The First Council of Nicaea was convened in 325 AD by the Roman Emperor Constantine the Great to address various issues within the early Christian Church. It was the first ecumenical council, gathering bishops from across the Roman Empire to discuss theological disputes, particularly the nature of Jesus Christ and his relationship to God the Father. One of the key outcomes of the council was the formulation of the Nicene Creed, which established a unified statement of Christian faith. The council also addressed the date of Easter and condemned various heresies, including Arianism, which questioned the divinity of Christ.