Armenian Apostolic Church

The Armenian Apostolic Church (Armenian: Հայ Առաքելական Եկեղեցի, romanized: Hay Aṙaqelakan Ékełetsi) is the autocephalous national church of Armenia. Part of Oriental Orthodoxy, it is one of the most ancient Christian churches. The Armenian Apostolic Church uses the Armenian Rite. The Kingdom of Armenia was the first state in history to adopt Christianity as its official religion (under the Armenian Apostolic traditions) during the rule of King Tiridates III, of the Arsacid dynasty in the early 4th century.