The map shows the eastern Mediterranean Sea. A map of the Middle East. Letter A is located south of the Mediterranean Sea, next to the Nile River. Letter B is located to the east of the Mediterranean Sea near the Jordan River. Letter C is located between the Tigris and Euphrates rivers. Letter D is located on an island in the Mediterranean Sea, not far from letter B. Judaism was founded in a region called Israel, which is shown on the map at letter A. B. C. D.