Outer Manchuria 外东北

Outer Manchuria or Outer Northeast China (Chinese: 外满洲 or 外东北; Russian: Приаму́рье or Priamurye) is an unofficial term for a territory in Northeast Asia that was formerly part of the Chinese Qing dynasty and now belongs to Russia. It is considered part of the larger historical region of Manchuria which also includes the modern-day Northeast China. Russia officially received this territory by the unequal treaties of the Treaty of Aigun in 1858 and the Treaty of Peking in 1860. The northern part of the area was also in dispute between 1643 and 1689.