Contacts between South Arabia and the Horn of Africa, from the Bronze Age to Islam. In Honor of Rémy Audouin.Over the course of a millennium and a half, from the Bronze Age to the advent of Islam, the Red Sea was a threshold between the Arabian Peninsula and the Horn of Africa. From the Nile Valley to the Arabian Desert, influences, wealth, craftsmen, patterns and ideas circulated, accompanying caravans and travelers. Long distance navigation was accompanied by cabotage from port to port demonstrating the extent to which seas are corridors rather than