Held in Constantinople in 553. Under Emperor Justinian the Great. 165 Bishops were present.
Held in Chalcedon, near Constantinople, 451. Under Emperor Marcian. 630 Bishops were present.
Held in Ephesus, Asia Minor in 431 under Emperor Theodosius II (grandson of Theodosius the Great). 200 Bishops were present.
Held in Constantinople in 381. Under Emperor Theodosius the Great. 150 Bishops were present.
Held in Nicea, Asia Minor in 325. Under Emperor Constantine the Great. 318 Bishops were present.
Conclusions from the Inter-Orthodox Conference on Environmental Protection.
A review of environmental activities and initiatives undertaken by the Orthodox Church.