The term "Nicene" primarily refers to the Nicene Creed, a statement of Christian faith established during the First Council of Nicaea in 325 AD. This council was convened by Emperor Constantine to address various theological disputes, particularly concerning the nature of Jesus Christ and his relationship to God the Father. The Nicene Creed affirms the belief in the Trinity and the divinity of Christ, serving as a foundational document for many Christian denominations. The Nicene Creed was revised at the Second Ecumenical Council in 381 AD, leading to what is often called the Niceno-Constantinopolitan Creed. This version further clarified the Church's teachings and is still recited in many Christian liturgies today. The Nicene tradition has played a significant role in shaping Christian doctrine and unity throughout history.