北京条约
In 1840, the First Opium War broke out, and China was defeated by Britain. In view of the weakness of the Qing government, Britain and other nations such as France, Russia and Japan started to exert influence over China. Due to their inferior army and navy, the Qing dynasty was forced to sign many agreements which became known as the Unequal Treaties. These include the Treaty of Nanking (1842), the Treaty of Aigun (1858), the Treaty of Tientsin (1858), the Convention of Peking (1860), the Treaty of Shimonoseki (1895), and the Second Convention of Peking (1898).