The Council of Chalcedon was a significant ecclesiastical assembly that convened in what is now modern-day Turkey, with the first session beginning on 8 October 451. The primary aim was to address the increasing theological disputes that had arisen since the previous council, especially regarding the nature of Christ and the controversies surrounding Nestorianism and Monophysitism. This gathering marked a critical moment for the Christian church, as over 520 bishops from various provinces, including representatives from both the Eastern and Western branches of Christianity, were in attendance. The bishops sought to achieve consensus on the complicated issues concerning the dual nature of Christ as both fully divine and fully human.In addition to doctrinal discussions, the council also dealt with various administrative and disciplinary issues affecting the church at the time. It was held in the city of Chalcedon, which was selected for its strategic location near the capital of the Roman Empire. The proceedings lasted for several weeks, during which the bishops examined theological positions and debated their implications for the broader Christian community. The outcome of the council ultimately led to the formation of the Chalcedonian Definition, a cornerstone of Christian orthodoxy that articulated the belief in the two natures of Christ, influencing Christology for centuries to come.Chalcedon became a foundational moment in establishing theological clarity within Christianity. The convening of the council also indicated the growing necessity for the church to address conflicts internally, as external pressures continued to shape the early Christian landscape. The final decrees generated by the council would confront and challenge alternative theological views prevalent in some regions, setting a precedent for future councils and enhancing the church's authority in matters of faith.