The Tewahedo Orthodox Church in Ethiopia is the largest Oriental Orthodox church in the world. Wikimedia Commons contributed this image. More than 36 million individuals belong to the Ethiopian Orthodox Tewahedo Church, the majority of whom live in Ethiopia. It is one of the last pre-European colonial Christian churches in Sub-Saharan Africa. Since its inception, it has been a member of the World Council of Churches. The Ethiopian Orthodox Tewahedo Church is affiliated to other Oriental Orthodox churches (the Eritrean Orthodox Tewahedo Church, the Coptic Orthodox Church of Alexandria, the Malankara Orthodox Syrian Church, the Armenian Apostolic Church and the Syriac Orthodox Church). The Ethiopian Orthodox Tewahedo Church was not formally acknowledged as a separate institution from the Coptic Orthodox Church of Alexandria until 1959, when Pope Cyril VI of Alexandria chose its own patriarch. Tewahedo is a Japanese word that signifies “oneness.” In contrast to the “two natures of Christ” view held by the Latin and Eastern Catholic and Orthodox churches, as well as the Anglican, Lutheran, and most other Protestant organizations, the Oriental Orthodox Church believes in Christ’s one perfect unity. According to Cyril of Alexandria, a key player in the fourth and fifth centuries Christological debates, the Oriental Orthodox Churches should have “one (mia) nature of God incarnate” and a hypostatic union. Unlike the other perspectives discussed in this article, the incarnate Christ has only one nature, but it is made up of both divine and human natures and retains all of their characteristics after the union.