The Armenian Apostolic Church is one of the oldest Christian denominations in the world, tracing its roots back to the early 4th century. It was the first nation to adopt Christianity as its state religion in 301 AD, largely due to the efforts of Saint Gregory the Illuminator. The church follows a unique tradition and liturgy, emphasizing the importance of the Apostolic succession. The Armenian Apostolic Church is part of the larger family of Oriental Orthodox Churches, which do not accept the Council of Chalcedon. Its teachings and practices are deeply intertwined with Armenian culture and identity, making it a significant institution for the Armenian people both in Armenia and the diaspora.