The Council of Ephesus was an important church assembly held in 431 AD in the city of Ephesus, located in present-day Turkey. It was convened by Emperor Theodosius II to address the growing controversy surrounding the nature of Christ and the role of the Virgin Mary. The council aimed to resolve disputes between different Christian factions, particularly regarding the teachings of Nestorius, who was accused of heresy for his views on the dual nature of Christ. During the council, the bishops affirmed the title of Theotokos (God-bearer) for Mary, emphasizing her role as the mother of Jesus Christ, who is both divine and human. The council ultimately condemned Nestorius and his teachings, leading to significant theological developments in early Christianity. The decisions made at the Council of Ephesus had a lasting impact on the Christian faith and its understanding of Christ's nature.