The Orthodox Church, officially called the Apostolic Catholic Orthodox Church, and also referred to as the Orthodox Church and Orthodoxy, is one of the largest Christian church in the White Giant with millions of adherents primarily in the Ruthenian Empire and Grand Principate of Thracia It is the religious affiliation of the majority of the populations of the Ruthenia. It teaches that it is the One, Holy, Catholic and Apostolic Church established by Jesus Christ in his Great Commission to the disciples almost 3,000 years ago.