It was the year 325 AD. The Christian emperor Constantine had invited leading ministers from throughout the world to gather for a meeting in the city of Nicaea, which was located in what is now northwest Turkey. The purpose of the meeting, which became known as the Council of Nicaea, was to settle an important theological dispute that had risen in the churches within the Empire. At the heart of the controversy were questions about the deity of the Son of God, and His relationship to the Father.