Christianity in Ethiopia is the largest religion in the country, the Ethiopian community at large, and dates back to the early medieval Kingdom of Aksum, when the King Ezana first adopted the faith in 4th century AD. This makes Ethiopia one of the first regions in the world to officially adopt Christianity. Various Christian denominations are now followed in the country. Of these, the largest and oldest is the Ethiopian Orthodox Tewahedo Church an Oriental Orthodox church centered in Ethiopia. This book "History Of Ethiopian Christianity", depicts the old church and Catholicism in Ethiopia. The early Christians, very fervent and devoted, ready to give up their lives for Christ.