"Modalists" or "Sabellians" or "Jesus Only". Denominations within the Sabbatarian tradition (Armstrongism) believe that Christ the Son and God the Father are co-eternal, but do not teach that the Holy Spirit is a being or person. Armstrong theology holds that God is a "Family" that expands eventually, that "God reproduces Himself", but that originally there was a co-eternal "Duality", God and the Word, rather than a "Trinity". Swedenborgianism holds that the Trinity exists in one person, the Lord God Jesus Christ. The Father, the being or soul of God, was born into the world and put on a body from Mary. Throughout his life, Jesus put away all human desires and tendencies until he was completely divine. After his resurrection, he influences the world through the Holy Spirit, which is his activity. In this view, Jesus Christ is the one God; the Father as to his soul, the Son as to his body, and the Holy Spirit as to his activity in the world. This view is very similar in many ways to Sabellianism, Modalism, Oneness, or Jesus Only beliefs. Numerous Unitarian Christian organizations exist around the world, the oldest of which is the Unitarian Church of Transylvania. An umbrella organization for these groups is the International Council of Unitarians and Universalists, though only some members and affiliates of that body consider themselves exclusively or predominantly Christian. In the United States, "Unitarian" often refers to members and congregations within the Unitarian Universalist Association (UUA), a non-Christian group formed in 1961 from the merger of the American Unitarian Association with the Universalist Church of America. Though both of these predecessor groups were originally Christian, the UUA does not have a shared creed and does not identify as a Christian Unitarian organization. History Early Christianity Although nontrinitarian beliefs continued and were dominant among some peoples—for example, the Lombards, Ostrogoths, Visigoths and Vandals—for hundreds of years, the Trinity doctrine eventually gained prominence in the Roman Empire. Nontrinitarians typically argue that early nontrinitarian beliefs, such as Arianism, were systematically suppressed (often to the point of death). After the First Council of Nicaea, Roman Emperor Constantine I issued an edict against Arius' writings, which included systematic book burning. In spite of the decree, Constantine ordered the readmission of Arius to the church, removed the bishops (including Athanasius) who upheld the teaching of Nicaea, allowed Arianism to grow within the Empire and to spread to Germanic