The Antiochian Orthodox Christian Archdiocese of North America (often referred to in North America simply as the Antiochian Archdiocese) is the sole jurisdiction of the Antiochian Orthodox Church in the USA and Canada with exclusive jurisdiction over the Antiochian Orthodox faithful in those countries, though these faithful were originally cared for by the Russian Orthodox Church in America (indeed, the first bishop consecrated in North America, St. Raphael Hawaweeny, was consecrated by the Russian Orthodox Church in America to care for the Orthodox Arab faithful in the USA and Canada).
The Church of Antioch is one of the five Christian churches that composed the One Holy Catholic and Apostolic Church before the East-West Schism(in 1054). The Church traces its origins to the Christian community founded in Antioch by the Apostles St. Peter and St. Paul. It later became one of the five major patriarchates of early Christianity.
In the Bible, Acts 11:19-26 states that the Christian community at Antioch began when Christians who were scattered from Judea because of persecution went to Antioch. They were joined by Christians from Cyprus and Cyrene who migrated to Antioch. It was in Antioch that the followers of Jesus were first referred to as Christians.