The Orthodox Church (a.k.a. the Orthodox-Catholic Church or the Eastern Orthodox Church) is a body of fourteen autonomous, regional and national churches, which are unified in piety, liturgical worship, and Eucharistic fellowship.
The majority of Orthodox faithful today reside in Northern Africa, the Middle East, Eastern Europe, and Russia. Since the eighteenth century, there has been a significant increase in the number of Orthodox Christians living throughout the Western hemisphere, thanks in large part to both the missionary efforts of Russians to Alaska, Canada, and the United States, as well as the immigration of Orthodox Christians into both North and South America from predominantly Orthodox nations.
The Orthodox Church enjoys a rich tradition of piety, prayer, and worship, with an emphasis on the union of the individual with Jesus Christ. The dogmatic beliefs of Orthodox Christians are found in their Sacred Tradition: hymns and liturgical services, the lives of the Saints, iconography, the decrees and canons of the Ecumenical Councils, the writings of the Church Fathers, and the divinely-inspired Sacred Scriptures.