First Council of Nicaea
The First Council of Nicaea was called by Constantine I upon the recommendations of a synod led by Hosius of Cordoba in the Eastertide of 325. To most bishops, the teachings of Arius were heretical and a danger to the salvation of souls. In the summer of 325, the bishops of all provinces came to Nicaea (now known as İznik, in modern-day Turkey), a place easily accessible to the majority of them, particularly those of Asia Minor, Syria, Palestine, Egypt, Greece, and Thrace.