Although the truth is still debated, Vinland Map (as of mid- 13th century C.E.) has been labeled 'Mare Occmmingumigne' in the sense of 'East Sea'. Since then, Walter Müller, M. World Map of the World (1907), Bordone, B. World Map of 1528, Master, S. The same meaning is given in the same name as the World Map (in 1540). But the Eastern Sea was not named as the given sea between our countries and Japan but as the great sea on the east side of the Mediterranean, the great ocean of the East, which