Arianism is a theological doctrine that originated in the early Christian church, named after the priest Arius, who lived in the 4th century. It holds that Jesus Christ is the Son of God but is distinct from and subordinate to God the Father. Arianism asserts that Christ was created by the Father and therefore is not co-eternal or of the same essence as the Father, which contrasts with the orthodox Christian belief in the Trinity. The teachings of Arianism were condemned at the Council of Nicaea in 325 AD, leading to the formulation of the Nicene Creed, which affirms the co-equal and co-eternal nature of the Father, Son, and Holy Spirit.
