[citation needed] Following the Boxer Rebellion the city was briefly occupied by Russia, until 1906, when it was returned to the Qing dynasty.
[4] The primary trees of Aihui District are larch, red pine, poplar, and birch.
[4] The district shares a 184.3 kilometres (114.5 mi) border with Russia, and faces the Russian city of Blagoveshchensk.
[3] Aihui is home to 26 different ethnic groups, including Han Chinese, Manchu, Hui, Daur, Oroqen, Korean, and Mongol populations.
[5] As of the 1990s, the village of Dawujia (Chinese: 大五家子屯), located in the district, remained one of the few pockets where the Manchu language was commonly spoken.
[4] 2 Formally part of Oroqen Banner in Inner Mongolia but administered de facto by Daxing'anling Prefecture in Heilongjiang.