 Scholars also dispute whether this creed was simply an expansion of the Creed of Nicaea, or whether it was an expansion of another traditional creed similar but not identical to the one from Nicaea.In 451, the Council of Chalcedon referred to this creed as "the creed ... of the 150 saintly fathers assembled in Constantinople", indicating that this creed was associated with Constantinople (381) no later than 451.This council condemned Arianism which began to die out with further condemnations at a council of Aquileia by Ambrose of Milan in 381.