptic Orthodox Church
The Romanian Orthodox Church mainly follows the liturgical practice of the Greek Orthodox Church, rather than the Russian Orthodox Church, such as the use of the new calendar.
Syriac Orthodox Church's population is 5,600,000.
Japanese Orthodox Church was created in 1886.
The population of Orthodox Church in America is 1,000,000.
Romanian Orthodox Church's population is 18,806,428.