RU 
UK The Orthodox Church is one of the branches of Christianity, most widespread in Eastern Europe, the Middle East, and some regions of Asia.
Orthodox doctrine is based on faith in the Trinity (Father, Son, and Holy Spirit) and acknowledges Jesus Christ as the Son of God and the Savior of humanity. The Orthodox Church claims continuity with the apostolic church and adheres to traditional rituals and ceremonies, including services, baptism, marriage, repentance, and more. The Church has its own hierarchy, including patriarchs, metropolitans, bishops, and clergy. It also plays a significant role in the cultural and social life of many countries.
Ecumenical Councils
The Orthodox Church recognizes seven Ecumenical Councils. These councils were held between the 4th and 8th centuries in the Byzantine Empire and addressed issues related to theology, doctrine, worship, and Church discipline. The decisions made at these councils are binding for all Orthodox Christians.
Table: Autocephalous Orthodox Churches in the World
| № | Name of the Church | Head of the Church | Main City | Year of Autocephaly |
|---|---|---|---|---|
| 1 | Orthodox Church of Constantinople | Bartholomew I | Istanbul (Constantinople) | 325 |
| 2 | Orthodox Church of Alexandria | Theodore II | Alexandria | 1st century |
| 3 | Orthodox Church of Antioch | John X | Damascus | 1st century |
| 4 | Orthodox Church of Jerusalem | Theophilos III | Jerusalem | 1st century |
| 5 | Orthodox Church of Russia | Kirill | Moscow | 1589 |
| 6 | Orthodox Church of Georgia | Ilia II | Tbilisi | 486 |
| 7 | Orthodox Church of Serbia | Porfirije | Belgrade | 1879 |
| 8 | Orthodox Church of Romania | Daniel | Bucharest | 1885 |
| 9 | Orthodox Church of Bulgaria | Neophyte | Sofia | 870 |
| 10 | Orthodox Church of Cyprus | Chrysostomos II | Nicosia | 431 |
| 11 | Orthodox Church of Greece | Ieronymos II | Athens | 1833 |
| 12 | Orthodox Church of Poland | Sawa | Warsaw | 1924 |
| 13 | Orthodox Church of the Czech Lands and Slovakia | Rastislav | Prague | 1951 |
| 14 | Orthodox Church of Albania | Anastasios | Tirana | 1922 |
| 15 | Orthodox Church of Ukraine | Epiphanius | Kyiv | 2019 |