The Ethiopian Orthodox Tewahedo Church ,One of the few pre-colonial Christian Churches of sub Saharan Africa.  the Ethiopian Orthodox Tewahedo Church has a membership of between 45 and 50 million people,the majority of whom live in Ethiopia and is the largest of all oriental orthodox churches and is founding member of the world council of churches.Ethiopia is the second country historically, following only ARMENIA , to have officially proclaimed Christianity as state religion (in 333 AD), although some argue, on account of biblical references, that it may have been the first.Tewahedo  GEEZ  word meaning "being made one". This word refers to the Oriental Orthodox belief in the one perfectly unified Nature of Christ; i.e., a complete union of the Divine and Human Natures into one nature is self-evident in order to accomplish the divine salvation of humankind, as opposed to the "two Natures of Christ" belief commonly held by the ROMan church Union with the Coptic Orthodox Church continued after the Arab conquest of egypt. Abu Saleh records in the 12th century that the patriarch always sent letters twice a year to the kings of Abyssinia (Ethiopia) and nubia, until Al Hakim stopped the practice. Cyril, 67th patriarch, sent Severus as bishop, with orders to put down polgomy and to enforce observance of canonical consecration for all churches.Christ has "One Single Nature" where His Divinity absorbed His Humanity resulting in a "Simple"