Eastern Orthodox Christianity is one of the oldest branches of Christianity, tracing its roots back to the early Christian communities established by the apostles. It is characterized by its adherence to the traditions and teachings of the Early Church Fathers and emphasizes the importance of the Seven Sacraments, including baptism and communion. The Eastern Orthodox Church is organized into various autocephalous (independent) churches, each led by a bishop. The Ecumenical Patriarch of Constantinople is considered the spiritual leader, but each church maintains its own governance. Worship is rich in tradition, often featuring elaborate liturgies and the use of icons in religious practices.