History of the administrative divisions of China (1949–present)

Nanjing, the old capital of the Republic of China, was deprived of its municipality status and annexed by Jiangsu province.

The province of Liaoning was formed out of the merger of Liaodong and Liaoxi, while Songjiang, Suiyuan and Ningxia disappeared into Heilongjiang, Inner Mongolia and Gansu, respectively.

[1]: 13 The process continued in 1955 with Rehe being split among Hebei, Liaoning and Inner Mongolia, and Xikang disappearing into Sichuan.

[citation needed] In 1957 two more autonomous regions were added, Ningxia (split back out of Gansu) and Guangxi (which was previously a province).

In 1969, as part of the Cultural Revolution, Inner Mongolia was truncated; Hulunbuir was ceded to Heilongjiang, Jirim to Jilin, Juuuda to Liaoning, and the Alxa League split between Ejin Banner going to Gansu and the Alashan Region to Ningxia.

[citation needed] In that same year Hong Kong reverted to Chinese rule and became the first special administrative region.