The Nicene-Constantinopolitan Creed (also called the Nicene Creed, the Symbol of Faith, the Pistevo, or simply the Creed) is that creed formulated at the First and Second Ecumenical Councils. It was defined by the Holy Fathers of those first two councils (held in Nicea and Constantinople, respectively) to combat various heresies: notably Arianism, Apollinarianism, Macedonianism (also called Pneumatomachianism), and Chiliasm.