Dr. John Rao treats here of the roots of Arianism, its rather simple basic beliefs, and its expansion in the wake of the Council of Nicaea through till the victory of the orthodox at the Council of Constantinople. The Arian Crisis of the 300's is shown to be very much tied in with political machinations and episcopal "empire-building". Reaction to it did, however, lead to a sound development of Catholic doctrine. Taken from: Early Christianity and Late Antiquity - 1993 VonHildebrand Institute