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.
What type of church was most commonly constructed in the Byzantine Empire
Because the Romanian Orthodox Church adopted the new (Gregorian) calendar in 1924, along with the Greek Orthodox Church. The largest Orthodox church (the Russian Orthodox) continued to use the old (Julian) calendar, along with the Serbian Orthodox, to celebrate Christmas on 7 January each year.
The Orthodox Church of Greece (Eastern Orthodox Church).
Its a faith (church). Bulgarians follow Orthodox church
The Coptic Orthodox Church
Most Greeks are members of the Greek Orthodox Church.
Catholic.
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.