Columbia subject headings:
Harvard subject headings:
Aksum (Kingdom)--Civilization.
Aksum (Kingdom)--History.
Byzantine Empire--Influence.
Byzantine Empire--Relations--Aksum (Kingdom)
Princeton subject headings:
Aksum (Kingdom)--Civilization.
Aksum (Kingdom)--History.
Aksum (Kingdom)--Relations--Byzantine Empire.
Byzantine Empire--Influence.
Byzantine Empire--Relations--Aksum (Kingdom).