Arianism

Arianism () is a Christological doctrine that rejects the traditional notion of the Trinity, teaching that Jesus was created by God and is therefore distinct from God. It is named after its proponent Arius (250 or 256 – 336 AD) and is regarded as heretical by most modern mainstream branches of Christianity. Arianism is held by a minority of modern denominations, although some of these groups espouse related doctrines such as Socinianism, and others avoid the term "Arian" because of its historically negative connotations. Modern denominations sometimes associated with the teaching include Jehovah's Witnesses and some churches within the Churches of Christ (among them the movement's founder, Barton W. Stone).

It is first attributed to Arius, a Christian presbyter who preached and studied in Alexandria, Egypt, though Arianism developed out of various preexisting strands of Christianity that differed from later Nicene Christianity in their Christologies. The term Arian is derived from the name Arius; it was not what the followers of Arius's teachings called themselves, but rather a term used by outsiders. Arian theology holds that Jesus is the Son of God, who was begotten by God the Father, with the difference that the Son of God did not always exist but was begotten/made before time by God the Father. Therefore, Jesus was not coeternal with God the Father, but nonetheless Jesus began to exist outside time.