The Russian Orthodox Church is one of the largest and oldest Christian denominations in Russia, tracing its roots back to the Christianization of Kievan Rus' in the 10th century. It is part of the Eastern Orthodox Church, which emphasizes tradition, liturgy, and the sacraments. The church plays a significant role in Russian culture and society, influencing art, music, and national identity. The church is governed by the Patriarch of Moscow, who oversees its spiritual and administrative functions. It has a hierarchical structure, with bishops and priests serving in various regions. The Russian Orthodox Church also engages in social and charitable activities, promoting moral values and community support.