Claim: Quanshan (also known as Pengcheng), in Xuzhou, a major city in northwestern Jiangsu, China, has a total population of 732,300 residents in 2018 and covers a land area of 100 km (40 sq mi).
Evidence: Xuzhou (徐州), also known as Pengcheng (彭城) in ancient times, is a major city in northwestern Jiangsu province, China.