What kind of council was the council of nicea?

The Council of Nicaea, convened in 325 AD by Emperor Constantine, was the first ecumenical council of Christian leaders. It aimed to address the Arian controversy regarding the nature of Christ and establish a unified Christian doctrine, particularly the Nicene Creed. The council affirmed the divinity of Jesus, declaring Him "true God from true God," and established foundational principles for the Christian faith. It also addressed various administrative issues within the Church, setting important precedents for future councils.