The Acacians (/əˈkeɪʃən/), or perhaps better described as the Homoians (from gr. hómoios) or Homoeans (/hɒˈmiːən/),[1] were a non-Nicene branch of Christianity that dominated the church during much of the fourth-century Arian Controversy. They declared that the Son was similar to God the Father, without reference to substance (essence). Homoians played a major role in the Christianization of the Goths in the Danubian provinces of the Roman Empire.[1]
"Though Homoian Arianism derived from the thought both of Eusebius of Caesarea and of Arius, we cannot with confidence detect it before the year 357, when it appears in the Second Sirmian Creed."[2]