Outer Manchuria
Outer Manchuria, also called Great Northeast Area (Chinese: 外東北 Wài Dōngběi "Outer North-East") or Russian Manchuria, refers to a region in Northeast Asia that is now part of the Russian Far East, but historically formed part of Manchuria until the mid-19th century. While Manchuria now more normatively refers to Northeast China, it originally included areas consisting of Priamurye between the left bank of Amur River and the Stanovoy Range to the north, and Primorskaya which covered the area in the right bank of both Ussuri River and the lower Amur River to the Pacific Coast.