© World Encyclopedia 2005, originally published by Oxford University Press 2005. Aegean Sea Part of the Mediterranean Sea between Greece and Turkey, bounded by Crete to the s and connected to the Black Sea and the Sea of Marmara by the Dardanelles to the ne. World Encyclopedia 2005, originally published by Oxford University Press 2005. Aegean Sea Part of the Mediterranean Sea between Greece and Turkey, bounded by Crete to the s and connected to the Black Sea and the Sea of Marmara by the Dardanelles to the ne.