Aihui Region
A historical region in Manchuria that was ceded to Russia by the Treaty of Aihui in 1689.
Aihun Convention
An 1858 treaty between the Russian Empire and the Qing dynasty that ceded the Amur River region to Russia.
Aihui Incident
A 1900 incident in which Russian troops occupied Aihui, China, during the Boxer Rebellion.