The Ethiopian Orthodox Tewahedo Church had its beginnings during this period. Rufinus's Ecclesiastical History narrates that Saint Frumentius, a freed slave and tutor for the very young King, converted him to Christianity.
During this time period, the Ethiopian Orthodox Tewahedo Church was founded.  Saint Frumentius, a former slave who served as a tutor for the young king, played a key role in converting him to Christianity.