The Council of Nicaea was a significant gathering of Christian bishops convened in 325 AD by the Roman Emperor Constantine. Its main purpose was to address the growing divisions within Christianity, particularly the Arian controversy, which questioned the nature of Jesus Christ and his relationship to God the Father. The council produced the Nicene Creed, a statement of faith that affirmed the divinity of Christ. The council also established important church practices and set a date for Easter, aiming to unify the Christian community. The decisions made at Nicaea had a lasting impact on the development of Christian doctrine and the structure of the early church.