Huainan

Huainan () is a prefecture-level city with 3,033,528 inhabitants as of the 2020 census in north-central Anhui province, China. It is named for the Han-era Principality of Huainan. It borders the provincial capital of Hefei to the south, Lu'an to the southwest, Fuyang to the west, Bozhou to the northwest, Bengbu to the northeast and Chuzhou to the east. Huainan is one of the core cities of Hefei Metropolitan Circle and is known for its coal industry and thermal power plants. Its built-up area made of 4 urban districts (all but Panji not yet conurbated) and Fengtai County largely being urbanized

district in Anhui Province, China

district in Anhui Province, China

district in Anhui Province, China

county in Huainan, Anhui, China

district in Anhui Province, China

county

district in Huainan, Province, China

Zhoulai () was a small state of the Spring and Autumn period that ruled a crucial part of the middle Huai River valley. Its capital, known by the same name, was located in modern-day Fengtai County in Huainan. Due to its strategic location, Zhoulai controlled the most important route from Hubei to the Yellow Sea. This made it a target of the expansionist state of Chu, which subjugated Zhoulai in the late 7th century BC in order to gain access to the east. While nominally allowed to maintain autonomy under its own dynasty, Zhoulai effectively became a puppet state under Chu military occupation