Christianity is a main religion in Abkhazia. The history of introduction of Christianity in the present-day Abkhazia can be traced to the 1st century[1] and in 325 the bishop of Pityus participated in the First Ecumenical Council in Nicaea.[2] Since the late 9th century, the Orthodox dioceses of Abkhazia were subordinated to the Georgian Orthodox Church, later functioning there as the Catholicosate of Abkhazia.