MÆSIA, or MYSIA, in Ancient Geography, a country of Europe, extending from the confluence of the Sa-vus and the Danube to the shores of the Euxine. It was divided into Upper and Lower Mæsia. Lower Mæsia was on the borders of the Euxine, and comprehended that tract of country which received the name of Pontus from its vicinity to the sea. Upper Mæsia lay beyond the other, in the inland country.