Complex sentence: The people called Frumentius "Kesate Birhan" (Revealer of Light) and Abba Salama (Father of Peace), and he became the first "Abune"--a title given to the head of the Ethiopian Church.
Split into simpler sentences: The people called Frumentius "Kesate Birhan" (Revealer of Light) and Abba Salama (Father of Peace). He became the first "Abune"--a title given to the head of the Ethiopian Church.